forked from mirrors/jj
26581750fe
Many (most?) callers of `Store::empty_tree_id()` really want a `MergedTreeId`, so let's create a helper for that. It returns the `Legacy` variant, which is what all current callers used. That should be all we need since the two variants compare equal these days, and since trees built based on the legacy variant can get promoted to the new variant on write if the config is enabled.
1168 lines
41 KiB
Rust
1168 lines
41 KiB
Rust
// Copyright 2023 The Jujutsu Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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use itertools::Itertools;
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use jj_lib::backend::{FileId, MergedTreeId, TreeValue};
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use jj_lib::matchers::{EverythingMatcher, FilesMatcher};
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use jj_lib::merge::{Merge, MergeBuilder};
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use jj_lib::merged_tree::{MergedTree, MergedTreeBuilder, MergedTreeValue};
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use jj_lib::repo::Repo;
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use jj_lib::repo_path::{RepoPath, RepoPathComponent, RepoPathJoin};
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use jj_lib::tree::merge_trees;
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use pretty_assertions::assert_eq;
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use testutils::{create_single_tree, write_file, write_normal_file, TestRepo};
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fn file_value(file_id: &FileId) -> TreeValue {
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TreeValue::File {
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id: file_id.clone(),
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executable: false,
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}
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}
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#[test]
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fn test_from_legacy_tree() {
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let store = repo.store();
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let mut tree_builder = store.tree_builder(repo.store().empty_tree_id().clone());
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// file1: regular file without conflicts
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let file1_path = RepoPath::from_internal_string("no_conflict");
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let file1_id = write_normal_file(&mut tree_builder, &file1_path, "foo");
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// file2: 3-way conflict
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let file2_path = RepoPath::from_internal_string("3way");
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let file2_v1_id = write_file(store.as_ref(), &file2_path, "file2_v1");
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let file2_v2_id = write_file(store.as_ref(), &file2_path, "file2_v2");
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let file2_v3_id = write_file(store.as_ref(), &file2_path, "file2_v3");
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let file2_conflict = Merge::new(
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vec![Some(file_value(&file2_v1_id))],
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vec![
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Some(file_value(&file2_v2_id)),
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Some(file_value(&file2_v3_id)),
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],
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);
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let file2_conflict_id = store.write_conflict(&file2_path, &file2_conflict).unwrap();
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tree_builder.set(file2_path.clone(), TreeValue::Conflict(file2_conflict_id));
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// file3: modify/delete conflict
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let file3_path = RepoPath::from_internal_string("modify_delete");
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let file3_v1_id = write_file(store.as_ref(), &file3_path, "file3_v1");
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let file3_v2_id = write_file(store.as_ref(), &file3_path, "file3_v2");
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let file3_conflict = Merge::new(
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vec![Some(file_value(&file3_v1_id))],
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vec![Some(file_value(&file3_v2_id)), None],
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);
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let file3_conflict_id = store.write_conflict(&file3_path, &file3_conflict).unwrap();
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tree_builder.set(file3_path.clone(), TreeValue::Conflict(file3_conflict_id));
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// file4: add/add conflict
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let file4_path = RepoPath::from_internal_string("add_add");
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let file4_v1_id = write_file(store.as_ref(), &file4_path, "file4_v1");
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let file4_v2_id = write_file(store.as_ref(), &file4_path, "file4_v2");
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let file4_conflict = Merge::new(
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vec![None],
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vec![
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Some(file_value(&file4_v1_id)),
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Some(file_value(&file4_v2_id)),
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],
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);
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let file4_conflict_id = store.write_conflict(&file4_path, &file4_conflict).unwrap();
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tree_builder.set(file4_path.clone(), TreeValue::Conflict(file4_conflict_id));
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// file5: 5-way conflict
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let file5_path = RepoPath::from_internal_string("5way");
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let file5_v1_id = write_file(store.as_ref(), &file5_path, "file5_v1");
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let file5_v2_id = write_file(store.as_ref(), &file5_path, "file5_v2");
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let file5_v3_id = write_file(store.as_ref(), &file5_path, "file5_v3");
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let file5_v4_id = write_file(store.as_ref(), &file5_path, "file5_v4");
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let file5_v5_id = write_file(store.as_ref(), &file5_path, "file5_v5");
