diff options
author | 2018-02-08 15:32:00 -0800 | |
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committer | 2018-02-08 15:34:11 -0800 | |
commit | a729b9b4c3d7844a7d44934bf3365f92633c0a60 (patch) | |
tree | 6329f4baf5b0b83ea6e3bd577b78b8d49afea9f1 /src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java | |
parent | 0ab46f0dd95f735056add4dd8a90a76944b81d00 (diff) |
Replace path implementation.
Path and PathFragment have been replaced with String-based implementations. They are pretty similar, but each method is dissimilar enough that I did not feel sharing code was appropriate.
A summary of changes:
PATH
====
* Subsumes LocalPath (deleted, its tests repurposed)
* Use a simple string to back Path
* Path instances are no longer interned; Reference equality will no longer work
* Always normalized (same as before)
* Some operations will now be slower, like instance compares (which were previously just a reference check)
* Multiple identical paths will now consume more memory since they are not interned
PATH FRAGMENT
=============
* Use a simple string to back PathFragment
* No more segment arrays with interned strings
* Always normalized
* Remove isNormalized
* Replace some isNormalizied uses with containsUpLevelReferences() to check if path fragments try to escape their scope
* To check if user input is normalized, supply static methods on PathFragment to validate the string before constructing a PathFragment
* Because PathFragments are always normalized, we have to replace checks for literal "." from PathFragment#getPathString to PathFragment#getSafePathString. The latter returns "." for the empty string.
* The previous implementation supported efficient segment semantics (segment count, iterating over segments). This is now expensive since we do longer have a segment array.
ARTIFACT
========
* Remove Path instance. It is instead dynamically constructed on request. This is necessary to avoid this CL becoming a memory regression.
RELNOTES: None
PiperOrigin-RevId: 185062932
Diffstat (limited to 'src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java')
-rw-r--r-- | src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java b/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java index 656363333e..f9cc1a9031 100644 --- a/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java +++ b/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java @@ -175,11 +175,29 @@ public class FileSystemUtilsTest { @Test public void testRelativePath() throws IOException { createTestDirectoryTree(); - assertThat(relativePath(topDir, file1).getPathString()).isEqualTo("file-1"); - assertThat(relativePath(topDir, topDir).getPathString()).isEqualTo("."); - assertThat(relativePath(topDir, dirLink).getPathString()).isEqualTo("a-dir/inner-dir/dir-link"); - assertThat(relativePath(topDir, file4).getPathString()).isEqualTo("../file-4"); - assertThat(relativePath(innerDir, file4).getPathString()).isEqualTo("../../../file-4"); + assertThat( + relativePath(PathFragment.create("/top-dir"), PathFragment.create("/top-dir/file-1")) + .getPathString()) + .isEqualTo("file-1"); + assertThat( + relativePath(PathFragment.create("/top-dir"), PathFragment.create("/top-dir")) + .getPathString()) + .isEqualTo(""); + assertThat( + relativePath( + PathFragment.create("/top-dir"), + PathFragment.create("/top-dir/a-dir/inner-dir/dir-link")) + .getPathString()) + .isEqualTo("a-dir/inner-dir/dir-link"); + assertThat( + relativePath(PathFragment.create("/top-dir"), PathFragment.create("/file-4")) + .getPathString()) + .isEqualTo("../file-4"); + assertThat( + relativePath( + PathFragment.create("/top-dir/a-dir/inner-dir"), PathFragment.create("/file-4")) + .getPathString()) + .isEqualTo("../../../file-4"); } @Test |