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-rw-r--r--js/src/jit-test/tests/dataview/resizable-dataview-bytelength.js43
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/dataview/resizable-dataview-bytelength.js b/js/src/jit-test/tests/dataview/resizable-dataview-bytelength.js
new file mode 100644
index 0000000000..851011032f
--- /dev/null
+++ b/js/src/jit-test/tests/dataview/resizable-dataview-bytelength.js
@@ -0,0 +1,43 @@
+// |jit-test| --enable-arraybuffer-resizable; skip-if: !ArrayBuffer.prototype.resize
+
+load(libdir + "asserts.js");
+
+function testResizableArrayBuffer() {
+ for (let i = 0; i < 4; ++i) {
+ let ab = new ArrayBuffer(i, {maxByteLength: i + 1});
+ let ta = new DataView(ab, 0, i);
+ for (let j = 0; j < 100; ++j) {
+ ab.resize(i);
+ assertEq(ta.byteLength, i);
+
+ ab.resize(i + 1);
+ assertEq(ta.byteLength, i);
+
+ if (i > 0) {
+ ab.resize(i - 1);
+ assertThrowsInstanceOf(() => ta.byteLength, TypeError);
+ }
+ }
+ }
+}
+for (let i = 0; i < 2; ++i) testResizableArrayBuffer();
+
+function testResizableArrayBufferAutoLength() {
+ for (let i = 0; i < 4; ++i) {
+ let ab = new ArrayBuffer(i, {maxByteLength: i + 1});
+ let ta = new DataView(ab);
+ for (let j = 0; j < 100; ++j) {
+ ab.resize(i);
+ assertEq(ta.byteLength, i);
+
+ ab.resize(i + 1);
+ assertEq(ta.byteLength, i + 1);
+
+ if (i > 0) {
+ ab.resize(i - 1);
+ assertEq(ta.byteLength, i - 1);
+ }
+ }
+ }
+}
+for (let i = 0; i < 2; ++i) testResizableArrayBufferAutoLength();