shvachko commented on a change in pull request #2260:
URL: https://github.com/apache/hadoop/pull/2260#discussion_r644407043
##########
File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/ViewFileSystemBaseTest.java
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@@ -1428,4 +1430,45 @@ public void testGetContentSummaryWithFileInLocalFS()
throws Exception {
summaryAfter.getLength());
}
}
+
+ @Test
+ public void testTargetFileSystemLazyInitialization() throws Exception {
+ final String clusterName = "cluster" + new Random().nextInt();
+ Configuration config = new Configuration(conf);
+ config.setBoolean(CONFIG_VIEWFS_ENABLE_INNER_CACHE, false);
+ config.setClass("fs.mockfs.impl",
+ TestChRootedFileSystem.MockFileSystem.class, FileSystem.class);
+ ConfigUtil.addLink(config, clusterName, "/user",
+ URI.create("mockfs://mockauth1/mockpath"));
+ ConfigUtil.addLink(config, clusterName,
+ "/mock", URI.create("mockfs://mockauth/mockpath"));
+
+ final int cacheSize = TestFileUtil.getCacheSize();
Review comment:
You can call `closeAll()` here, which clears the cache completely. And
the you can compare with 0 in the assert.
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