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let file5_conflict = Merge::new(
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vec![
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Some(file_value(&file5_v1_id)),
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Some(file_value(&file5_v2_id)),
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],
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vec![
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Some(file_value(&file5_v3_id)),
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Some(file_value(&file5_v4_id)),
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Some(file_value(&file5_v5_id)),
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],
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);
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let file5_conflict_id = store.write_conflict(&file5_path, &file5_conflict).unwrap();
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tree_builder.set(file5_path.clone(), TreeValue::Conflict(file5_conflict_id));
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// dir1: directory without conflicts
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let dir1_basename = RepoPathComponent::from("dir1");
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write_normal_file(
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&mut tree_builder,
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&RepoPath::root()
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.join(&dir1_basename)
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.join(&RepoPathComponent::from("file")),
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"foo",
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);
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let tree_id = tree_builder.write_tree();
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let tree = store.get_tree(&RepoPath::root(), &tree_id).unwrap();
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let merged_tree = MergedTree::from_legacy_tree(tree.clone()).unwrap();
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assert_eq!(
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merged_tree.value(&RepoPathComponent::from("missing")),
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MergedTreeValue::Resolved(None)
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);
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// file1: regular file without conflicts
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assert_eq!(
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merged_tree.value(&file1_path.components()[0]),
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MergedTreeValue::Resolved(Some(&TreeValue::File {
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id: file1_id,
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executable: false,
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}))
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);
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// file2: 3-way conflict
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assert_eq!(
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merged_tree.value(&file2_path.components()[0]),
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MergedTreeValue::Conflict(Merge::new(
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vec![Some(file_value(&file2_v1_id)), None],
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vec![
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Some(file_value(&file2_v2_id)),
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Some(file_value(&file2_v3_id)),
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None,
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],
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))
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);
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// file3: modify/delete conflict
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assert_eq!(
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merged_tree.value(&file3_path.components()[0]),
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MergedTreeValue::Conflict(Merge::new(
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vec![Some(file_value(&file3_v1_id)), None],
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vec![Some(file_value(&file3_v2_id)), None, None],
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))
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);
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// file4: add/add conflict
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assert_eq!(
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merged_tree.value(&file4_path.components()[0]),
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MergedTreeValue::Conflict(Merge::new(
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vec![None, None],
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vec![
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Some(file_value(&file4_v1_id)),
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Some(file_value(&file4_v2_id)),
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None
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],
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))
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);
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// file5: 5-way conflict
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assert_eq!(
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merged_tree.value(&file5_path.components()[0]),
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MergedTreeValue::Conflict(Merge::new(
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vec![
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Some(file_value(&file5_v1_id)),
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Some(file_value(&file5_v2_id)),
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],
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vec![
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Some(file_value(&file5_v3_id)),
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Some(file_value(&file5_v4_id)),
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Some(file_value(&file5_v5_id)),
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],
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))
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);
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// file6: directory without conflicts
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assert_eq!(
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merged_tree.value(&dir1_basename),
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MergedTreeValue::Resolved(tree.value(&dir1_basename))
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);
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// Also test that MergedTreeBuilder can create the same tree by starting from an
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// empty legacy tree.
