java/core/src/test/java/com/google/protobuf/ProtobufArrayListTest.java - third_party/protobuf - Git at Google

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.  All rights reserved.
 // https://developers.google.com/protocol-buffers/
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
 // in the documentation and/or other materials provided with the
 // distribution.
 //     * Neither the name of Google Inc. nor the names of its
 // contributors may be used to endorse or promote products derived from
 // this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 package com.google.protobuf;

 import static java.util.Arrays.asList;

 import java.util.Collections;
 import java.util.ConcurrentModificationException;
 import java.util.Iterator;
 import java.util.List;
 import junit.framework.TestCase;

 /** Tests for {@link ProtobufArrayList}. */
 public class ProtobufArrayListTest extends TestCase {

   private static final ProtobufArrayList<Integer> UNARY_LIST = newImmutableProtoArrayList(1);
   private static final ProtobufArrayList<Integer> TERTIARY_LIST =
       newImmutableProtoArrayList(1, 2, 3);

   private ProtobufArrayList<Integer> list;

   @Override
   protected void setUp() throws Exception {
     list = new ProtobufArrayList<Integer>();
   }

   public void testEmptyListReturnsSameInstance() {
     assertSame(ProtobufArrayList.emptyList(), ProtobufArrayList.emptyList());
   }

   public void testEmptyListIsImmutable() {
     assertImmutable(ProtobufArrayList.<Integer>emptyList());
   }

   public void testModificationWithIteration() {
     list.addAll(asList(1, 2, 3, 4));
     Iterator<Integer> iterator = list.iterator();
     assertEquals(4, list.size());
     assertEquals(1, (int) list.get(0));
     assertEquals(1, (int) iterator.next());

     list.remove(0);
     try {
       iterator.next();
       fail();
     } catch (ConcurrentModificationException e) {
       // expected
     }

     iterator = list.iterator();
     list.set(0, 1);
     try {
       iterator.next();
       fail();
     } catch (ConcurrentModificationException e) {
       // expected
     }

     iterator = list.iterator();
     list.add(0, 0);
     try {
       iterator.next();
       fail();
     } catch (ConcurrentModificationException e) {
       // expected
     }
   }

   public void testMakeImmutable() {
     list.add(2);
     list.add(4);
     list.add(6);
     list.add(8);
     list.makeImmutable();
     assertImmutable(list);
   }

   public void testRemove() {
     list.addAll(TERTIARY_LIST);
     assertEquals(1, (int) list.remove(0));
     assertEquals(asList(2, 3), list);

     assertTrue(list.remove(Integer.valueOf(3)));
     assertEquals(asList(2), list);

     assertFalse(list.remove(Integer.valueOf(3)));
     assertEquals(asList(2), list);

     assertEquals(2, (int) list.remove(0));
     assertEquals(asList(), list);

     try {
       list.remove(-1);
       fail();
     } catch (IndexOutOfBoundsException e) {
       // expected
     }

     try {
       list.remove(0);
     } catch (IndexOutOfBoundsException e) {
       // expected
     }
   }

   public void testGet() {
     assertEquals(1, (int) TERTIARY_LIST.get(0));
     assertEquals(2, (int) TERTIARY_LIST.get(1));
     assertEquals(3, (int) TERTIARY_LIST.get(2));

     try {
       TERTIARY_LIST.get(-1);
       fail();
     } catch (IndexOutOfBoundsException e) {
       // expected
     }

     try {
       TERTIARY_LIST.get(3);
       fail();
     } catch (IndexOutOfBoundsException e) {
       // expected
     }
   }

   public void testSet() {
     list.add(2);
     list.add(4);

     assertEquals(2, (int) list.set(0, 3));
     assertEquals(3, (int) list.get(0));

     assertEquals(4, (int) list.set(1, 0));
     assertEquals(0, (int) list.get(1));

     try {
       list.set(-1, 0);
       fail();
     } catch (IndexOutOfBoundsException e) {
       // expected
     }

     try {
       list.set(2, 0);
       fail();
     } catch (IndexOutOfBoundsException e) {
       // expected
     }
   }

   public void testAdd() {
     assertEquals(0, list.size());

     assertTrue(list.add(2));
     assertEquals(asList(2), list);

     assertTrue(list.add(3));
     list.add(0, 4);
     assertEquals(asList(4, 2, 3), list);

     list.add(0, 1);
     list.add(0, 0);
     // Force a resize by getting up to 11 elements.
     for (int i = 0; i < 6; i++) {
       list.add(Integer.valueOf(5 + i));
     }
     assertEquals(asList(0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10), list);

     try {
       list.add(-1, 5);
     } catch (IndexOutOfBoundsException e) {
       // expected
     }

     try {
       list.add(4, 5);
     } catch (IndexOutOfBoundsException e) {
       // expected
     }
   }

