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Improve pretty-print diffing of Datastore entities

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This removes the countless lines of the form "[null, []]" in registry_tool diffs
that are an artifact of the way we handle nulls in Objectify.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=133409440
This commit is contained in:
mcilwain 2016-09-16 11:43:38 -07:00 • committed by Ben McIlwain
parent 841be34d18
commit aa7c05cb8b
6 changed files with 53 additions and 24 deletions
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15
javatests/google/registry/util/DiffUtilsTest.java
View file

@ -15,9 +15,12 @@
package google.registry.util;
import static com.google.common.truth.Truth.assertThat;
import static google.registry.util.DiffUtils.prettyPrintEntityDeepDiff;
import static google.registry.util.DiffUtils.prettyPrintSetDiff;
import com.google.common.collect.ImmutableSet;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@ -57,6 +60,18 @@ public class DiffUtilsTest {
.isEqualTo("\n ADDED: [y, z]\n REMOVED: [b, c]\n FINAL CONTENTS: [a, y, z]");
}
@Test
public void test_emptyToNullCollection_doesntDisplay() {
Map<String, Object> mapA = new HashMap<String, Object>();
mapA.put("a", "jim");
mapA.put("b", null);
Map<String, Object> mapB = new HashMap<String, Object>();
mapB.put("a", "tim");
mapB.put("b", ImmutableSet.of());
// This ensures that it is not outputting a diff of [b -> [null, []].
assertThat(prettyPrintEntityDeepDiff(mapA, mapB)).isEqualTo("a -> [jim, tim]\n");
}
@Test
public void test_prettyPrintSetDiff_addedAndRemovedElements_objects() {
DummyObject a = DummyObject.create("a");