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let mut tree_builder = MergedTreeBuilder::new(store.empty_merged_tree_id());
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for (path, value) in tree.entries() {
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tree_builder.set_or_remove(path, Merge::normal(value));
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}
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let recreated_legacy_id = tree_builder.write_tree(store).unwrap();
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assert_eq!(recreated_legacy_id, MergedTreeId::Legacy(tree_id.clone()));
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// Create the merged tree by starting from an empty merged tree.
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let empty_merged_id_builder: MergeBuilder<_> = std::iter::repeat(store.empty_tree_id())
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.take(5)
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.cloned()
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.collect();
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let empty_merged_id = MergedTreeId::Merge(empty_merged_id_builder.build());
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let mut tree_builder = MergedTreeBuilder::new(empty_merged_id);
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for (path, value) in merged_tree.entries() {
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tree_builder.set_or_remove(path, value);
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}
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let recreated_merged_id = tree_builder.write_tree(store).unwrap();
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assert_eq!(recreated_merged_id, merged_tree.id());
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}
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#[test]
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fn test_path_value_and_entries() {
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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// Create a MergedTree
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let resolved_file_path = RepoPath::from_internal_string("dir1/subdir/resolved");
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let resolved_dir_path = resolved_file_path.parent().unwrap();
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let conflicted_file_path = RepoPath::from_internal_string("dir2/conflicted");
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let missing_path = RepoPath::from_internal_string("dir2/missing_file");
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let modify_delete_path = RepoPath::from_internal_string("dir2/modify_delete");
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let file_dir_conflict_path = RepoPath::from_internal_string("file_dir");
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let file_dir_conflict_sub_path = RepoPath::from_internal_string("file_dir/file");
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let tree1 = create_single_tree(
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repo,
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&[
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(&resolved_file_path, "unchanged"),
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(&conflicted_file_path, "1"),
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(&modify_delete_path, "1"),
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(&file_dir_conflict_path, "1"),
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],
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);
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let tree2 = create_single_tree(
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repo,
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&[
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(&resolved_file_path, "unchanged"),
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(&conflicted_file_path, "2"),
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(&modify_delete_path, "2"),
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(&file_dir_conflict_path, "2"),
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],
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);
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let tree3 = create_single_tree(
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repo,
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&[
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(&resolved_file_path, "unchanged"),
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(&conflicted_file_path, "3"),
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// No modify_delete_path in this tree
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(&file_dir_conflict_sub_path, "1"),
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],
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);
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let merged_tree = MergedTree::Merge(Merge::new(
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vec![tree1.clone()],
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vec![tree2.clone(), tree3.clone()],
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));
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// Get the root tree
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assert_eq!(
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merged_tree.path_value(&RepoPath::root()),
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Merge::new(
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vec![Some(TreeValue::Tree(tree1.id().clone()))],
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vec![
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Some(TreeValue::Tree(tree2.id().clone())),
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Some(TreeValue::Tree(tree3.id().clone())),
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]
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)
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);
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// Get file path without conflict
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assert_eq!(
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merged_tree.path_value(&resolved_file_path),
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Merge::resolved(tree1.path_value(&resolved_file_path)),
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);
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// Get directory path without conflict
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assert_eq!(
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merged_tree.path_value(&resolved_dir_path),
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Merge::resolved(tree1.path_value(&resolved_dir_path)),
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);
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// Get missing path