   public void testAddAll() {
     assertEquals(0, list.size());

     assertTrue(list.addAll(Collections.singleton(1)));
     assertEquals(1, list.size());
     assertEquals(1, (int) list.get(0));

     assertTrue(list.addAll(asList(2, 3, 4, 5, 6)));
     assertEquals(asList(1, 2, 3, 4, 5, 6), list);

     assertTrue(list.addAll(TERTIARY_LIST));
     assertEquals(asList(1, 2, 3, 4, 5, 6, 1, 2, 3), list);

     assertFalse(list.addAll(Collections.<Integer>emptyList()));
     assertFalse(list.addAll(IntArrayList.emptyList()));
   }

   public void testSize() {
     assertEquals(0, ProtobufArrayList.emptyList().size());
     assertEquals(1, UNARY_LIST.size());
     assertEquals(3, TERTIARY_LIST.size());

     list.add(3);
     list.add(4);
     list.add(6);
     list.add(8);
     assertEquals(4, list.size());

     list.remove(0);
     assertEquals(3, list.size());

     list.add(17);
     assertEquals(4, list.size());
   }

   private void assertImmutable(List<Integer> list) {
     if (list.contains(1)) {
       throw new RuntimeException("Cannot test the immutability of lists that contain 1.");
     }

     try {
       list.add(1);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.add(0, 1);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(Collections.<Integer>emptyList());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(Collections.singletonList(1));
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(new ProtobufArrayList<Integer>());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(UNARY_LIST);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(0, Collections.singleton(1));
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(0, UNARY_LIST);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.addAll(0, Collections.<Integer>emptyList());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.clear();
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.remove(1);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.remove(new Object());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.removeAll(Collections.emptyList());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.removeAll(Collections.singleton(1));
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.removeAll(UNARY_LIST);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.retainAll(Collections.emptyList());
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.retainAll(Collections.singleton(1));
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.retainAll(UNARY_LIST);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }

     try {
       list.set(0, 0);
       fail();
     } catch (UnsupportedOperationException e) {
       // expected
     }
   }

   private static ProtobufArrayList<Integer> newImmutableProtoArrayList(int... elements) {
     ProtobufArrayList<Integer> list = new ProtobufArrayList<Integer>();
     for (int element : elements) {
       list.add(element);
     }
     list.makeImmutable();
     return list;
   }
 }
	// Protocol Buffers - Google's data interchange format
	// Copyright 2008 Google Inc. All rights reserved.
	// https://developers.google.com/protocol-buffers/
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are
	// met:
	//
	// * Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above
	// copyright notice, this list of conditions and the following disclaimer
	// in the documentation and/or other materials provided with the
	// distribution.
	// * Neither the name of Google Inc. nor the names of its
	// contributors may be used to endorse or promote products derived from
	// this software without specific prior written permission.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	package com.google.protobuf;

	import static java.util.Arrays.asList;

	import java.util.Collections;
	import java.util.ConcurrentModificationException;
	import java.util.Iterator;
	import java.util.List;
	import junit.framework.TestCase;

	/** Tests for {@link ProtobufArrayList}. */
	public class ProtobufArrayListTest extends TestCase {

	private static final ProtobufArrayList<Integer> UNARY_LIST = newImmutableProtoArrayList(1);
	private static final ProtobufArrayList<Integer> TERTIARY_LIST =
	newImmutableProtoArrayList(1, 2, 3);

	private ProtobufArrayList<Integer> list;

	@Override
	protected void setUp() throws Exception {
	list = new ProtobufArrayList<Integer>();
	}

	public void testEmptyListReturnsSameInstance() {
	assertSame(ProtobufArrayList.emptyList(), ProtobufArrayList.emptyList());
	}

	public void testEmptyListIsImmutable() {
	assertImmutable(ProtobufArrayList.<Integer>emptyList());
	}

	public void testModificationWithIteration() {
	list.addAll(asList(1, 2, 3, 4));
	Iterator<Integer> iterator = list.iterator();
	assertEquals(4, list.size());
	assertEquals(1, (int) list.get(0));
	assertEquals(1, (int) iterator.next());

	list.remove(0);
	try {
	iterator.next();
	fail();
	} catch (ConcurrentModificationException e) {
	// expected
	}

	iterator = list.iterator();
	list.set(0, 1);
	try {
	iterator.next();
	fail();
	} catch (ConcurrentModificationException e) {
	// expected
	}

	iterator = list.iterator();
	list.add(0, 0);
	try {
	iterator.next();
	fail();
	} catch (ConcurrentModificationException e) {
	// expected
	}
	}

	public void testMakeImmutable() {
	list.add(2);
	list.add(4);
	list.add(6);
	list.add(8);
	list.makeImmutable();
	assertImmutable(list);
	}

