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/*
* 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.dx.io;
import com.android.dx.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));
}
}
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