content: /*
   * 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 asStringCharArray() throws IOException {
      TestDump dump = TestDump.getTestDump();
      Instance str = (Instance)dump.getDumpedThing("charArray");
      assertEquals("char thing", 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 asStringCharArrayTruncated() throws IOException {
      TestDump dump = TestDump.getTestDump();
      Instance str = (Instance)dump.getDumpedThing("charArray");
      assertEquals("char ", 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 asStringCharArrayExactMax() throws IOException {
      TestDump dump = TestDump.getTestDump();
      Instance str = (Instance)dump.getDumpedThing("charArray");
      assertEquals("char thing", InstanceUtils.asString(str, 10));
    }
  
    @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 asStringCharArrayNotTruncated() throws IOException {
      TestDump dump = TestDump.getTestDump();
      Instance str = (Instance)dump.getDumpedThing("charArray");
      assertEquals("char thing", 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 asStringCharArrayNegativeMax() throws IOException {
      TestDump dump = TestDump.getTestDump();
      Instance str = (Instance)dump.getDumpedThing("charArray");
      assertEquals("char thing", 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));
    }
  }
  