jj/lib/tests/test_mut_repo.rs
Martin von Zweigbergk 9fb3521bf5 view: rename insert_git_ref() to set_git_ref()
I just feel like `set_git_ref()` is a more natural name (I was looking
for it the other day before I realized I had called it
`insert_git_ref()`).
2021-08-04 08:45:37 -07:00

559 lines
22 KiB
Rust

// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use std::sync::Arc;
use jujutsu_lib::commit_builder::CommitBuilder;
use jujutsu_lib::op_store::RefTarget;
use jujutsu_lib::repo_path::RepoPath;
use jujutsu_lib::store::{Conflict, ConflictId, ConflictPart, TreeValue};
use jujutsu_lib::store_wrapper::StoreWrapper;
use jujutsu_lib::testutils;
use jujutsu_lib::testutils::CommitGraphBuilder;
use test_case::test_case;
// TODO Many of the tests here are not run with Git because they end up creating
// two commits with the same contents.
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_open(use_git: bool) {
// Test that MutableRepo::check_out() uses the requested commit if it's open
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let requested_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(tx.mut_repo());
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
assert_eq!(actual_checkout.id(), requested_checkout.id());
let repo = tx.commit();
assert_eq!(repo.view().checkout(), actual_checkout.id());
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_closed(use_git: bool) {
// Test that MutableRepo::check_out() creates a child if the requested commit is
// closed
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let requested_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(false)
.write_to_repo(tx.mut_repo());
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
assert_eq!(actual_checkout.tree().id(), requested_checkout.tree().id());
assert_eq!(actual_checkout.parents().len(), 1);
assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
let repo = tx.commit();
assert_eq!(repo.view().checkout(), actual_checkout.id());
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_open_with_conflict(use_git: bool) {
// Test that MutableRepo::check_out() creates a child if the requested
// commit is open and has conflicts
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let store = repo.store();
let file_path = RepoPath::from_internal_string("file");
let conflict_id = write_conflict(store, &file_path);
let mut tree_builder = repo
.store()
.tree_builder(repo.store().empty_tree_id().clone());
tree_builder.set(file_path.clone(), TreeValue::Conflict(conflict_id));
let tree_id = tree_builder.write_tree();
let mut tx = repo.start_transaction("test");
let requested_checkout = CommitBuilder::for_new_commit(&settings, store, tree_id)
.set_open(true)
.write_to_repo(tx.mut_repo());
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
let file_value = actual_checkout.tree().path_value(&file_path);
match file_value {
Some(TreeValue::Normal {
id: _,
executable: false,
}) => {}
_ => panic!("unexpected tree value: {:?}", file_value),
}
assert_eq!(actual_checkout.parents().len(), 1);
assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
let repo = tx.commit();
assert_eq!(repo.view().checkout(), actual_checkout.id());
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_closed_with_conflict(use_git: bool) {
// Test that MutableRepo::check_out() creates a child if the requested commit is
// closed and has conflicts
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let store = repo.store();
let file_path = RepoPath::from_internal_string("file");
let conflict_id = write_conflict(store, &file_path);
let mut tree_builder = repo
.store()
.tree_builder(repo.store().empty_tree_id().clone());
tree_builder.set(file_path.clone(), TreeValue::Conflict(conflict_id));
let tree_id = tree_builder.write_tree();
let mut tx = repo.start_transaction("test");
let requested_checkout = CommitBuilder::for_new_commit(&settings, store, tree_id)
.set_open(false)
.write_to_repo(tx.mut_repo());
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let actual_checkout = tx.mut_repo().check_out(&settings, &requested_checkout);
let file_value = actual_checkout.tree().path_value(&file_path);
match file_value {
Some(TreeValue::Normal {
id: _,
executable: false,
}) => {}
_ => panic!("unexpected tree value: {:?}", file_value),
}
assert_eq!(actual_checkout.parents().len(), 1);
assert_eq!(actual_checkout.parents()[0].id(), requested_checkout.id());
let repo = tx.commit();
assert_eq!(repo.view().checkout(), actual_checkout.id());
}
fn write_conflict(store: &Arc<StoreWrapper>, file_path: &RepoPath) -> ConflictId {
let file_id1 = testutils::write_file(store, file_path, "a\n");
let file_id2 = testutils::write_file(store, file_path, "b\n");
let file_id3 = testutils::write_file(store, file_path, "c\n");
let conflict = Conflict {
removes: vec![ConflictPart {
value: TreeValue::Normal {
id: file_id1,
executable: false,
},
}],
adds: vec![
ConflictPart {
value: TreeValue::Normal {
id: file_id2,
executable: false,
},
},
ConflictPart {
value: TreeValue::Normal {
id: file_id3,
executable: false,
},
},
],
};
store.write_conflict(&conflict).unwrap()
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_previous_not_empty(use_git: bool) {
// Test that MutableRepo::check_out() does not usually prune the previous
// commit.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let old_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &old_checkout);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let new_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &new_checkout);
assert!(!mut_repo.evolution().is_obsolete(old_checkout.id()));
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_previous_empty(use_git: bool) {
// Test that MutableRepo::check_out() prunes the previous commit if it was
// empty.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let old_checkout = CommitBuilder::for_open_commit(
&settings,
repo.store(),
repo.store().root_commit_id().clone(),
repo.store().empty_tree_id().clone(),
