zhuzhurk commented on a change in pull request #9950: [FLINK-14464][runtime]
Introduce the AbstractUserClassPathJobGraphRetriever
URL: https://github.com/apache/flink/pull/9950#discussion_r339283797
##########
File path: flink-core/src/test/java/org/apache/flink/util/FileUtilsTest.java
##########
@@ -259,6 +267,67 @@ public void testCompression() throws IOException {
assertDirEquals(compressDir.resolve(originalDir),
extractDir.resolve(originalDir));
}
+ @Test
+ public void testListFilesInPathWithoutAnyFileReturnEmptyList() throws
IOException {
+ final java.nio.file.Path testDir =
tmp.newFolder("_test_0").toPath();
+
+ assertTrue(Collections.<File>emptyList() ==
+ FileUtils.listFilesInPath(testDir.toFile(), f ->
f.getName().endsWith(".jar")));
Review comment:
```suggestion
assertTrue(assertTrue(FileUtils.listFilesInPath(testDir.toFile(), f ->
f.getName().endsWith(".jar")).isEmpty());
```
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