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assert_eq!(merged_tree.path_value(&missing_path), Merge::absent());
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// Get modify/delete conflict (some None values)
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assert_eq!(
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merged_tree.path_value(&modify_delete_path),
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Merge::new(
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vec![tree1.path_value(&modify_delete_path)],
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vec![tree2.path_value(&modify_delete_path), None]
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),
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);
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// Get file/dir conflict path
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assert_eq!(
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merged_tree.path_value(&file_dir_conflict_path),
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Merge::new(
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vec![tree1.path_value(&file_dir_conflict_path)],
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vec![
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tree2.path_value(&file_dir_conflict_path),
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tree3.path_value(&file_dir_conflict_path)
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]
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),
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);
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// Get file inside file/dir conflict
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// There is a conflict in the parent directory, but this file is still resolved
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assert_eq!(
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merged_tree.path_value(&file_dir_conflict_sub_path),
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Merge::resolved(tree3.path_value(&file_dir_conflict_sub_path)),
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);
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// Test entries()
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let actual_entries = merged_tree.entries().collect_vec();
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// missing_path, resolved_dir_path, and file_dir_conflict_sub_path should not
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// appear
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let expected_entries = [
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&resolved_file_path,
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&conflicted_file_path,
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&modify_delete_path,
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&file_dir_conflict_path,
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]
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.iter()
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.sorted()
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.map(|path| ((*path).clone(), merged_tree.path_value(path)))
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.collect_vec();
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assert_eq!(actual_entries, expected_entries);
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let actual_entries = merged_tree
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.entries_matching(&FilesMatcher::new(&[
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resolved_file_path.clone(),
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modify_delete_path.clone(),
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file_dir_conflict_sub_path.clone(),
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]))
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.collect_vec();
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let expected_entries = [&resolved_file_path, &modify_delete_path]
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.iter()
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.sorted()
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.map(|path| ((*path).clone(), merged_tree.path_value(path)))
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.collect_vec();
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assert_eq!(actual_entries, expected_entries);
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}
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#[test]
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fn test_resolve_success() {
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let unchanged_path = RepoPath::from_internal_string("unchanged");
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let trivial_file_path = RepoPath::from_internal_string("trivial-file");
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let trivial_hunk_path = RepoPath::from_internal_string("trivial-hunk");
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let both_added_dir_path = RepoPath::from_internal_string("added-dir");
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let both_added_dir_file1_path = both_added_dir_path.join(&RepoPathComponent::from("file1"));
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let both_added_dir_file2_path = both_added_dir_path.join(&RepoPathComponent::from("file2"));
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let emptied_dir_path = RepoPath::from_internal_string("to-become-empty");
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let emptied_dir_file1_path = emptied_dir_path.join(&RepoPathComponent::from("file1"));
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let emptied_dir_file2_path = emptied_dir_path.join(&RepoPathComponent::from("file2"));
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let base1 = create_single_tree(
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repo,
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&[
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(&unchanged_path, "unchanged"),
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(&trivial_file_path, "base1"),
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(&trivial_hunk_path, "line1\nline2\nline3\n"),
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(&emptied_dir_file1_path, "base1"),
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(&emptied_dir_file2_path, "base1"),
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],
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);
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let side1 = create_single_tree(
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repo,
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&[
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(&unchanged_path, "unchanged"),
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(&trivial_file_path, "base1"),
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(&trivial_hunk_path, "line1 side1\nline2\nline3\n"),
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(&both_added_dir_file1_path, "side1"),