)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &old_checkout);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let new_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &new_checkout);
assert!(mut_repo.evolution().is_obsolete(old_checkout.id()));
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_previous_empty_and_obsolete(use_git: bool) {
// Test that MutableRepo::check_out() does not unnecessarily prune the previous
// commit if it was empty but already obsolete.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let old_checkout = CommitBuilder::for_open_commit(
&settings,
repo.store(),
repo.store().root_commit_id().clone(),
repo.store().empty_tree_id().clone(),
)
.write_to_repo(mut_repo);
let successor = CommitBuilder::for_rewrite_from(&settings, repo.store(), &old_checkout)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &old_checkout);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let new_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &new_checkout);
let successors = mut_repo.evolution().successors(old_checkout.id());
assert_eq!(successors.len(), 1);
assert_eq!(successors.iter().next().unwrap(), successor.id());
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_checkout_previous_empty_and_pruned(use_git: bool) {
// Test that MutableRepo::check_out() does not unnecessarily prune the previous
// commit if it was empty but already obsolete.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let old_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.set_pruned(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &old_checkout);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let new_checkout = testutils::create_random_commit(&settings, &repo)
.set_open(true)
.write_to_repo(mut_repo);
mut_repo.check_out(&settings, &new_checkout);
assert!(mut_repo
.evolution()
.successors(old_checkout.id())
.is_empty());
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_add_head_success(use_git: bool) {
// Test that MutableRepo::add_head() adds the head, and that it's still there
// after commit. It should also be indexed.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
// Create a commit outside of the repo by using a temporary transaction. Then
// add that as a head.
let mut tx = repo.start_transaction("test");
let new_commit = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
tx.discard();
let index_stats = repo.index().stats();
assert_eq!(index_stats.num_heads, 1);
assert_eq!(index_stats.num_commits, 2);
assert_eq!(index_stats.max_generation_number, 1);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
assert!(!mut_repo.view().heads().contains(new_commit.id()));
assert!(!mut_repo.index().has_id(new_commit.id()));
mut_repo.add_head(&new_commit);
assert!(mut_repo.view().heads().contains(new_commit.id()));
assert!(mut_repo.index().has_id(new_commit.id()));
let repo = tx.commit();
assert!(repo.view().heads().contains(new_commit.id()));
assert!(repo.index().has_id(new_commit.id()));
let index_stats = repo.index().stats();
assert_eq!(index_stats.num_heads, 2);
assert_eq!(index_stats.num_commits, 3);
assert_eq!(index_stats.max_generation_number, 1);
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_add_head_ancestor(use_git: bool) {
// Test that MutableRepo::add_head() does not add a head if it's an ancestor of
// an existing head.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
let commit1 = graph_builder.initial_commit();
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
let _commit3 = graph_builder.commit_with_parents(&[&commit2]);
let repo = tx.commit();
let index_stats = repo.index().stats();
assert_eq!(index_stats.num_heads, 2);
assert_eq!(index_stats.num_commits, 5);
assert_eq!(index_stats.max_generation_number, 3);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
mut_repo.add_head(&commit1);
assert!(!mut_repo.view().heads().contains(commit1.id()));
let index_stats = mut_repo.index().stats();
assert_eq!(index_stats.num_heads, 2);
assert_eq!(index_stats.num_commits, 5);
assert_eq!(index_stats.max_generation_number, 3);
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_add_head_not_immediate_child(use_git: bool) {
// Test that MutableRepo::add_head() can be used for adding a head that is not
// an immediate child of a current head.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let initial = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
let repo = tx.commit();
// Create some commit outside of the repo by using a temporary transaction. Then
// add one of them as a head.
let mut tx = repo.start_transaction("test");
let rewritten = testutils::create_random_commit(&settings, &repo)
.set_change_id(initial.change_id().clone())
.set_predecessors(vec![initial.id().clone()])
.write_to_repo(tx.mut_repo());
let child = testutils::create_random_commit(&settings, &repo)
.set_parents(vec![rewritten.id().clone()])
.write_to_repo(tx.mut_repo());
tx.discard();
let index_stats = repo.index().stats();
assert_eq!(index_stats.num_heads, 2);
assert_eq!(index_stats.num_commits, 3);
assert_eq!(index_stats.max_generation_number, 1);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
mut_repo.add_head(&child);
assert!(mut_repo.view().heads().contains(initial.id()));
assert!(!mut_repo.view().heads().contains(rewritten.id()));
assert!(mut_repo.view().heads().contains(child.id()));
assert!(mut_repo.index().has_id(initial.id()));
assert!(mut_repo.index().has_id(rewritten.id()));
assert!(mut_repo.index().has_id(child.id()));
assert!(mut_repo.evolution().is_obsolete(initial.id()));
let index_stats = mut_repo.index().stats();
assert_eq!(index_stats.num_heads, 3);
assert_eq!(index_stats.num_commits, 5);
assert_eq!(index_stats.max_generation_number, 2);
tx.discard();
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_remove_head(use_git: bool) {
// Test that MutableRepo::remove_head() removes the head, and that it's still
// removed after commit. It should remain in the index, since we otherwise would
// have to reindex everything.
