Open source tests for android/ziputils.

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MOS_MIGRATED_REVID=97677526

1 files changed, 188 insertions, 0 deletions

diff --git a/src/test/java/com/google/devtools/build/android/ziputils/DirectoryEntryTest.java b/src/test/java/com/google/devtools/build/android/ziputils/DirectoryEntryTest.java
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index 0000000000..12bbe22b5a
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+++ b/src/test/java/com/google/devtools/build/android/ziputils/DirectoryEntryTest.java
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+// Copyright 2015 Google Inc. 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.android.ziputils;
+
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENATT;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENATX;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENCRC;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENDSK;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENFLG;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENHOW;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENLEN;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENOFF;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENSIG;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENSIZ;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENTIM;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENVEM;
+import static com.google.devtools.build.android.ziputils.DirectoryEntry.CENVER;
+import static java.nio.charset.StandardCharsets.UTF_8;
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Assert;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.zip.ZipInputStream;
+
+/**
+ * Unit tests for {@link DirectoryEntry}.
+ */
+@RunWith(JUnit4.class)
+public class DirectoryEntryTest {
+
+  /**
+   * Test of viewOf method, of class DirectoryEntry.
+   */
+  @Test
+  public void testViewOf() {
+    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
+    for (int i = 0; i < 100; i++) {
+      buffer.put((byte) i);
+    }
+    int offset = 20;
+    int filenameLength = 10;
+    int extraLength = 6;
+    int commentLength = 8;
+    int marker = DirectoryEntry.SIGNATURE;
+    buffer.putShort(offset + ZipInputStream.CENNAM, (short) filenameLength); // filename length
+    buffer.putShort(offset + ZipInputStream.CENEXT, (short) extraLength); // extra data length
+    buffer.putShort(offset + ZipInputStream.CENCOM, (short) commentLength); // comment length
+    buffer.putInt(20, marker); // any marker
+    buffer.position(offset);
+    DirectoryEntry view = DirectoryEntry.viewOf(buffer);
+    int expMark = (int) ZipInputStream.CENSIG;
+    int expSize = ZipInputStream.CENHDR + filenameLength + extraLength + commentLength;
+    int expPos = 0;
+    assertEquals("not based at current position", expMark, view.get(CENSIG));
+    assertEquals("Not slice with position 0", expPos, view.buffer.position());
+    assertEquals("Not sized with comment", expSize, view.getSize());
+    assertEquals("Not limited to size", expSize, view.buffer.limit());
+  }
+
+  /**
+   * Test of view method, of class DirectoryEntry.
+   */
+  @Test
+  public void testView_3Args() {
+    String filename = "pkg/foo.class";
+    String comment = "got milk";
+    byte[] extraData = { 1, 2, 3, 4, 5, 6, 7, 8};
+    int expSize = ZipInputStream.CENHDR + filename.getBytes(UTF_8).length
+        + extraData.length + comment.getBytes(UTF_8).length;
+    int expPos = 0;
+    DirectoryEntry view = DirectoryEntry.allocate(filename, extraData, comment);
+    assertEquals("Incorrect filename", filename, view.getFilename());
+    Assert.assertArrayEquals("Incorrect extra data", extraData, view.getExtraData());
+    assertEquals("Incorrect comment", comment, view.getComment());
+    assertEquals("Not at position 0", expPos, view.buffer.position());
+    assertEquals("Not sized correctly", expSize, view.getSize());