	public void testRemove() {
	list.addAll(TERTIARY_LIST);
	assertEquals(1, (int) list.remove(0));
	assertEquals(asList(2, 3), list);

	assertTrue(list.remove(Integer.valueOf(3)));
	assertEquals(asList(2), list);

	assertFalse(list.remove(Integer.valueOf(3)));
	assertEquals(asList(2), list);

	assertEquals(2, (int) list.remove(0));
	assertEquals(asList(), list);

	try {
	list.remove(-1);
	fail();
	} catch (IndexOutOfBoundsException e) {
	// expected
	}

	try {
	list.remove(0);
	} catch (IndexOutOfBoundsException e) {
	// expected
	}
	}

	public void testGet() {
	assertEquals(1, (int) TERTIARY_LIST.get(0));
	assertEquals(2, (int) TERTIARY_LIST.get(1));
	assertEquals(3, (int) TERTIARY_LIST.get(2));

	try {
	TERTIARY_LIST.get(-1);
	fail();
	} catch (IndexOutOfBoundsException e) {
	// expected
	}

	try {
	TERTIARY_LIST.get(3);
	fail();
	} catch (IndexOutOfBoundsException e) {
	// expected
	}
	}

	public void testSet() {
	list.add(2);
	list.add(4);

	assertEquals(2, (int) list.set(0, 3));
	assertEquals(3, (int) list.get(0));

	assertEquals(4, (int) list.set(1, 0));
	assertEquals(0, (int) list.get(1));

	try {
	list.set(-1, 0);
	fail();
	} catch (IndexOutOfBoundsException e) {
	// expected
	}

	try {
	list.set(2, 0);
	fail();
	} catch (IndexOutOfBoundsException e) {
	// expected
	}
	}

	public void testAdd() {
	assertEquals(0, list.size());

	assertTrue(list.add(2));
	assertEquals(asList(2), list);

	assertTrue(list.add(3));
	list.add(0, 4);
	assertEquals(asList(4, 2, 3), list);

	list.add(0, 1);
	list.add(0, 0);
	// Force a resize by getting up to 11 elements.
	for (int i = 0; i < 6; i++) {
	list.add(Integer.valueOf(5 + i));
	}
	assertEquals(asList(0, 1, 4, 2, 3, 5, 6, 7, 8, 9, 10), list);

	try {
	list.add(-1, 5);
	} catch (IndexOutOfBoundsException e) {
	// expected
	}

	try {
	list.add(4, 5);
	} catch (IndexOutOfBoundsException e) {
	// expected
	}
	}

	public void testAddAll() {
	assertEquals(0, list.size());

	assertTrue(list.addAll(Collections.singleton(1)));
	assertEquals(1, list.size());
	assertEquals(1, (int) list.get(0));

	assertTrue(list.addAll(asList(2, 3, 4, 5, 6)));
	assertEquals(asList(1, 2, 3, 4, 5, 6), list);

	assertTrue(list.addAll(TERTIARY_LIST));
	assertEquals(asList(1, 2, 3, 4, 5, 6, 1, 2, 3), list);

	assertFalse(list.addAll(Collections.<Integer>emptyList()));
	assertFalse(list.addAll(IntArrayList.emptyList()));
	}

	public void testSize() {
	assertEquals(0, ProtobufArrayList.emptyList().size());
	assertEquals(1, UNARY_LIST.size());
	assertEquals(3, TERTIARY_LIST.size());

	list.add(3);
	list.add(4);
	list.add(6);
	list.add(8);
	assertEquals(4, list.size());

	list.remove(0);
	assertEquals(3, list.size());

	list.add(17);
	assertEquals(4, list.size());
	}

	private void assertImmutable(List<Integer> list) {
	if (list.contains(1)) {
	throw new RuntimeException("Cannot test the immutability of lists that contain 1.");
	}

	try {
	list.add(1);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.add(0, 1);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(Collections.<Integer>emptyList());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(Collections.singletonList(1));
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(new ProtobufArrayList<Integer>());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(UNARY_LIST);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(0, Collections.singleton(1));
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(0, UNARY_LIST);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.addAll(0, Collections.<Integer>emptyList());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.clear();
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.remove(1);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.remove(new Object());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.removeAll(Collections.emptyList());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.removeAll(Collections.singleton(1));
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.removeAll(UNARY_LIST);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.retainAll(Collections.emptyList());
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.retainAll(Collections.singleton(1));
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.retainAll(UNARY_LIST);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}

	try {
	list.set(0, 0);
	fail();
	} catch (UnsupportedOperationException e) {
	// expected
	}
	}

	private static ProtobufArrayList<Integer> newImmutableProtoArrayList(int... elements) {
	ProtobufArrayList<Integer> list = new ProtobufArrayList<Integer>();
	for (int element : elements) {
	list.add(element);
	}
	list.makeImmutable();
	return list;
	}
	}