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diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/ctor-audiobuffersource.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/ctor-audiobuffersource.html
new file mode 100644
index 0000000000..c1c3203451
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/ctor-audiobuffersource.html
@@ -0,0 +1,116 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>
+      Test Constructor: AudioBufferSource
+    </title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/webaudio/resources/audit-util.js"></script>
+    <script src="/webaudio/resources/audit.js"></script>
+    <script src="/webaudio/resources/audionodeoptions.js"></script>
+  </head>
+  <body>
+    <script id="layout-test-code">
+      let context;
+
+      let audit = Audit.createTaskRunner();
+
+      audit.define('initialize', (task, should) => {
+        context = initializeContext(should);
+        task.done();
+      });
+
+      audit.define('invalid constructor', (task, should) => {
+        testInvalidConstructor(should, 'AudioBufferSourceNode', context);
+        task.done();
+      });
+
+      audit.define('default constructor', (task, should) => {
+        let prefix = 'node0';
+        let node =
+            testDefaultConstructor(should, 'AudioBufferSourceNode', context, {
+              prefix: prefix,
+              numberOfInputs: 0,
+              numberOfOutputs: 1,
+              channelCount: 2,
+              channelCountMode: 'max',
+              channelInterpretation: 'speakers'
+            });
+
+        testDefaultAttributes(should, node, prefix, [
+          {name: 'buffer', value: null},
+          {name: 'detune', value: 0},
+          {name: 'loop', value: false},
+          {name: 'loopEnd', value: 0.0},
+          {name: 'loopStart', value: 0.0},
+          {name: 'playbackRate', value: 1.0},
+        ]);
+
+        task.done();
+      });
+
+      audit.define('nullable buffer', (task, should) => {
+        let node;
+        let options = {buffer: null};
+
+        should(
+            () => {
+              node = new AudioBufferSourceNode(context, options);
+            },
+            'node1 = new AudioBufferSourceNode(c, ' + JSON.stringify(options))
+            .notThrow();
+
+        should(node.buffer, 'node1.buffer').beEqualTo(null);
+
+        task.done();
+      });
+
+      audit.define('constructor options', (task, should) => {
+        let node;
+        let buffer = context.createBuffer(2, 1000, context.sampleRate);
+
+        let options = {
+          buffer: buffer,
+          detune: .5,
+          loop: true,
+          loopEnd: (buffer.length / 2) / context.sampleRate,
+          loopStart: 5 / context.sampleRate,
+          playbackRate: .75
+        };
+
+        let message = 'node = new AudioBufferSourceNode(c, ' +
+            JSON.stringify(options) + ')';
+
+        should(() => {
+          node = new AudioBufferSourceNode(context, options);
+        }, message).notThrow();
+
+        // Use the factory method to create an equivalent node and compare the
+        // results from the constructor against this node.
+        let factoryNode = context.createBufferSource();
+        factoryNode.buffer = options.buffer;
+        factoryNode.detune.value = options.detune;
+        factoryNode.loop = options.loop;
+        factoryNode.loopEnd = options.loopEnd;
+        factoryNode.loopStart = options.loopStart;
+        factoryNode.playbackRate.value = options.playbackRate;
+
+        should(node.buffer === buffer, 'node2.buffer === buffer')
+            .beEqualTo(true);
+        should(node.detune.value, 'node2.detune.value')
+            .beEqualTo(factoryNode.detune.value);
+        should(node.loop, 'node2.loop').beEqualTo(factoryNode.loop);
+        should(node.loopEnd, 'node2.loopEnd').beEqualTo(factoryNode.loopEnd);
+        should(node.loopStart, 'node2.loopStart')
+            .beEqualTo(factoryNode.loopStart);
+        should(node.playbackRate.value, 'node2.playbackRate.value')
+            .beEqualTo(factoryNode.playbackRate.value);
+
+        task.done();
+      });
+
+      audit.run();
+    </script>
+  </body>
+</html>