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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ahat;
import com.android.ahat.heapdump.DiffFields;
import com.android.ahat.heapdump.DiffedFieldValue;
import com.android.ahat.heapdump.FieldValue;
import com.android.ahat.heapdump.Value;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
public class DiffFieldsTest {
@Test
public void normalMatchedDiffedFieldValues() {
FieldValue normal1 = new FieldValue("name", "type", new Value(1));
FieldValue normal2 = new FieldValue("name", "type", new Value(2));
DiffedFieldValue x = DiffedFieldValue.matched(normal1, normal2);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertEquals(new Value(1), x.current);
assertEquals(new Value(2), x.baseline);
assertEquals(DiffedFieldValue.Status.MATCHED, x.status);
}
@Test
public void nulledMatchedDiffedFieldValues() {
FieldValue normal = new FieldValue("name", "type", new Value(1));
FieldValue nulled = new FieldValue("name", "type", null);
DiffedFieldValue x = DiffedFieldValue.matched(normal, nulled);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertEquals(new Value(1), x.current);
assertNull(x.baseline);
assertEquals(DiffedFieldValue.Status.MATCHED, x.status);
DiffedFieldValue y = DiffedFieldValue.matched(nulled, normal);
assertEquals("name", y.name);
assertEquals("type", y.type);
assertNull(y.current);
assertEquals(new Value(1), y.baseline);
assertEquals(DiffedFieldValue.Status.MATCHED, y.status);
}
@Test
public void normalAddedDiffedFieldValues() {
FieldValue normal = new FieldValue("name", "type", new Value(1));
DiffedFieldValue x = DiffedFieldValue.added(normal);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertEquals(new Value(1), x.current);
assertEquals(DiffedFieldValue.Status.ADDED, x.status);
}
@Test
public void nulledAddedDiffedFieldValues() {
FieldValue nulled = new FieldValue("name", "type", null);
DiffedFieldValue x = DiffedFieldValue.added(nulled);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertNull(x.current);
assertEquals(DiffedFieldValue.Status.ADDED, x.status);
}
@Test
public void normalDeletedDiffedFieldValues() {
FieldValue normal = new FieldValue("name", "type", new Value(1));
DiffedFieldValue x = DiffedFieldValue.deleted(normal);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertEquals(new Value(1), x.baseline);
assertEquals(DiffedFieldValue.Status.DELETED, x.status);
}
@Test
public void nulledDeletedDiffedFieldValues() {
FieldValue nulled = new FieldValue("name", "type", null);
DiffedFieldValue x = DiffedFieldValue.deleted(nulled);
assertEquals("name", x.name);
assertEquals("type", x.type);
assertNull(x.baseline);
assertEquals(DiffedFieldValue.Status.DELETED, x.status);
}
@Test
public void basicDiff() {
List<FieldValue> a = new ArrayList<FieldValue>();
a.add(new FieldValue("n0", "t0", null));
a.add(new FieldValue("n2", "t2", null));
a.add(new FieldValue("n3", "t3", null));
a.add(new FieldValue("n4", "t4", null));
a.add(new FieldValue("n5", "t5", null));
a.add(new FieldValue("n6", "t6", null));
List<FieldValue> b = new ArrayList<FieldValue>();
b.add(new FieldValue("n0", "t0", null));
b.add(new FieldValue("n1", "t1", null));
b.add(new FieldValue("n2", "t2", null));
b.add(new FieldValue("n3", "t3", null));
b.add(new FieldValue("n5", "t5", null));
b.add(new FieldValue("n6", "t6", null));
b.add(new FieldValue("n7", "t7", null));
// Note: The expected result makes assumptions about the implementation of
// field diff to match the order of the returned fields. If the
// implementation changes, this test may need to be generalized to accept
// the new implementation.
List<DiffedFieldValue> expected = new ArrayList<DiffedFieldValue>();
expected.add(DiffedFieldValue.matched(a.get(0), b.get(0)));
expected.add(DiffedFieldValue.deleted(b.get(1)));
expected.add(DiffedFieldValue.matched(a.get(1), b.get(2)));
expected.add(DiffedFieldValue.matched(a.get(2), b.get(3)));
expected.add(DiffedFieldValue.added(a.get(3)));
expected.add(DiffedFieldValue.matched(a.get(4), b.get(4)));
expected.add(DiffedFieldValue.matched(a.get(5), b.get(5)));
expected.add(DiffedFieldValue.deleted(b.get(6)));
List<DiffedFieldValue> diffed = DiffFields.diff(a, b);
assertEquals(expected, diffed);
}
@Test
public void reorderedDiff() {
List<FieldValue> a = new ArrayList<FieldValue>();
a.add(new FieldValue("n0", "t0", null));
a.add(new FieldValue("n1", "t1", null));
a.add(new FieldValue("n2", "t2", null));
a.add(new FieldValue("n3", "t3", null));
a.add(new FieldValue("n4", "t4", null));
a.add(new FieldValue("n5", "t5", null));
a.add(new FieldValue("n6", "t6", null));
List<FieldValue> b = new ArrayList<FieldValue>();
b.add(new FieldValue("n4", "t4", null));
b.add(new FieldValue("n1", "t1", null));
b.add(new FieldValue("n3", "t3", null));
b.add(new FieldValue("n0", "t0", null));
b.add(new FieldValue("n5", "t5", null));
b.add(new FieldValue("n2", "t2", null));
b.add(new FieldValue("n6", "t6", null));
// Note: The expected result makes assumptions about the implementation of
// field diff to match the order of the returned fields. If the
// implementation changes, this test may need to be generalized to accept
// the new implementation.
List<DiffedFieldValue> expected = new ArrayList<DiffedFieldValue>();
expected.add(DiffedFieldValue.matched(a.get(0), b.get(3)));
expected.add(DiffedFieldValue.matched(a.get(1), b.get(1)));
expected.add(DiffedFieldValue.matched(a.get(2), b.get(5)));
expected.add(DiffedFieldValue.matched(a.get(3), b.get(2)));
expected.add(DiffedFieldValue.matched(a.get(4), b.get(0)));
expected.add(DiffedFieldValue.matched(a.get(5), b.get(4)));
expected.add(DiffedFieldValue.matched(a.get(6), b.get(6)));
List<DiffedFieldValue> diffed = DiffFields.diff(a, b);
assertEquals(expected, diffed);
}
}
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