Baunsgaard commented on code in PR #15173:
URL: https://github.com/apache/iceberg/pull/15173#discussion_r2746041601
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core/src/test/java/org/apache/iceberg/TestRewriteTablePathUtil.java:
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@@ -80,4 +81,89 @@ public void testStagingPathWithNoMiddlePart() {
RewriteTablePathUtil.stagingPath(fileDirectlyUnderPrefix,
sourcePrefix, stagingDir);
assertThat(newMethodResult).isEqualTo("/staging/file.parquet");
}
+
+ @Test
+ public void testRelativizePathUnderPrefix() {
+ // Normal case: path is under prefix
+ assertThat(RewriteTablePathUtil.relativize("/a/b/c",
"/a")).isEqualTo("b/c");
+ assertThat(RewriteTablePathUtil.relativize("/a/b", "/a")).isEqualTo("b");
+
assertThat(RewriteTablePathUtil.relativize("/source/table/data/file.parquet",
"/source/table"))
+ .isEqualTo("data/file.parquet");
+ }
+
+ @Test
+ public void testRelativizePathEqualsPrefix() {
+ // Edge case: path equals prefix exactly (issue #15172)
+ assertThat(RewriteTablePathUtil.relativize("/a", "/a")).isEqualTo("");
+ assertThat(RewriteTablePathUtil.relativize("/source/table",
"/source/table")).isEqualTo("");
+ assertThat(RewriteTablePathUtil.relativize("s3://bucket/warehouse",
"s3://bucket/warehouse"))
+ .isEqualTo("");
+ }
+
+ @Test
+ public void testRelativizePathEqualsPrefixWithTrailingSeparator() {
+ // Edge case: path equals prefix with trailing separator on path
+ assertThat(RewriteTablePathUtil.relativize("/a/", "/a")).isEqualTo("");
+ assertThat(RewriteTablePathUtil.relativize("/source/table/",
"/source/table")).isEqualTo("");
+
+ // Edge case: prefix has trailing separator
+ assertThat(RewriteTablePathUtil.relativize("/a", "/a/")).isEqualTo("");
Review Comment:
You're right! Instead of removing the test case, I've kept it as a negative
test that asserts it throws the exception.
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