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diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html b/testing/web-platform/tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
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+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-oscillatornode-interface/ctor-oscillator.html
@@ -0,0 +1,112 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>
+      Test Constructor: Oscillator
+    </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, 'OscillatorNode', context);
+        task.done();
+      });
+
+      audit.define('default constructor', (task, should) => {
+        let prefix = 'node0';
+        let node = testDefaultConstructor(should, 'OscillatorNode', context, {
+          prefix: prefix,
+          numberOfInputs: 0,
+          numberOfOutputs: 1,
+          channelCount: 2,
+          channelCountMode: 'max',
+          channelInterpretation: 'speakers'
+        });
+
+        testDefaultAttributes(
+            should, node, prefix,
+            [{name: 'type', value: 'sine'}, {name: 'frequency', value: 440}]);
+
+        task.done();
+      });
+
+      audit.define('test AudioNodeOptions', (task, should) => {
+        testAudioNodeOptions(should, context, 'OscillatorNode');
+        task.done();
+      });
+
+      audit.define('constructor options', (task, should) => {
+        let node;
+        let options = {type: 'sawtooth', detune: 7, frequency: 918};
+
+        should(
+            () => {
+              node = new OscillatorNode(context, options);
+            },
+            'node1 = new OscillatorNode(c, ' + JSON.stringify(options) + ')')
+            .notThrow();
+
+        should(node.type, 'node1.type').beEqualTo(options.type);
+        should(node.detune.value, 'node1.detune.value')
+            .beEqualTo(options.detune);
+        should(node.frequency.value, 'node1.frequency.value')
+            .beEqualTo(options.frequency);
+
+        should(node.channelCount, 'node1.channelCount').beEqualTo(2);
+        should(node.channelCountMode, 'node1.channelCountMode')
+            .beEqualTo('max');
+        should(node.channelInterpretation, 'node1.channelInterpretation')
+            .beEqualTo('speakers');
+
+        // Test that type and periodicWave options work as described.
+        options = {
+          type: 'sine',
+          periodicWave: new PeriodicWave(context, {real: [1, 1]})
+        };
+        should(() => {
+          node = new OscillatorNode(context, options);
+        }, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();
+
+        options = {type: 'custom'};
+        should(
+            () => {
+              node = new OscillatorNode(context, options);
+            },
+            'new OscillatorNode(c, ' + JSON.stringify(options) + ')')
+            .throw(DOMException, 'InvalidStateError');
+
+        options = {
+          type: 'custom',
+          periodicWave: new PeriodicWave(context, {real: [1, 1]})
+        };
+        should(() => {
+          node = new OscillatorNode(context, options);
+        }, 'new OscillatorNode(c, ' + JSON.stringify(options) + ')').notThrow();
+
+        should(
+            () => {
+              node = new OscillatorNode(context, {periodicWave: null});
+            },
+            'new OscillatorNode(c, {periodicWave: null}')
+            .throw(DOMException, 'TypeError');
+        task.done();
+      });
+
+      audit.run();
+    </script>
+  </body>
+</html>