| // Copyright 2015 The Bazel Authors. All rights reserved. |
| // |
| // 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.google.devtools.build.zip; |
| |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| import java.util.Calendar; |
| import java.util.GregorianCalendar; |
| |
| @RunWith(JUnit4.class) |
| public class ZipUtilTest { |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| |
| @Test public void testShortToLittleEndian() { |
| byte[] bytes = ZipUtil.shortToLittleEndian((short) 4660); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x34, 0x12 }); |
| } |
| |
| @Test public void testShortToLittleEndian_Signed() { |
| byte[] bytes = ZipUtil.shortToLittleEndian((short) -3532); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x34, (byte) 0xf2 }); |
| } |
| |
| @Test public void testIntToLittleEndian() { |
| byte[] bytes = ZipUtil.intToLittleEndian(305419896); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x78, 0x56, 0x34, 0x12 }); |
| } |
| |
| @Test public void testIntToLittleEndian_Signed() { |
| byte[] bytes = ZipUtil.intToLittleEndian(-231451016); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x78, 0x56, 0x34, (byte) 0xf2 }); |
| } |
| |
| @Test public void testLongToLittleEndian() { |
| byte[] bytes = ZipUtil.longToLittleEndian(305419896); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x78, 0x56, 0x34, 0x12, 0x0, 0x0, 0x0, 0x0 }); |
| } |
| |
| @Test public void testLongToLittleEndian_Signed() { |
| byte[] bytes = ZipUtil.longToLittleEndian(-231451016); |
| assertThat(bytes).isEqualTo(new byte[]{ 0x78, 0x56, 0x34, (byte) 0xf2, |
| (byte) 0xff, (byte) 0xff, (byte) 0xff, (byte) 0xff }); |
| } |
| |
| @Test public void testGet16() { |
| short result = ZipUtil.get16(new byte[]{ 0x34, 0x12 }, 0); |
| assertThat(result).isEqualTo((short) 0x1234); |
| assertThat(result).isEqualTo((short) 4660); |
| } |
| |
| @Test public void testGet16_Signed() { |
| short result = ZipUtil.get16(new byte[]{ 0x34, (byte) 0xff }, 0); |
| assertThat(result).isEqualTo((short) 0xff34); |
| assertThat(result).isEqualTo((short) -204); |
| } |
| |
| @Test public void testGet32() { |
| int result = ZipUtil.get32(new byte[]{ 0x78, 0x56, 0x34, 0x12 }, 0); |
| assertThat(result).isEqualTo(0x12345678); |
| assertThat(result).isEqualTo(305419896); |
| } |
| |
| @Test public void testGet32_Short() { |
| int result = ZipUtil.get32(new byte[]{ 0x34, (byte) 0xff, 0x0, 0x0 }, 0); |
| assertThat(result).isEqualTo(0xff34); |
| assertThat(result).isEqualTo(65332); |
| } |
| |
| @Test public void testGet32_Signed() { |
| int result = ZipUtil.get32(new byte[]{ 0x34, (byte) 0xff, (byte) 0xff, (byte) 0xff }, 0); |
| assertThat(result).isEqualTo(0xffffff34); |
| assertThat(result).isEqualTo(-204); |
| } |
| |
| @Test public void testGetUnsignedShort() { |
| int result = ZipUtil.getUnsignedShort(new byte[]{ 0x34, 0x12 }, 0); |
| assertThat(result).isEqualTo(0x1234); |
| assertThat(result).isEqualTo(4660); |
| } |
| |
| @Test public void testGetUnsignedShort_Big() { |
| int result = ZipUtil.getUnsignedShort(new byte[]{ 0x34, (byte) 0xff }, 0); |
