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/*
* Copyright (C) 2015 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.tools.perflib.heap.Instance;
import java.io.IOException;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import org.junit.Test;
public class InstanceUtilsTest {
@Test
public void asStringBasic() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance str = (Instance)dump.getDumpedThing("basicString");
assertEquals("hello, world", InstanceUtils.asString(str));
}
@Test
public void asStringTruncated() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance str = (Instance)dump.getDumpedThing("basicString");
assertEquals("hello", InstanceUtils.asString(str, 5));
}
@Test
public void asStringExactMax() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance str = (Instance)dump.getDumpedThing("basicString");
assertEquals("hello, world", InstanceUtils.asString(str, 12));
}
@Test
public void asStringNotTruncated() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance str = (Instance)dump.getDumpedThing("basicString");
assertEquals("hello, world", InstanceUtils.asString(str, 50));
}
@Test
public void asStringNegativeMax() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance str = (Instance)dump.getDumpedThing("basicString");
assertEquals("hello, world", InstanceUtils.asString(str, -3));
}
@Test
public void asStringNull() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance obj = (Instance)dump.getDumpedThing("nullString");
assertNull(InstanceUtils.asString(obj));
}
@Test
public void asStringNotString() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance obj = (Instance)dump.getDumpedThing("anObject");
assertNotNull(obj);
assertNull(InstanceUtils.asString(obj));
}
@Test
public void basicReference() throws IOException {
TestDump dump = TestDump.getTestDump();
Instance pref = (Instance)dump.getDumpedThing("aPhantomReference");
Instance wref = (Instance)dump.getDumpedThing("aWeakReference");
Instance referent = (Instance)dump.getDumpedThing("anObject");
assertNotNull(pref);
assertNotNull(wref);
assertNotNull(referent);
assertEquals(referent, InstanceUtils.getReferent(pref));
assertEquals(referent, InstanceUtils.getReferent(wref));
assertNull(InstanceUtils.getReferent(referent));
}
}
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