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Unified Diff: test/mjsunit/harmony/typedarrays.js

Issue 13064003: First steps towards implementing ArrayBuffer &co in V8 (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Added forgotten tests Created 7 years, 9 months ago
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Index: test/mjsunit/harmony/typedarrays.js
diff --git a/test/mjsunit/harmony/typedarrays.js b/test/mjsunit/harmony/typedarrays.js
new file mode 100644
index 0000000000000000000000000000000000000000..9b01ba60e8f147c7023eb140d3d84b41ea1936f9
--- /dev/null
+++ b/test/mjsunit/harmony/typedarrays.js
@@ -0,0 +1,136 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --harmony-typed-arrays
+
+function TestByteLength(param, expectedByteLength) {
+ var ab = new __ArrayBuffer(param);
+ assertSame(expectedByteLength, ab.byteLength);
+}
+
+function TestArrayBufferCreation() {
+ TestByteLength(1, 1);
+ TestByteLength(256, 256);
+ TestByteLength(-10, 0);
+ TestByteLength(2.567, 2);
+ TestByteLength(-2.567, 0);
+
+ TestByteLength("abc", 0);
+
+ TestByteLength(0, 0);
+
+ assertThrows(function() {
+ var ab1 = new __ArrayBuffer(0xFFFFFFFFFFFF)
+ }, RangeError);
+
+ var ab = new __ArrayBuffer();
+ assertSame(0, ab.byteLength);
+}
+
+TestArrayBufferCreation();
+
+function TestByteLengthNotWritable() {
+ var ab = new __ArrayBuffer(1024);
+ assertSame(1024, ab.byteLength);
+
+ assertThrows(function() { "use strict"; ab.byteLength = 42; }, TypeError);
+}
+
+TestByteLengthNotWritable();
+
+function TestSlice(expectedResultLen, initialLen, start, end) {
+ var ab = new __ArrayBuffer(initialLen);
+ var slice = ab.slice(start, end);
+ assertSame(expectedResultLen, slice.byteLength);
+}
+
+function TestArrayBufferSlice() {
+ var ab = new __ArrayBuffer(1024);
+ var ab1 = ab.slice(512, 1024);
+ assertSame(512, ab1.byteLength);
+
+ TestSlice(512, 1024, 512, 1024);
+ TestSlice(512, 1024, 512);
+
+ TestSlice(0, 0, 1, 20);
+ TestSlice(100, 100, 0, 100);
+ TestSlice(100, 100, 0, 1000);
+ TestSlice(0, 100, 5, 1);
+
+ TestSlice(1, 100, -11, -10);
+ TestSlice(9, 100, -10, 99);
+ TestSlice(0, 100, -10, 80);
+ TestSlice(10, 100, 80, -10);
+
+ TestSlice(10, 100, 90, "100");
+ TestSlice(10, 100, "90", "100");
+
+ TestSlice(0, 100, 90, "abc");
+ TestSlice(10, 100, "abc", 10);
+
+ TestSlice(10, 100, 0.96, 10.96);
+ TestSlice(10, 100, 0.96, 10.01);
+ TestSlice(10, 100, 0.01, 10.01);
+ TestSlice(10, 100, 0.01, 10.96);
+
+
+ TestSlice(10, 100, 90);
+ TestSlice(10, 100, -10);
+}
+
+TestArrayBufferSlice();
+
+// Test property attribute [[Enumerable]]
+function TestEnumerable(func) {
+ function props(x) {
+ var array = [];
+ for (var p in x) array.push(p);
+ return array.sort();
+ }
+ assertArrayEquals([], props(func));
+ assertArrayEquals([], props(func.prototype));
+ assertArrayEquals([], props(new func()));
+}
+TestEnumerable(__ArrayBuffer);
+
+
+// Test arbitrary properties on ArrayBuffer
+function TestArbitrary(m) {
+ function TestProperty(map, property, value) {
+ map[property] = value;
+ assertEquals(value, map[property]);
+ }
+ for (var i = 0; i < 20; i++) {
+ TestProperty(m, i, 'val' + i);
+ TestProperty(m, 'foo' + i, 'bar' + i);
+ }
+}
+TestArbitrary(new __ArrayBuffer(256));
+
+
+// Test direct constructor call
+assertTrue(__ArrayBuffer() instanceof __ArrayBuffer);
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