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(&emptied_dir_file2_path, "base1"),
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],
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);
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let side2 = create_single_tree(
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repo,
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&[
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(&unchanged_path, "unchanged"),
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(&trivial_file_path, "side2"),
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(&trivial_hunk_path, "line1\nline2\nline3 side2\n"),
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(&both_added_dir_file2_path, "side2"),
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(&emptied_dir_file1_path, "base1"),
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],
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);
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let expected = create_single_tree(
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repo,
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&[
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(&unchanged_path, "unchanged"),
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(&trivial_file_path, "side2"),
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(&trivial_hunk_path, "line1 side1\nline2\nline3 side2\n"),
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(&both_added_dir_file1_path, "side1"),
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(&both_added_dir_file2_path, "side2"),
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],
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);
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let tree = MergedTree::new(Merge::new(vec![base1], vec![side1, side2]));
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let resolved = tree.resolve().unwrap();
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let resolved_tree = resolved.as_resolved().unwrap().clone();
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assert_eq!(
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resolved_tree,
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expected,
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"actual entries: {:#?}, expected entries {:#?}",
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resolved_tree.entries().collect_vec(),
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expected.entries().collect_vec()
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);
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}
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|
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#[test]
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fn test_resolve_root_becomes_empty() {
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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let store = repo.store();
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let path1 = RepoPath::from_internal_string("dir1/file");
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let path2 = RepoPath::from_internal_string("dir2/file");
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let base1 = create_single_tree(repo, &[(&path1, "base1"), (&path2, "base1")]);
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let side1 = create_single_tree(repo, &[(&path2, "base1")]);
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let side2 = create_single_tree(repo, &[(&path1, "base1")]);
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let tree = MergedTree::new(Merge::new(vec![base1], vec![side1, side2]));
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let resolved = tree.resolve().unwrap();
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assert_eq!(resolved.as_resolved().unwrap().id(), store.empty_tree_id());
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}
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#[test]
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fn test_resolve_with_conflict() {
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let test_repo = TestRepo::init(true);
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let repo = &test_repo.repo;
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// The trivial conflict should be resolved but the non-trivial should not (and
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// cannot)
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let trivial_path = RepoPath::from_internal_string("dir1/trivial");
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let conflict_path = RepoPath::from_internal_string("dir2/file_conflict");
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let base1 = create_single_tree(repo, &[(&trivial_path, "base1"), (&conflict_path, "base1")]);
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let side1 = create_single_tree(repo, &[(&trivial_path, "side1"), (&conflict_path, "side1")]);
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let side2 = create_single_tree(repo, &[(&trivial_path, "base1"), (&conflict_path, "side2")]);
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let expected_base1 =
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create_single_tree(repo, &[(&trivial_path, "side1"), (&conflict_path, "base1")]);
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let expected_side1 =
|
|
create_single_tree(repo, &[(&trivial_path, "side1"), (&conflict_path, "side1")]);
|
|
let expected_side2 =
|
|
create_single_tree(repo, &[(&trivial_path, "side1"), (&conflict_path, "side2")]);
|
|
|
|
let tree = MergedTree::new(Merge::new(vec![base1], vec![side1, side2]));
|
|
let resolved_tree = tree.resolve().unwrap();
|
|
assert_eq!(
|
|
resolved_tree,
|
|
Merge::new(vec![expected_base1], vec![expected_side1, expected_side2])
|
|
)
|
|
}
|
|
|
|
#[test]
|
|
fn test_conflict_iterator() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let unchanged_path = RepoPath::from_internal_string("dir/subdir/unchanged");
|
|
let trivial_path = RepoPath::from_internal_string("dir/subdir/trivial");
|
|
let trivial_hunk_path = RepoPath::from_internal_string("dir/non_trivial");
|
|
let file_conflict_path = RepoPath::from_internal_string("dir/subdir/file_conflict");
|
|
let modify_delete_path = RepoPath::from_internal_string("dir/subdir/modify_delete");
|
|
let same_add_path = RepoPath::from_internal_string("dir/subdir/same_add");
|
|
let different_add_path = RepoPath::from_internal_string("dir/subdir/different_add");
|
|
let dir_file_path = RepoPath::from_internal_string("dir/subdir/dir_file");
|
|
let added_dir_path = RepoPath::from_internal_string("dir/new_dir");
|
|
let modify_delete_dir_path = RepoPath::from_internal_string("dir/modify_delete_dir");
|
|
let base1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&unchanged_path, "unchanged"),
|
|
(&trivial_path, "base"),
|
|
(&trivial_hunk_path, "line1\nline2\nline3\n"),
|
|
(&file_conflict_path, "base"),
|
|
