RussellSpitzer commented on a change in pull request #3676:
URL: https://github.com/apache/iceberg/pull/3676#discussion_r827314942
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File path:
core/src/test/java/org/apache/iceberg/actions/TestBinPackStrategy.java
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@@ -138,6 +138,43 @@ public void testGroupingMinInputFilesInvalid() {
0, Iterables.size(grouped));
}
+ @Test
+ public void testGroupingMinInputFilesAsOne() {
+ RewriteStrategy strategy = defaultBinPack().options(ImmutableMap.of(
+ BinPackStrategy.MIN_INPUT_FILES, Integer.toString(1),
+ BinPackStrategy.MAX_FILE_SIZE_BYTES, Long.toString(3 * MB),
+ RewriteDataFiles.TARGET_FILE_SIZE_BYTES, Long.toString(2 * MB),
+ BinPackStrategy.MIN_FILE_SIZE_BYTES, Long.toString(MB),
+ BinPackStrategy.DELETE_FILE_THRESHOLD, Integer.toString(2)
+ ));
+
+ // single file within a group, with size within threshold and no deletes
should be considered as NOOP.
+ Iterable<FileScanTask> testFiles1 = filesOfSize(1);
+ Iterable<List<FileScanTask>> grouped1 =
strategy.planFileGroups(testFiles1);
+
+ Assert.assertEquals("Should plan 0 group, as 1 minInputFile with size
within threshold and no deletes should be " +
Review comment:
Is the comment above needed if we have this message? I think we can drop
the comment since you explain the test here in the same words. Minor suggestion
on message:
"Should plan 0 groups, 1 file is too small but no deletes are present so
rewriting is a NOOP"
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