// TODO: Consider if it's better to have the index be exactly the commits
// reachable from the view's heads. We would probably want to add tombstones
// for commits no longer visible in that case so we don't have to reindex e.g.
// when the user does `jj op undo`.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
let commit1 = graph_builder.initial_commit();
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
let commit3 = graph_builder.commit_with_parents(&[&commit2]);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
assert!(mut_repo.view().heads().contains(commit3.id()));
mut_repo.remove_head(&commit3);
let heads = mut_repo.view().heads().clone();
assert!(!heads.contains(commit3.id()));
assert!(!heads.contains(commit2.id()));
assert!(!heads.contains(commit1.id()));
assert!(mut_repo.index().has_id(commit1.id()));
assert!(mut_repo.index().has_id(commit2.id()));
assert!(mut_repo.index().has_id(commit3.id()));
let repo = tx.commit();
let heads = repo.view().heads().clone();
assert!(!heads.contains(commit3.id()));
assert!(!heads.contains(commit2.id()));
assert!(!heads.contains(commit1.id()));
assert!(repo.index().has_id(commit1.id()));
assert!(repo.index().has_id(commit2.id()));
assert!(repo.index().has_id(commit3.id()));
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_remove_head_ancestor_git_ref(use_git: bool) {
// Test that MutableRepo::remove_head() does not leave the view with a git ref
// pointing to a commit that's not reachable by any head.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
let commit1 = graph_builder.initial_commit();
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
let commit3 = graph_builder.commit_with_parents(&[&commit1]);
let commit4 = graph_builder.commit_with_parents(&[&commit1]);
let commit5 = graph_builder.commit_with_parents(&[&commit2, &commit3, &commit4]);
tx.mut_repo().set_git_ref(
"refs/heads/main".to_string(),
RefTarget::Conflict {
removes: vec![commit2.id().clone()],
adds: vec![commit3.id().clone(), commit4.id().clone()],
},
);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let heads = mut_repo.view().heads().clone();
assert!(heads.contains(commit5.id()));
mut_repo.remove_head(&commit5);
let heads = mut_repo.view().heads().clone();
assert!(!heads.contains(commit5.id()));
assert!(heads.contains(commit4.id()));
assert!(heads.contains(commit3.id()));
assert!(heads.contains(commit2.id()));
assert!(!heads.contains(commit1.id()));
let repo = tx.commit();
let heads = repo.view().heads().clone();
assert!(!heads.contains(commit5.id()));
assert!(heads.contains(commit4.id()));
assert!(heads.contains(commit3.id()));
assert!(heads.contains(commit2.id()));
assert!(!heads.contains(commit1.id()));
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_add_public_head(use_git: bool) {
// Test that MutableRepo::add_public_head() adds the head, and that it's still
// there after commit.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let commit1 = testutils::create_random_commit(&settings, &repo).write_to_repo(tx.mut_repo());
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
mut_repo.add_public_head(&commit1);
assert!(mut_repo.view().public_heads().contains(commit1.id()));
let repo = tx.commit();
assert!(repo.view().public_heads().contains(commit1.id()));
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_add_public_head_ancestor(use_git: bool) {
// Test that MutableRepo::add_public_head() does not add a public head if it's
// an ancestor of an existing public head.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut graph_builder = CommitGraphBuilder::new(&settings, tx.mut_repo());
let commit1 = graph_builder.initial_commit();
let commit2 = graph_builder.commit_with_parents(&[&commit1]);
tx.mut_repo().add_public_head(&commit2);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
mut_repo.add_public_head(&commit1);
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
let repo = tx.commit();
assert!(!repo.view().public_heads().contains(commit1.id()));
}
#[test_case(false ; "local store")]
// #[test_case(true ; "git store")]
fn test_remove_public_head(use_git: bool) {
// Test that MutableRepo::remove_public_head() removes the head, and that it's
// still removed after commit.
let settings = testutils::user_settings();
let (_temp_dir, repo) = testutils::init_repo(&settings, use_git);
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
let commit1 = testutils::create_random_commit(&settings, &repo).write_to_repo(mut_repo);
mut_repo.add_public_head(&commit1);
let repo = tx.commit();
let mut tx = repo.start_transaction("test");
let mut_repo = tx.mut_repo();
assert!(mut_repo.view().public_heads().contains(commit1.id()));
mut_repo.remove_public_head(&commit1);
assert!(!mut_repo.view().public_heads().contains(commit1.id()));
let repo = tx.commit();
assert!(!repo.view().public_heads().contains(commit1.id()));
}