| assertThat(result).isEqualTo(0xff34); |
| assertThat(result).isEqualTo(65332); |
| } |
| |
| @Test public void testGetUnsignedInt() { |
| long result = ZipUtil.getUnsignedInt(new byte[]{ 0x34, 0x12, 0x0, 0x0 }, 0); |
| assertThat(result).isEqualTo(0x1234); |
| assertThat(result).isEqualTo(4660); |
| } |
| |
| @Test public void testGetUnsignedShort_FFFF() { |
| int result = ZipUtil.getUnsignedShort(new byte[]{ (byte) 0xff, (byte) 0xff }, 0); |
| assertThat((short) result).isEqualTo((short) -1); |
| } |
| |
| @Test public void testGetUnsignedInt_Big() { |
| long result = ZipUtil.getUnsignedInt( |
| new byte[]{ 0x34, (byte) 0xff, (byte) 0xff, (byte) 0xff }, 0); |
| assertThat(result).isEqualTo(0xffffff34L); |
| assertThat(result).isEqualTo(4294967092L); |
| } |
| |
| @Test public void testTimeConversion_DosToUnix() { |
| int dos = (20 << 25) | (2 << 21) | (14 << 16) | (3 << 11) | (7 << 5) | (15 >> 1); |
| |
| Calendar time = new GregorianCalendar(2000, Calendar.FEBRUARY, 14, 3, 7, 14); |
| long expectedUnixTime = time.getTimeInMillis(); |
| assertThat(ZipUtil.dosToUnixTime(dos)).isEqualTo(expectedUnixTime); |
| } |
| |
| @Test public void testTimeConversion_UnixToDos() { |
| Calendar time = new GregorianCalendar(2000, Calendar.FEBRUARY, 14, 3, 7, 14); |
| long unix = time.getTimeInMillis(); |
| int expectedDosTime = (20 << 25) | (2 << 21) | (14 << 16) | (3 << 11) | (7 << 5) | (15 >> 1); |
| assertThat(ZipUtil.unixToDosTime(unix)).isEqualTo(expectedDosTime); |
| } |
| |
| @Test public void testTimeConversion_UnixToDos_LowBound() { |
| Calendar time = Calendar.getInstance(); |
| time.setTimeInMillis(ZipUtil.DOS_EPOCH); |
| time.add(Calendar.SECOND, -1); |
| thrown.expect(IllegalArgumentException.class); |
| ZipUtil.unixToDosTime(time.getTimeInMillis()); |
| } |
| |
| @Test public void testTimeConversion_UnixToDos_HighBound_Rounding() { |
| Calendar time = Calendar.getInstance(); |
| time.setTimeInMillis(ZipUtil.MAX_DOS_DATE); |
| ZipUtil.unixToDosTime(time.getTimeInMillis()); |
| } |
| |
| @Test public void testTimeConversion_UnixToDos_HighBound() { |
| Calendar time = Calendar.getInstance(); |
| time.setTimeInMillis(ZipUtil.MAX_DOS_DATE); |
| time.add(Calendar.SECOND, 1); |
| thrown.expect(IllegalArgumentException.class); |
| ZipUtil.unixToDosTime(time.getTimeInMillis()); |
| } |
| |
| @Test public void testTimeConversion_UnixToUnix() { |
| Calendar from = new GregorianCalendar(2000, Calendar.FEBRUARY, 14, 3, 7, 15); |
| Calendar to = new GregorianCalendar(2000, Calendar.FEBRUARY, 14, 3, 7, 14); |
| assertThat(ZipUtil.dosToUnixTime(ZipUtil.unixToDosTime(from.getTimeInMillis()))) |
| .isEqualTo(to.getTimeInMillis()); |
| } |
| |
| @Test public void testTimeConversion_DosToDos() { |
| int dos = (20 << 25) | (2 << 21) | (14 << 16) | (3 << 11) | (7 << 5) | (15 >> 1); |
| assertThat(ZipUtil.unixToDosTime(ZipUtil.dosToUnixTime(dos))).isEqualTo(dos); |
| } |
| |
| @Test public void testTimeConversion_DosToDos_Zero() { |
| int dos = 0; |
| thrown.expect(IllegalArgumentException.class); |
| assertThat(ZipUtil.unixToDosTime(ZipUtil.dosToUnixTime(dos))).isEqualTo(0); |
| } |
| } |