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Fix flaky cache test #6373

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Fix flaky cache test #6373

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b6801e4
Fix flaky cache test
aw-andre Nov 14, 2025
6535c65
Update runtimes_cache_test.cpp
aw-andre Nov 15, 2025
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10 changes: 6 additions & 4 deletions toolchain/driver/runtimes_cache_test.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -609,10 +609,12 @@ TEST_F(RuntimesCacheTest, LookupWithManyStaleRuntimes) {
// Get the Unix-like inode of the directories so we can check whether
// subsequent lookups create a new directory.
auto runtimes1_inode = runtimes1.base_dir().Stat()->unix_inode();
auto stale_runtimes_0_inode =
stale_runtimes[0].base_dir().Stat()->unix_inode();
Comment on lines -612 to -613
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@josh11b josh11b Nov 17, 2025

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Removing this will no longer compile.

auto runtimes2_inode = runtimes2.base_dir().Stat()->unix_inode();

// Use the modification time for the stale runtime as comparing inodes gives a
// false failure when the filesystem reuses the inode.
auto stale_runtimes_0_mtime = stale_runtimes[0].base_dir().Stat()->mtime();

// Now adjust their age backwards in time by two years to make them very, very
// stale.
auto now = Filesystem::Clock::now();
Expand Down Expand Up @@ -640,8 +642,8 @@ TEST_F(RuntimesCacheTest, LookupWithManyStaleRuntimes) {
EXPECT_THAT(runtimes2.base_dir().Stat()->unix_inode(), Eq(runtimes2_inode));

// One of the stale runtimes should be freshly created though.
EXPECT_THAT(stale_runtimes_0.base_dir().Stat()->unix_inode(),
Ne(stale_runtimes_0_inode));
EXPECT_THAT(stale_runtimes_0.base_dir().Stat()->mtime(),
Ne(stale_runtimes_0_mtime));
}

TEST_F(RuntimesCacheTest, LookupWithTooManyRuntimes) {
Expand Down
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