(&modify_delete_path, "base"),
|
|
// no same_add_path
|
|
// no different_add_path
|
|
(&dir_file_path, "base"),
|
|
// no added_dir_path
|
|
(
|
|
&modify_delete_dir_path.join(&RepoPathComponent::from("base")),
|
|
"base",
|
|
),
|
|
],
|
|
);
|
|
let side1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&unchanged_path, "unchanged"),
|
|
(&trivial_path, "base"),
|
|
(&file_conflict_path, "side1"),
|
|
(&trivial_hunk_path, "line1 side1\nline2\nline3\n"),
|
|
(&modify_delete_path, "modified"),
|
|
(&same_add_path, "same"),
|
|
(&different_add_path, "side1"),
|
|
(&dir_file_path, "side1"),
|
|
(
|
|
&added_dir_path.join(&RepoPathComponent::from("side1")),
|
|
"side1",
|
|
),
|
|
(
|
|
&modify_delete_dir_path.join(&RepoPathComponent::from("side1")),
|
|
"side1",
|
|
),
|
|
],
|
|
);
|
|
let side2 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&unchanged_path, "unchanged"),
|
|
(&trivial_path, "side2"),
|
|
(&file_conflict_path, "side2"),
|
|
(&trivial_hunk_path, "line1\nline2\nline3 side2\n"),
|
|
// no modify_delete_path
|
|
(&same_add_path, "same"),
|
|
(&different_add_path, "side2"),
|
|
(&dir_file_path.join(&RepoPathComponent::from("dir")), "new"),
|
|
(
|
|
&added_dir_path.join(&RepoPathComponent::from("side2")),
|
|
"side2",
|
|
),
|
|
// no modify_delete_dir_path
|
|
],
|
|
);
|
|
|
|
let tree = MergedTree::new(Merge::new(
|
|
vec![base1.clone()],
|
|
vec![side1.clone(), side2.clone()],
|
|
));
|
|
let conflicts = tree.conflicts().collect_vec();
|
|
let conflict_at = |path: &RepoPath| {
|
|
Merge::new(
|
|
vec![base1.path_value(path)],
|
|
vec![side1.path_value(path), side2.path_value(path)],
|
|
)
|
|
};
|
|
// We initially also get a conflict in trivial_hunk_path because we had
|
|
// forgotten to resolve conflicts
|
|
assert_eq!(
|
|
conflicts,
|
|
vec![
|
|
(trivial_hunk_path.clone(), conflict_at(&trivial_hunk_path)),
|
|
(different_add_path.clone(), conflict_at(&different_add_path)),
|
|
(dir_file_path.clone(), conflict_at(&dir_file_path)),
|
|
(file_conflict_path.clone(), conflict_at(&file_conflict_path)),
|
|
(modify_delete_path.clone(), conflict_at(&modify_delete_path)),
|
|
]
|
|
);
|
|
|
|
// After we resolve conflicts, there are only non-trivial conflicts left
|
|
let tree = MergedTree::Merge(tree.resolve().unwrap());
|
|
let conflicts = tree.conflicts().collect_vec();
|
|
assert_eq!(
|
|
conflicts,
|
|
vec![
|
|
(different_add_path.clone(), conflict_at(&different_add_path)),
|
|
(dir_file_path.clone(), conflict_at(&dir_file_path)),
|
|
(file_conflict_path.clone(), conflict_at(&file_conflict_path)),
|
|
(modify_delete_path.clone(), conflict_at(&modify_delete_path)),
|
|
]
|
|
);
|
|
|
|
let merged_legacy_tree = merge_trees(&side1, &base1, &side2).unwrap();
|
|
let legacy_conflicts = MergedTree::legacy(merged_legacy_tree)
|
|
.conflicts()
|
|
.collect_vec();
|
|
assert_eq!(legacy_conflicts, conflicts);
|
|
}
|
|
#[test]
|
|
fn test_conflict_iterator_higher_arity() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let two_sided_path = RepoPath::from_internal_string("dir/2-sided");
|
|
let three_sided_path = RepoPath::from_internal_string("dir/3-sided");
|
|
let base1 = create_single_tree(
|
|
repo,
|
|
&[(&two_sided_path, "base1"), (&three_sided_path, "base1")],
|
|
);
|
|
let base2 = create_single_tree(
|
|
repo,
|
|
&[(&two_sided_path, "base2"), (&three_sided_path, "base2")],
|
|
);
|
|
let side1 = create_single_tree(
|
|
repo,
|
|
&[(&two_sided_path, "side1"), (&three_sided_path, "side1")],
|
|
);
|
|
let side2 = create_single_tree(
|
|
repo,
|
|
&[(&two_sided_path, "base1"), (&three_sided_path, "side2")],
|
|
);
|
|
let side3 = create_single_tree(
|
|
repo,
|
|
&[(&two_sided_path, "side3"), (&three_sided_path, "side3")],
|
|
);
|
|
|
|
let tree = MergedTree::new(Merge::new(
|
|
vec![base1.clone(), base2.clone()],
|
|
vec![side1.clone(), side2.clone(), side3.clone()],
|
|
));
|
|
let conflicts = tree.conflicts().collect_vec();
|
|
let conflict_at = |path: &RepoPath| {
|
|
Merge::new(
|
|
vec![base1.path_value(path), base2.path_value(path)],
|
|
vec![
|
|
side1.path_value(path),
|
|
side2.path_value(path),
|
|
side3.path_value(path),
|
|
],
|
|
)
|
|
};
|
|
// Both paths have the full, unsimplified conflict (3-sided)
|
|
assert_eq!(
|
|
conflicts,
|
|
vec![
|
|
(two_sided_path.clone(), conflict_at(&two_sided_path)),
|
|
(three_sided_path.clone(), conflict_at(&three_sided_path))
|
|
]
|
|
);
|
|
// Iterating over conflicts in a legacy tree yields the simplified conflict at
|
|
// each path
|
|
let merged_legacy_tree = merge_trees(&side1, &base1, &side2).unwrap();
|
|
let merged_legacy_tree = merge_trees(&merged_legacy_tree, &base2, &side3).unwrap();
|
|
let legacy_conflicts = MergedTree::legacy(merged_legacy_tree)
|
|
.conflicts()
|
|
.collect_vec();
|
|
assert_eq!(
|
|
legacy_conflicts,
|
|
vec![
|
|
(
|
|
two_sided_path.clone(),
|
|
Merge::new(
|
|
vec![base2.path_value(&two_sided_path)],
|
|
vec![
|
|
side1.path_value(&two_sided_path),
|
|
side3.path_value(&two_sided_path),
|
|
],
|
|
)
|
|
),
|
|
(three_sided_path.clone(), conflict_at(&three_sided_path))
|
|
]
|
|
);
|
|
}
|
|
|
|
/// Diff two resolved trees
|
|
#[test]
|
|
fn test_diff_resolved() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let clean_path = RepoPath::from_internal_string("dir1/file");
|
|
let modified_path = RepoPath::from_internal_string("dir2/file");
|
|
let removed_path = RepoPath::from_internal_string("dir3/file");
|
|
let added_path = RepoPath::from_internal_string("dir4/file");
|
|
let before = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&clean_path, "clean"),
|
|
(&modified_path, "before"),
|
|
(&removed_path, "before"),
|
|
],
|
|
);
|
|
let after = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&clean_path, "clean"),
|
|
(&modified_path, "after"),
|
|
(&added_path, "after"),
|
|
],
|
|
);
|
|
let before_merged = MergedTree::new(Merge::resolved(before.clone()));
|
|
let after_merged = MergedTree::new(Merge::resolved(after.clone()));
|
|
|
|
let diff = before_merged
|
|
.diff(&after_merged, &EverythingMatcher)
|
|
.collect_vec();
|
|
assert_eq!(diff.len(), 3);
|
|
assert_eq!(
|
|
diff[0].clone(),
|
|
(
|
|
modified_path.clone(),
|
|
Merge::resolved(before.path_value(&modified_path)),
|
|
Merge::resolved(after.path_value(&modified_path)),
|
|
)
|
|
);
|
|
assert_eq!(
|
|
diff[1].clone(),
|
|
(
|
|
removed_path.clone(),
|
|
Merge::resolved(before.path_value(&removed_path)),
|
|
Merge::absent(),
|
|
)
|
|
);
|
|
assert_eq!(
|
|
diff[2].clone(),
|
|
(
|
|
added_path.clone(),
|
|
Merge::absent(),
|
|
Merge::resolved(after.path_value(&added_path)),
|
|
)
|
|
);
|
|
}
|
|
|
|
/// Diff two conflicted trees
|
|
#[test]
|
|
fn test_diff_conflicted() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
// path1 is a clean (unchanged) conflict
|
|
// path2 is a conflict before and different conflict after
|
|
// path3 is resolved before and a conflict after
|
|
// path4 is missing before and a conflict after
|
|
let path1 = RepoPath::from_internal_string("dir1/file");
|
|
let path2 = RepoPath::from_internal_string("dir2/file");
|
|
let path3 = RepoPath::from_internal_string("dir4/file");
