[ZLIB] Add support for windowBits, memLevel, raw

tests/standalone/io/zlib_test.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:async';
 import 'dart:io';
 
 import "package:async_helper/async_helper.dart";
 import "package:expect/expect.dart";
 
-void testZLibDeflate() {
-  test(int level, List<int> expected) {
-    asyncStart();
-    var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
-    var controller = new StreamController(sync: true);
-    controller.stream.transform(new ZLibEncoder(gzip: false, level: level))
-        .fold([], (buffer, data) {
-          buffer.addAll(data);
-          return buffer;
-        })
-        .then((data) {
-          Expect.listEquals(expected, data);
-          asyncEnd();
-        });
-    controller.add(data);
-    controller.close();
-  }
-  test(6, [120, 156, 99, 96, 100, 98, 102, 97, 101, 99, 231, 224, 4, 0, 0, 175,
-           0, 46]);
-}
-
-
 void testZLibDeflateEmpty() {
   asyncStart();
   var controller = new StreamController(sync: true);
   controller.stream.transform(new ZLibEncoder(gzip: false, level: 6))
       .fold([], (buffer, data) {
         buffer.addAll(data);
         return buffer;
       })
       .then((data) {
         Expect.listEquals([120, 156, 3, 0, 0, 0, 0, 1], data);
         asyncEnd();
       });
   controller.close();
 }
 
+void testZLibDeflateEmptyGzip() {
+  asyncStart();
+  var controller = new StreamController(sync: true);
+  controller.stream.transform(new ZLibEncoder(gzip: true, level: 6))
+  .fold([], (buffer, data) {
+    buffer.addAll(data);
+    return buffer;
+  })
+  .then((data) {
+    Expect.listEquals([31, 139, 8, 0, 0, 0, 0, 0, 0, 3, 3, 0, 0, 0, 0, 0, 0, 0,
+                       0, 0], data);
+    asyncEnd();
+  });
+  controller.close();
+}
+
+void testZLibDeflate() {
+  test(int level, List<int> expected) {
+    asyncStart();
+    var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+    var controller = new StreamController(sync: true);
+    controller.stream.transform(new ZLibEncoder(gzip: false, level: level))
+    .fold([], (buffer, data) {
+      buffer.addAll(data);
+      return buffer;
+    })
+    .then((data) {
+      Expect.listEquals(expected, data);
+      asyncEnd();
+    });
+    controller.add(data);
+    controller.close();
+  }
+  test(6, [120, 156, 99, 96, 100, 98, 102, 97, 101, 99, 231, 224, 4, 0, 0, 175,
+  0, 46]);
+}
 
 void testZLibDeflateGZip() {
   asyncStart();
   var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
   var controller = new StreamController(sync: true);
   controller.stream.transform(new ZLibEncoder(gzip: true))
       .fold([], (buffer, data) {
         buffer.addAll(data);
         return buffer;
       })
       .then((data) {
         Expect.equals(30, data.length);
         Expect.listEquals([99, 96, 100, 98, 102, 97, 101, 99, 231, 224, 4, 0,
                            70, 215, 108, 69, 10, 0, 0, 0],
                           // Skip header, as it can change.
                           data.sublist(10));
         asyncEnd();
       });
   controller.add(data);
   controller.close();
 }
 
+void testZLibDeflateRaw() {
+  test(int level, List<int> expected) {
+    asyncStart();
+    var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+    var controller = new StreamController(sync: true);
+    controller.stream.transform(new ZLibEncoder(raw: true, level: level))
+    .fold([], (buffer, data) {
+      buffer.addAll(data);
+      return buffer;
+    })
+    .then((data) {
+      print(data);
+      Expect.listEquals(expected, data);
+      asyncEnd();
+    });
+    controller.add(data);
+    controller.close();
+  }
+  test(6, [99, 96, 100, 98, 102, 97, 101, 99, 231, 224, 4, 0]);
+}
+
 void testZLibDeflateInvalidLevel() {
   test2(gzip, level) {
-    try {
-      new ZLibEncoder(gzip: gzip, level: level).startChunkedConversion(null);
-      Expect.fail("No exception thrown");
-    } catch (e) {
-    }
+    var encoder = new ZLibEncoder(gzip: gzip, level: level);
+    Expect.throws(() => encoder.startChunkedConversion(null));
   }
   test(level) {
     test2(false, level);
     test2(true, level);
     test2(9, level);
   }
   test(-2);
   test(-20);
   test(10);
   test(42);
@@ skipping 22 matching lines @@
   }
   void test(int level) {
     test2(false, level);
     test2(true, level);
   }
   for (int i = -1; i < 10; i++) {
     test(i);
   }
 }
 
+void testZLibInflateRaw() {
+  test(int level) {
+    asyncStart();
+    var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+    var controller = new StreamController(sync: true);
+    controller.stream
+    .transform(new ZLibEncoder(raw: true, level: level))
+    .transform(new ZLibDecoder(raw: true))
+    .fold([], (buffer, data) {
+      buffer.addAll(data);
+      return buffer;
+    })
+    .then((inflated) {
+      Expect.listEquals(data, inflated);
+      asyncEnd();
+    });
+    controller.add(data);
+    controller.close();
+  }
+  for (int i = -1; i < 10; i++) {
+    test(i);
+  }
+}
+
 void testZLibInflateSync() {
   test2(bool gzip, int level) {
     var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
     var encoded = new ZLibEncoder(gzip: gzip, level: level).convert(data);
     var decoded = new ZLibDecoder().convert(encoded);
     Expect.listEquals(data, decoded);
   }
   void test(int level) {
     test2(false, level);
     test2(true, level);
   }
   for (int i = -1; i < 10; i++) {
     test(i);
   }
 }
 
+void testZlibInflateThrowsWithSmallerWindow() {
+  var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+  var encoder = new ZLibEncoder(windowBits: 10);
+  var encodedData = encoder.convert(data);
+  var decoder = new ZLibDecoder(windowBits: 8);
+  Expect.throws(() => decoder.convert(encodedData));
+}
+
+void testZlibInflateWithLargerWindow() {
+  test2(bool gzip, int level) {
+    asyncStart();
+    var data = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
+    var controller = new StreamController(sync: true);
+    controller.stream
+    .transform(new ZLibEncoder(gzip: gzip, level: level, windowBits: 8))
+    .transform(new ZLibDecoder(windowBits: 10))
+    .fold([], (buffer, data) {
+      buffer.addAll(data);
+      return buffer;
+    })
+    .then((inflated) {
+      Expect.listEquals(data, inflated);
+      asyncEnd();
+    });
+    controller.add(data);
+    controller.close();
+  }
+  void test(int level) {
+    test2(false, level);
+    test2(true, level);
+  }
+  for (int i = -1; i < 10; i++) {
+    test(i);
+  }
+}
+
 void main() {
   asyncStart();
   testZLibDeflate();
   testZLibDeflateEmpty();
+  testZLibDeflateEmptyGzip();
   testZLibDeflateGZip();
   testZLibDeflateInvalidLevel();
   testZLibInflate();
   testZLibInflateSync();
+  testZlibInflateThrowsWithSmallerWindow();
+  testZlibInflateWithLargerWindow();
+  testZLibDeflateRaw();
+  testZLibInflateRaw();
   asyncEnd();
 }