| /* |
| * Copyright (C) 2011 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.dex; |
| |
| import com.android.dex.util.ByteArrayByteInput; |
| import junit.framework.TestCase; |
| |
| public final class EncodedValueReaderTest extends TestCase { |
| |
| public void testReadByte() { |
| assertEquals((byte) 0x80, readerOf(0, 0x80).readByte()); |
| assertEquals((byte) 0xff, readerOf(0, 0xff).readByte()); |
| assertEquals((byte) 0x00, readerOf(0, 0x00).readByte()); |
| assertEquals((byte) 0x01, readerOf(0, 0x01).readByte()); |
| assertEquals((byte) 0x7f, readerOf(0, 0x7f).readByte()); |
| } |
| |
| public void testReadShort() { |
| assertEquals((short) 0x8000, readerOf(34, 0x00, 0x80).readShort()); |
| assertEquals((short) 0, readerOf( 2, 0x00).readShort()); |
| assertEquals((short) 0xab, readerOf(34, 0xab, 0x00).readShort()); |
| assertEquals((short) 0xabcd, readerOf(34, 0xcd, 0xab).readShort()); |
| assertEquals((short) 0x7FFF, readerOf(34, 0xff, 0x7f).readShort()); |
| } |
| |
| public void testReadInt() { |
| assertEquals(0x80000000, readerOf(100, 0x00, 0x00, 0x00, 0x80).readInt()); |
| assertEquals( 0x00, readerOf( 4, 0x00).readInt()); |
| assertEquals( 0xab, readerOf( 36, 0xab, 0x00).readInt()); |
| assertEquals( 0xabcd, readerOf( 68, 0xcd, 0xab, 0x00).readInt()); |
| assertEquals( 0xabcdef, readerOf(100, 0xef, 0xcd, 0xab, 0x00).readInt()); |
| assertEquals(0xabcdef01, readerOf(100, 0x01, 0xef, 0xcd, 0xab).readInt()); |
| assertEquals(0x7fffffff, readerOf(100, 0xff, 0xff, 0xff, 127).readInt()); |
| } |
| |
| public void testReadLong() { |
| assertEquals(0x8000000000000000L, readerOf( -26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80).readLong()); |
| assertEquals( 0x00L, readerOf( 6, 0x00).readLong()); |
| assertEquals( 0xabL, readerOf( 38, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdL, readerOf( 70, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdefL, readerOf( 102, 0xef, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdef01L, readerOf(-122, 0x01, 0xef, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdef0123L, readerOf( -90, 0x23, 0x01, 0xef, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdef012345L, readerOf( -58, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals( 0xabcdef01234567L, readerOf( -26, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab, 0x00).readLong()); |
| assertEquals(0xabcdef0123456789L, readerOf( -26, 0x89, 0x67, 0x45, 0x23, 0x01, 0xef, 0xcd, 0xab).readLong()); |
| assertEquals(0x7fffffffffffffffL, readerOf( -26, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f).readLong()); |
| } |
| |
| public void testReadFloat() { |
| assertEquals(Float.NEGATIVE_INFINITY, readerOf(48, -128, -1).readFloat()); |
| assertEquals(Float.POSITIVE_INFINITY, readerOf(48, -128, 127).readFloat()); |
| assertEquals(Float.NaN, readerOf(48, -64, 127).readFloat()); |
| assertEquals(-0.0f, readerOf(16, -128).readFloat()); |
| assertEquals(0.0f, readerOf(16, 0).readFloat()); |
| assertEquals(0.5f, readerOf(16, 63).readFloat()); |
| assertEquals(1f, readerOf(48, -128, 63).readFloat()); |
| assertEquals(1.0E06f, readerOf(80, 36, 116, 73).readFloat()); |
| assertEquals(1.0E12f, readerOf(112, -91, -44, 104, 83).readFloat()); |
| } |
| |
| public void testReadDouble() { |
| assertEquals(Double.NEGATIVE_INFINITY, readerOf(49, -16, -1).readDouble()); |
| assertEquals(Double.POSITIVE_INFINITY, readerOf(49, -16, 127).readDouble()); |
| assertEquals(Double.NaN, readerOf(49, -8, 127).readDouble()); |
| assertEquals(-0.0, readerOf(17, -128).readDouble()); |
| assertEquals(0.0, readerOf(17, 0).readDouble()); |
| assertEquals(0.5, readerOf(49, -32, 63).readDouble()); |
| assertEquals(1.0, readerOf(49, -16, 63).readDouble()); |
| assertEquals(1.0E06, readerOf(113, -128, -124, 46, 65).readDouble()); |
| assertEquals(1.0E12, readerOf(-111, -94, -108, 26, 109, 66).readDouble()); |
| assertEquals(1.0E24, readerOf(-15, -76, -99, -39, 121, 67, 120, -22, 68).readDouble()); |
| } |
| |
| public void testReadChar() { |
| assertEquals('\u0000', readerOf( 3, 0x00).readChar()); |
| assertEquals('\u00ab', readerOf( 3, 0xab).readChar()); |
| assertEquals('\uabcd', readerOf(35, 0xcd, 0xab).readChar()); |
| assertEquals('\uffff', readerOf(35, 0xff, 0xff).readChar()); |
| } |
| |
| public void testReadBoolean() { |
| assertEquals(true, readerOf(63).readBoolean()); |
| assertEquals(false, readerOf(31).readBoolean()); |
| } |
| |
| public void testReadNull() { |
| readerOf(30).readNull(); |
| } |
| |
| public void testReadReference() { |
| assertEquals( 0xab, readerOf(0x17, 0xab).readString()); |
| assertEquals( 0xabcd, readerOf(0x37, 0xcd, 0xab).readString()); |
| assertEquals( 0xabcdef, readerOf(0x57, 0xef, 0xcd, 0xab).readString()); |
| assertEquals(0xabcdef01, readerOf(0x77, 0x01, 0xef, 0xcd, 0xab).readString()); |
| } |
| |
| public void testReadWrongType() { |
| try { |
| readerOf(0x17, 0xab).readField(); |
| fail(); |
| } catch (IllegalStateException expected) { |
| } |
| } |
| |
| private EncodedValueReader readerOf(int... bytes) { |
| byte[] data = new byte[bytes.length]; |
| for (int i = 0; i < bytes.length; i++) { |
| data[i] = (byte) bytes[i]; |
| } |
| return new EncodedValueReader(new ByteArrayByteInput(data)); |
| } |
| } |