rdblue commented on code in PR #5450:
URL: https://github.com/apache/iceberg/pull/5450#discussion_r954205777
##########
core/src/test/java/org/apache/iceberg/TestTableMetadata.java:
##########
@@ -1235,6 +1248,47 @@ public void testUpdateSortOrder() {
sortedByX.sortOrder().fields().get(0).nullOrder());
}
+ @Test
+ public void testStatistics() {
+ Schema schema = new Schema(Types.NestedField.required(10, "x",
Types.StringType.get()));
+
+ TableMetadata meta =
+ TableMetadata.newTableMetadata(
+ schema, PartitionSpec.unpartitioned(), null, ImmutableMap.of());
+ Assert.assertEquals(
+ "Should default to no statistics files", ImmutableList.of(),
meta.statisticsFiles());
+ }
+
+ @Test
+ public void testSetStatistics() {
+ Schema schema = new Schema(Types.NestedField.required(10, "x",
Types.StringType.get()));
+
+ TableMetadata meta =
+ TableMetadata.newTableMetadata(
+ schema, PartitionSpec.unpartitioned(), null, ImmutableMap.of());
+
+ Assert.assertSame(
+ "Should detect no statistics to remove",
+ meta,
+ TableMetadata.buildFrom(meta).removeStatistics(42L).build());
Review Comment:
I don't think this really fits in a `testSetStatistics` method since you're
testing the default behavior of `removeStatistics`. I'd probably move this to a
different test method. I also don't see a test to check that `removeStatistics`
works without removing other stats files.
It would also be good to have a test to validate replacement behavior, since
`setStatistics` is idempotent.
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