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Diffstat (limited to 'java/src/test/java/com/google/protobuf/UnmodifiableLazyStringListTest.java')
-rw-r--r-- | java/src/test/java/com/google/protobuf/UnmodifiableLazyStringListTest.java | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/java/src/test/java/com/google/protobuf/UnmodifiableLazyStringListTest.java b/java/src/test/java/com/google/protobuf/UnmodifiableLazyStringListTest.java new file mode 100644 index 0000000..b1c75fc --- /dev/null +++ b/java/src/test/java/com/google/protobuf/UnmodifiableLazyStringListTest.java @@ -0,0 +1,227 @@ +// 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 junit.framework.TestCase; + +import java.util.Iterator; +import java.util.List; +import java.util.ListIterator; + +/** + * Tests for {@link UnmodifiableLazyStringList}. + * + * @author jonp@google.com (Jon Perlow) + */ +public class UnmodifiableLazyStringListTest extends TestCase { + + private static String STRING_A = "A"; + private static String STRING_B = "B"; + private static String STRING_C = "C"; + + private static ByteString BYTE_STRING_A = ByteString.copyFromUtf8("A"); + private static ByteString BYTE_STRING_B = ByteString.copyFromUtf8("B"); + private static ByteString BYTE_STRING_C = ByteString.copyFromUtf8("C"); + + public void testReadOnlyMethods() { + LazyStringArrayList rawList = createSampleList(); + UnmodifiableLazyStringList list = new UnmodifiableLazyStringList(rawList); + assertEquals(3, list.size()); + assertSame(STRING_A, list.get(0)); + assertSame(STRING_B, list.get(1)); + assertSame(STRING_C, list.get(2)); + assertEquals(BYTE_STRING_A, list.getByteString(0)); + assertEquals(BYTE_STRING_B, list.getByteString(1)); + assertEquals(BYTE_STRING_C, list.getByteString(2)); + + List<ByteString> byteStringList = list.asByteStringList(); + assertSame(list.getByteString(0), byteStringList.get(0)); + assertSame(list.getByteString(1), byteStringList.get(1)); + assertSame(list.getByteString(2), byteStringList.get(2)); + } + + public void testModifyMethods() { + LazyStringArrayList rawList = createSampleList(); + UnmodifiableLazyStringList list = new UnmodifiableLazyStringList(rawList); + + try { + list.remove(0); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + + try { + list.add(STRING_B); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + + try { + list.set(1, STRING_B); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + + List<ByteString> byteStringList = list.asByteStringList(); + try { + byteStringList.remove(0); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + assertEquals(3, byteStringList.size()); + + try { + byteStringList.add(BYTE_STRING_B); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + assertEquals(3, byteStringList.size()); + + try { + byteStringList.set(1, BYTE_STRING_B); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + assertEquals(3, list.size()); + assertEquals(3, byteStringList.size()); + } + + public void testIterator() { + LazyStringArrayList rawList = createSampleList(); + UnmodifiableLazyStringList list = new UnmodifiableLazyStringList(rawList); + + Iterator<String> iter = list.iterator(); + int count = 0; + while (iter.hasNext()) { + iter.next(); + count++; + try { + iter.remove(); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + } + assertEquals(3, count); + + List<ByteString> byteStringList = list.asByteStringList(); + Iterator<ByteString> byteIter = byteStringList.iterator(); + count = 0; + while (byteIter.hasNext()) { + byteIter.next(); + count++; + try { + byteIter.remove(); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + } + assertEquals(3, count); + } + + public void testListIterator() { + LazyStringArrayList rawList = createSampleList(); + UnmodifiableLazyStringList list = new UnmodifiableLazyStringList(rawList); + + ListIterator<String> iter = list.listIterator(); + int count = 0; + while (iter.hasNext()) { + iter.next(); + count++; + try { + iter.remove(); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + try { + iter.set("bar"); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + try { + iter.add("bar"); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + } + assertEquals(3, count); + + List<ByteString> byteStringList = list.asByteStringList(); + ListIterator<ByteString> byteIter = byteStringList.listIterator(); + count = 0; + while (byteIter.hasNext()) { + byteIter.next(); + count++; + try { + byteIter.remove(); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + try { + byteIter.set(BYTE_STRING_A); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + try { + byteIter.add(BYTE_STRING_A); + fail(); + } catch (UnsupportedOperationException e) { + // expected + } + } + assertEquals(3, count); + } + + private LazyStringArrayList createSampleList() { + LazyStringArrayList rawList = new LazyStringArrayList(); + rawList.add(STRING_A); + rawList.add(STRING_B); + rawList.add(STRING_C); + return rawList; + } +} |