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Subject [GitHub] [incubator-hudi] xushiyan commented on a change in pull request #1436: [HUDI-711] Refactor exporter main logic
Date Wed, 25 Mar 2020 03:28:26 GMT
xushiyan commented on a change in pull request #1436: [HUDI-711] Refactor exporter main logic
URL: https://github.com/apache/incubator-hudi/pull/1436#discussion_r397590026
 
 

 ##########
 File path: hudi-utilities/src/test/java/org/apache/hudi/utilities/TestHoodieSnapshotExporter.java
 ##########
 @@ -159,18 +161,85 @@ public void testExportAsHudi() throws IOException {
       assertTrue(dfs.exists(new Path(partition + "/.hoodie_partition_metadata")));
       assertTrue(dfs.exists(new Path(targetPath + "/_SUCCESS")));
     }
+  }
+
+  public static class TestHoodieSnapshotExporterForEarlyAbort extends ExporterTestHarness
{
+
+    private HoodieSnapshotExporter.Config cfg;
+
+    @Before
+    public void setUp() throws Exception {
+      super.setUp();
+      cfg = new Config();
+      cfg.sourceBasePath = sourcePath;
+      cfg.targetOutputPath = targetPath;
+      cfg.outputFormat = OutputFormatValidator.HUDI;
+    }
 
     @Test
-    public void testExportEmptyDataset() throws IOException {
+    public void testExportWhenTargetPathExists() throws IOException {
+      // make target output path present
+      dfs.mkdirs(new Path(targetPath));
+
+      // export
+      Throwable t = null;
+      try {
+        new HoodieSnapshotExporter().export(jsc, cfg);
+      } catch (Exception e) {
+        t = e;
+      } finally {
+        assertNotNull(t);
+        assertTrue(t instanceof HoodieSnapshotExporterException);
+        assertEquals("The target output path already exists.", t.getMessage());
 
 Review comment:
   @leesf The reason of checking the assertion in `finally` is to cover the case when exporter
does not throw exception, which should be deemed as failed test. Putting in catch block may
still pass in that case. 😄 

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