+    assertEquals("Not limited to size", expSize, view.buffer.limit());
+  }
+
+  /**
+   * Test of view method, of class DirectoryEntry.
+   */
+  @Test
+  public void testView_4Args() {
+    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
+    for (int i = 0; i < 100; i++) {
+      buffer.put((byte) i);
+    }
+    int offset = 20;
+    buffer.position(offset);
+    String filename = "pkg/foo.class";
+    byte[] extraData = { 1, 2, 3, 4, 5};
+    String comment = "c";
+    int expMark = (int) ZipInputStream.CENSIG;
+    int expSize = 46 + filename.getBytes(UTF_8).length + extraData.length
+        + comment.getBytes(UTF_8).length;
+    int expPos = 0;
+    DirectoryEntry view = DirectoryEntry.view(buffer, filename, extraData, comment);
+    assertEquals("not based at current position", expMark, view.get(CENSIG));
+    assertEquals("Not slice with position 0", expPos, view.buffer.position());
+    assertEquals("Not sized with filename", expSize, view.getSize());
+    assertEquals("Not limited to size", expSize, view.buffer.limit());
+    assertEquals("Incorrect filename", filename, view.getFilename());
+    Assert.assertArrayEquals("Incorrect extra data", extraData, view.getExtraData());
+    assertEquals("Incorrect comment", comment, view.getComment());
+  }
+
+  /**
+   * Test of copy method, of class DirectoryEntry.
+   */
+  @Test
+  public void testCopy() {
+    String filename = "pkg/foo.class";
+    byte[] extraData = {};
+    String comment = "always comment!";
+    ByteBuffer buffer = ByteBuffer.allocate(100).order(ByteOrder.LITTLE_ENDIAN);
+    DirectoryEntry view = DirectoryEntry.allocate(filename, extraData, comment);
+    view.copy(buffer);
+    int expSize = view.getSize();
+    assertEquals("buffer not advanced as expected", expSize, buffer.position());
+    buffer.position(0);
+    DirectoryEntry clone = DirectoryEntry.viewOf(buffer);
+    assertEquals("Fail to copy mark", view.get(CENSIG), clone.get(CENSIG));
+    assertEquals("Fail to copy comment", view.getFilename(), clone.getFilename());
+    Assert.assertArrayEquals("Fail to copy comment", view.getExtraData(), clone.getExtraData());
+    assertEquals("Fail to copy comment", view.getComment(), clone.getComment());
+  }
+
+  /**
+   * Test of with and get methods.
+   */
+  @Test
+  public void testWithAndGetMethods() {
+    int crc = 0x12345678;
+    int compressed = 0x357f1d5;
+    int uncompressed = 0x74813159;
+    short flags = 0x7a61;
+    short method = 0x3b29;
+    int time = 0x12312345;
+    short version = 0x1234;
+    short versionMadeBy = 0x27a1;
+    short disk = 0x5a78;
+    int extAttr = 0x73b27a15;
+    short intAttr = 0x37cc;
+    int offset = 0x74c93ac1;
+    DirectoryEntry view = DirectoryEntry.allocate("pkg/foo.class", null, "")
+        .set(CENCRC, crc)
+        .set(CENSIZ, compressed)
+        .set(CENLEN, uncompressed)
+        .set(CENFLG, flags)
+        .set(CENHOW, method)
+        .set(CENTIM, time)
+        .set(CENVER, version)
+        .set(CENVEM, versionMadeBy)
+        .set(CENDSK, disk)
+        .set(CENATX, extAttr)
+        .set(CENATT, intAttr)
+        .set(CENOFF, offset);
+    assertEquals("CRC", crc, view.get(CENCRC));
+    assertEquals("Compressed size", compressed, view.get(CENSIZ));
+    assertEquals("Uncompressed size", uncompressed, view.get(CENLEN));
+    assertEquals("Flags", flags, view.get(CENFLG));
+    assertEquals("Method", method, view.get(CENHOW));
+    assertEquals("Modified time", time, view.get(CENTIM));
+    assertEquals("Version needed", version, view.get(CENVER));
+    assertEquals("Version made by", versionMadeBy, view.get(CENVEM));
+    assertEquals("Disk", disk, view.get(CENDSK));
+    assertEquals("External attributes", extAttr, view.get(CENATX));
+    assertEquals("Internal attributes", intAttr, view.get(CENATT));
+    assertEquals("Offset", offset, view.get(CENOFF));
+  }
+}