|
|
let path4 = RepoPath::from_internal_string("dir6/file");
|
|
let left_base = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-base"),
|
|
(&path2, "left-base"),
|
|
(&path3, "left"),
|
|
],
|
|
);
|
|
let left_side1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-side1"),
|
|
(&path2, "left-side1"),
|
|
(&path3, "left"),
|
|
],
|
|
);
|
|
let left_side2 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-side2"),
|
|
(&path2, "left-side2"),
|
|
(&path3, "left"),
|
|
],
|
|
);
|
|
let right_base = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-base"),
|
|
(&path2, "right-base"),
|
|
(&path3, "right-base"),
|
|
(&path4, "right-base"),
|
|
],
|
|
);
|
|
let right_side1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-side1"),
|
|
(&path2, "right-side1"),
|
|
(&path3, "right-side1"),
|
|
(&path4, "right-side1"),
|
|
],
|
|
);
|
|
let right_side2 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "clean-side2"),
|
|
(&path2, "right-side2"),
|
|
(&path3, "right-side2"),
|
|
(&path4, "right-side2"),
|
|
],
|
|
);
|
|
let left_merged = MergedTree::new(Merge::new(
|
|
vec![left_base.clone()],
|
|
vec![left_side1.clone(), left_side2.clone()],
|
|
));
|
|
let right_merged = MergedTree::new(Merge::new(
|
|
vec![right_base.clone()],
|
|
vec![right_side1.clone(), right_side2.clone()],
|
|
));
|
|
|
|
// Test the forwards diff
|
|
let actual_diff = left_merged
|
|
.diff(&right_merged, &EverythingMatcher)
|
|
.collect_vec();
|
|
let expected_diff = [&path2, &path3, &path4]
|
|
.iter()
|
|
.map(|path| {
|
|
(
|
|
(*path).clone(),
|
|
left_merged.path_value(path),
|
|
right_merged.path_value(path),
|
|
)
|
|
})
|
|
.collect_vec();
|
|
assert_eq!(actual_diff, expected_diff);
|
|
// Test the reverse diff
|
|
let actual_diff = right_merged
|
|
.diff(&left_merged, &EverythingMatcher)
|
|
.collect_vec();
|
|
let expected_diff = [&path2, &path3, &path4]
|
|
.iter()
|
|
.map(|path| {
|
|
(
|
|
(*path).clone(),
|
|
right_merged.path_value(path),
|
|
left_merged.path_value(path),
|
|
)
|
|
})
|
|
.collect_vec();
|
|
assert_eq!(actual_diff, expected_diff);
|
|
}
|
|
|
|
#[test]
|
|
fn test_diff_dir_file() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
// path1: file1 -> directory1
|
|
// path2: file1 -> directory1+(directory2-absent)
|
|
// path3: file1 -> directory1+(file1-absent)
|
|
// path4: file1+(file2-file3) -> directory1+(directory2-directory3)
|
|
// path5: directory1 -> file1+(file2-absent)
|
|
// path6: directory1 -> file1+(directory1-absent)
|
|
let path1 = RepoPath::from_internal_string("path1");
|
|
let path2 = RepoPath::from_internal_string("path2");
|
|
let path3 = RepoPath::from_internal_string("path3");
|
|
let path4 = RepoPath::from_internal_string("path4");
|
|
let path5 = RepoPath::from_internal_string("path5");
|
|
let path6 = RepoPath::from_internal_string("path6");
|
|
let file = RepoPathComponent::from("file");
|
|
let left_base = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "left"),
|
|
(&path2, "left"),
|
|
(&path3, "left"),
|
|
(&path4, "left-base"),
|
|
(&path5.join(&file), "left"),
|
|
(&path6.join(&file), "left"),
|
|
],
|
|
);
|
|
let left_side1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "left"),
|
|
(&path2, "left"),
|
|
(&path3, "left"),
|
|
(&path4, "left-side1"),
|
|
(&path5.join(&file), "left"),
|
|
(&path6.join(&file), "left"),
|
|
],
|
|
);
|
|
let left_side2 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1, "left"),
|
|
(&path2, "left"),
|
|
(&path3, "left"),
|
|
(&path4, "left-side2"),
|
|
(&path5.join(&file), "left"),
|
|
(&path6.join(&file), "left"),
|
|
],
|
|
);
|
|
let right_base = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1.join(&file), "right"),
|
|
// path2 absent
|
|
// path3 absent
|
|
(&path4.join(&file), "right-base"),
|
|
// path5 is absent
|
|
// path6 is absent
|
|
],
|
|
);
|
|
let right_side1 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1.join(&file), "right"),
|
|
(&path2.join(&file), "right"),
|
|
(&path3.join(&file), "right-side1"),
|
|
(&path4.join(&file), "right-side1"),
|
|
(&path5, "right-side1"),
|
|
(&path6, "right"),
|
|
],
|
|
);
|
|
let right_side2 = create_single_tree(
|
|
repo,
|
|
&[
|
|
(&path1.join(&file), "right"),
|
|
(&path2.join(&file), "right"),
|
|
(&path3, "right-side2"),
|
|
(&path4.join(&file), "right-side2"),
|
|
(&path5, "right-side2"),
|
|
(&path6.join(&file), "right"),
|
|
],
|
|
);
|
|
let left_merged = MergedTree::new(Merge::new(
|
|
vec![left_base.clone()],
|
|
vec![left_side1.clone(), left_side2.clone()],
|
|
));
|
|
let right_merged = MergedTree::new(Merge::new(
|
|
vec![right_base.clone()],
|
|
vec![right_side1.clone(), right_side2.clone()],
|
|
));
|
|
|
|
// Test the forwards diff
|
|
let actual_diff = left_merged
|
|
.diff(&right_merged, &EverythingMatcher)
|
|
.collect_vec();
|
|
let expected_diff = vec![
|
|
// path1: file1 -> directory1
|
|
(
|
|
path1.clone(),
|
|
left_merged.path_value(&path1),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path1.join(&file),
|
|
Merge::absent(),
|
|
right_merged.path_value(&path1.join(&file)),
|
|
),
|
|
// path2: file1 -> directory1+(directory2-absent)
|
|
(
|
|
path2.clone(),
|
|
left_merged.path_value(&path2),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path2.join(&file),
|
|
Merge::absent(),
|
|
right_merged.path_value(&path2.join(&file)),
|
|
),
|
|
// path3: file1 -> directory1+(file1-absent)
|
|
(
|
|
path3.clone(),
|
|
left_merged.path_value(&path3),
|
|
right_merged.path_value(&path3),
|
|
),
|
|
// path4: file1+(file2-file3) -> directory1+(directory2-directory3)
|
|
(
|
|
path4.clone(),
|
|
left_merged.path_value(&path4),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path4.join(&file),
|
|
Merge::absent(),
|
|
right_merged.path_value(&path4.join(&file)),
|
|
),
|
|
// path5: directory1 -> file1+(file2-absent)
|
|
(
|
|
path5.join(&file),
|
|
left_merged.path_value(&path5.join(&file)),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path5.clone(),
|
|
Merge::absent(),
|
|
right_merged.path_value(&path5),
|
|
),
|
|
// path6: directory1 -> file1+(directory1-absent)
|
|
(
|
|
path6.join(&file),
|
|
left_merged.path_value(&path6.join(&file)),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path6.clone(),
|
|
Merge::absent(),
|
|
right_merged.path_value(&path6),
|
|
),
|
|
];
|
|
assert_eq!(actual_diff, expected_diff);
|
|
// Test the reverse diff
|
|
let actual_diff = right_merged
|
|
.diff(&left_merged, &EverythingMatcher)
|
|
.collect_vec();
|
|
let expected_diff = vec![
|
|
// path1: file1 -> directory1
|
|
(
|
|
path1.join(&file),
|
|
right_merged.path_value(&path1.join(&file)),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path1.clone(),
|
|
Merge::absent(),
|
|
left_merged.path_value(&path1),
|
|
),
|
|
// path2: file1 -> directory1+(directory2-absent)
|
|
(
|
|
path2.join(&file),
|
|
right_merged.path_value(&path2.join(&file)),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path2.clone(),
|
|
Merge::absent(),
|
|
left_merged.path_value(&path2),
|
|
),
|
|
// path3: file1 -> directory1+(file1-absent)
|
|
(
|
|
path3.clone(),
|
|
right_merged.path_value(&path3),
|
|
left_merged.path_value(&path3),
|
|
),
|
|
// path4: file1+(file2-file3) -> directory1+(directory2-directory3)
|
|
(
|
|
path4.join(&file),
|
|
right_merged.path_value(&path4.join(&file)),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path4.clone(),
|
|
Merge::absent(),
|
|
left_merged.path_value(&path4),
|
|
),
|
|
// path5: directory1 -> file1+(file2-absent)
|
|
(
|
|
path5.clone(),
|
|
right_merged.path_value(&path5),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path5.join(&file),
|
|
Merge::absent(),
|
|
left_merged.path_value(&path5.join(&file)),
|
|
),
|
|
// path6: directory1 -> file1+(directory1-absent)
|
|
(
|
|
path6.clone(),
|
|
right_merged.path_value(&path6),
|
|
Merge::absent(),
|
|
),
|
|
(
|
|
path6.join(&file),
|
|
Merge::absent(),
|
|
left_merged.path_value(&path6.join(&file)),
|
|
),
|
|
];
|
|
assert_eq!(actual_diff, expected_diff);
|
|
}
|
|
|
|
/// Merge 3 resolved trees that can be resolved
|
|
#[test]
|
|
fn test_merge_simple() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let path1 = RepoPath::from_internal_string("dir1/file");
|
|
let path2 = RepoPath::from_internal_string("dir2/file");
|
|
let base1 = create_single_tree(repo, &[(&path1, "base"), (&path2, "base")]);
|
|
let side1 = create_single_tree(repo, &[(&path1, "side1"), (&path2, "base")]);
|
|
let side2 = create_single_tree(repo, &[(&path1, "base"), (&path2, "side2")]);
|
|
let expected = create_single_tree(repo, &[(&path1, "side1"), (&path2, "side2")]);
|
|
let base1_merged = MergedTree::new(Merge::resolved(base1));
|
|
let side1_merged = MergedTree::new(Merge::resolved(side1));
|
|
let side2_merged = MergedTree::new(Merge::resolved(side2));
|
|
let expected_merged = MergedTree::new(Merge::resolved(expected));
|
|
|
|
let merged = side1_merged.merge(&base1_merged, &side2_merged).unwrap();
|
|
assert_eq!(merged, expected_merged);
|
|
}
|
|
|
|
/// Merge 3 resolved trees that can be partially resolved
|
|
#[test]
|
|
fn test_merge_partial_resolution() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
// path1 can be resolved, path2 cannot
|
|
let path1 = RepoPath::from_internal_string("dir1/file");
|
|
let path2 = RepoPath::from_internal_string("dir2/file");
|
|
let base1 = create_single_tree(repo, &[(&path1, "base"), (&path2, "base")]);
|
|
let side1 = create_single_tree(repo, &[(&path1, "side1"), (&path2, "side1")]);
|
|
let side2 = create_single_tree(repo, &[(&path1, "base"), (&path2, "side2")]);
|
|
let expected_base1 = create_single_tree(repo, &[(&path1, "side1"), (&path2, "base")]);
|
|
let expected_side1 = create_single_tree(repo, &[(&path1, "side1"), (&path2, "side1")]);
|
|
let expected_side2 = create_single_tree(repo, &[(&path1, "side1"), (&path2, "side2")]);
|
|
let base1_merged = MergedTree::new(Merge::resolved(base1));
|
|
let side1_merged = MergedTree::new(Merge::resolved(side1));
|
|
let side2_merged = MergedTree::new(Merge::resolved(side2));
|
|
let expected_merged = MergedTree::new(Merge::new(
|
|
vec![expected_base1],
|
|
vec![expected_side1, expected_side2],
|
|
));
|
|
|
|
let merged = side1_merged.merge(&base1_merged, &side2_merged).unwrap();
|
|
assert_eq!(merged, expected_merged);
|
|
}
|
|
|
|
/// Merge 3 resolved trees, including one empty legacy tree
|
|
#[test]
|
|
fn test_merge_with_empty_legacy_tree() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let path1 = RepoPath::from_internal_string("dir1/file");
|
|
let path2 = RepoPath::from_internal_string("dir2/file");
|
|
let base1 = repo
|
|
.store()
|
|
.get_tree(&RepoPath::root(), repo.store().empty_tree_id())
|
|
.unwrap();
|
|
let side1 = create_single_tree(repo, &[(&path1, "side1")]);
|
|
let side2 = create_single_tree(repo, &[(&path2, "side2")]);
|
|
let expected = create_single_tree(repo, &[(&path1, "side1"), (&path2, "side2")]);
|
|
let base1_merged = MergedTree::legacy(base1);
|
|
let side1_merged = MergedTree::new(Merge::resolved(side1));
|
|
let side2_merged = MergedTree::new(Merge::resolved(side2));
|
|
let expected_merged = MergedTree::new(Merge::resolved(expected));
|
|
|
|
let merged = side1_merged.merge(&base1_merged, &side2_merged).unwrap();
|
|
assert_eq!(merged, expected_merged);
|
|
}
|
|
|
|
/// Merge 3 trees where each one is a 3-way conflict and the result is arrived
|
|
/// at by only simplifying the conflict (no need to recurse)
|
|
#[test]
|
|
fn test_merge_simplify_only() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
let path = RepoPath::from_internal_string("dir1/file");
|
|
let tree1 = create_single_tree(repo, &[(&path, "1")]);
|
|
let tree2 = create_single_tree(repo, &[(&path, "2")]);
|
|
let tree3 = create_single_tree(repo, &[(&path, "3")]);
|
|
let tree4 = create_single_tree(repo, &[(&path, "4")]);
|
|
let tree5 = create_single_tree(repo, &[(&path, "5")]);
|
|
let expected = tree5.clone();
|
|
let base1_merged = MergedTree::new(Merge::new(
|
|
vec![tree1.clone()],
|
|
vec![tree2.clone(), tree3.clone()],
|
|
));
|
|
let side1_merged = MergedTree::new(Merge::new(
|
|
vec![tree1.clone()],
|
|
vec![tree4.clone(), tree2.clone()],
|
|
));
|
|
let side2_merged = MergedTree::new(Merge::new(
|
|
vec![tree4.clone()],
|
|
vec![tree5.clone(), tree3.clone()],
|
|
));
|
|
let expected_merged = MergedTree::new(Merge::resolved(expected));
|
|
|
|
let merged = side1_merged.merge(&base1_merged, &side2_merged).unwrap();
|
|
assert_eq!(merged, expected_merged);
|
|
}
|
|
|
|
/// Merge 3 trees with 3+1+1 terms (i.e. a 5-way conflict) such that resolving
|
|
/// the conflict between the trees leads to two trees being the same, so the
|
|
/// result is a 3-way conflict.
|
|
#[test]
|
|
fn test_merge_simplify_result() {
|
|
let test_repo = TestRepo::init(true);
|
|
let repo = &test_repo.repo;
|
|
|
|
// The conflict in path1 cannot be resolved, but the conflict in path2 can.
|
|
let path1 = RepoPath::from_internal_string("dir1/file");
|
|
let path2 = RepoPath::from_internal_string("dir2/file");
|
|
let tree1 = create_single_tree(repo, &[(&path1, "1"), (&path2, "1")]);
|
|
let tree2 = create_single_tree(repo, &[(&path1, "2"), (&path2, "2")]);
|
|
let tree3 = create_single_tree(repo, &[(&path1, "3"), (&path2, "3")]);
|
|
let tree4 = create_single_tree(repo, &[(&path1, "4"), (&path2, "2")]);
|
|
let tree5 = create_single_tree(repo, &[(&path1, "4"), (&path2, "1")]);
|
|
let expected_base1 = create_single_tree(repo, &[(&path1, "1"), (&path2, "3")]);
|
|
let expected_side1 = create_single_tree(repo, &[(&path1, "2"), (&path2, "3")]);
|
|
let expected_side2 = create_single_tree(repo, &[(&path1, "3"), (&path2, "3")]);
|
|
let side1_merged = MergedTree::new(Merge::new(
|
|
vec![tree1.clone()],
|
|
vec![tree2.clone(), tree3.clone()],
|
|
));
|
|
let base1_merged = MergedTree::new(Merge::resolved(tree4.clone()));
|
|
let side2_merged = MergedTree::new(Merge::resolved(tree5.clone()));
|
|
let expected_merged = MergedTree::new(Merge::new(
|
|
vec![expected_base1],
|
|
vec![expected_side1, expected_side2],
|
|
));
|
|
|
|
let merged = side1_merged.merge(&base1_merged, &side2_merged).unwrap();
|
|
assert_eq!(merged, expected_merged);
|
|
}
|