Convert constructor/analyser test to new Audit

third_party/WebKit/LayoutTests/webaudio/constructor/new-audionodeoptions.js

+// Test that constructor for the node with name |nodeName| handles the
+// various possible values for channelCount, channelCountMode, and
+// channelInterpretation.
+
+// The |should| parameter is the test function from new |Audit|.
+function testAudioNodeOptions(should, context, nodeName, expectedNodeOptions) {
+  if (expectedNodeOptions === undefined)
+    expectedNodeOptions = {};
+  let node;
+
+  // Test that we can set channelCount and that errors are thrown for
+  // invalid values
+  let testChannelCount = 17;
+  if (expectedNodeOptions.ChannelCount) {
+    testChannelCount = expectedNodeOptions.ChannelCount.value;
+  }
+  should(
+      () => {
+        node = new window[nodeName](
+            context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+              channelCount: testChannelCount
+            }));
+      },
+      'new ' + nodeName + '(c, {channelCount: ' + testChannelCount + '}}')
+      .notThrow();
+  should(node.channelCount, 'node.channelCount').beEqualTo(testChannelCount);
+
+  if (expectedNodeOptions.ChannelCount &&
+      expectedNodeOptions.ChannelCount.isFixed) {
+    // The channel count is fixed.  Verify that we throw an error if
+    // we try to change it. Arbitrarily set the count to be one more
+    // than the expected value.
+    testChannelCount = expectedNodeOptions.ChannelCount.value + 1;
+    should(
+        () => {
+          node = new window[nodeName](
+              context,
+              Object.assign(
+                  {}, expectedNodeOptions.additionalOptions,
+                  {channelCount: testChannelCount}));
+        },
+        'new ' + nodeName + '(c, {channelCount: ' + testChannelCount + '}}')
+        .throw(expectedNodeOptions.ChannelCount.errorType || 'TypeError');
+  } else {
+    // The channel count is not fixed.  Try to set the count to invalid
+    // values and make sure an error is thrown.
+    let errorType = 'NotSupportedError';
+
+    should(() => {
+      node = new window[nodeName](
+          context,
+          Object.assign(
+              {}, expectedNodeOptions.additionalOptions, {channelCount: 0}));
+    }, 'new ' + nodeName + '(c, {channelCount: 0}}', ).throw(errorType);
+
+    should(() => {
+      node = new window[nodeName](
+          context,
+          Object.assign(
+              {}, expectedNodeOptions.additionalOptions, {channelCount: 99}));
+    }, 'new ' + nodeName + '(c, {channelCount: 99}}').throw(errorType);
+  }
+
+  // Test channelCountMode
+  let testChannelCountMode = 'max';
+  if (expectedNodeOptions.ChannelCountMode) {
+    testChannelCountMode = expectedNodeOptions.ChannelCountMode.value;
+  }
+  should(
+      () => {
+        node = new window[nodeName](
+            context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+              channelCountMode: testChannelCountMode
+            }));
+      },
+      'new ' + nodeName + '(c, {channelCountMode: "' + testChannelCountMode + '"}')
+      .notThrow();
+  should(node.channelCountMode, 'node.channelCountMode').beEqualTo(testChannelCountMode);
+
+  if (expectedNodeOptions.ChannelCountMode &&
+      expectedNodeOptions.ChannelCountMode.isFixed) {
+    // Channel count mode is fixed.  Test setting to something else throws.
+    let testChannelCountModeMap = {
+      'max': 'clamped-max',
+      'clamped-max': 'explicit',
+      'explicit': 'max'
+    };
+    testChannelCountMode = testChannelCountModeMap[expectedNodeOptions.ChannelCountMode.value];
+    should(
+        () => {
+          node = new window[nodeName](
+              context,
+              Object.assign(
+                  {}, expectedNodeOptions.additionalOptions,
+                  {channelCountMode: testChannelCountMode}));
+        },
+        'new ' + nodeName + '(c, {channelCountMode: "' + testChannelCountMode + '"}')
+        .throw(expectedNodeOptions.ChannelCountMode.errorType);
+  } else {
+    // Mode is not fixed. Verify that we can set the mode to all valid
+    // values, and that we throw for invalid values.
+
+    should(() => {
+      node = new window[nodeName](
+          context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+            channelCountMode: 'clamped-max'
+          }));
+    }, 'new ' + nodeName + '(c, {channelCountMode: "clamped-max"}').notThrow();
+    should(node.channelCountMode, 'node.channelCountMode after invalid setter')
+        .beEqualTo('clamped-max');
+
+    should(() => {
+      node = new window[nodeName](
+          context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+            channelCountMode: 'explicit'
+          }));
+    }, 'new ' + nodeName + '(c, {channelCountMode: "explicit"}').notThrow();
+    should(node.channelCountMode, 'node.channelCountMode')
+        .beEqualTo('explicit');
+
+    should(
+        () => {
+          node = new window[nodeName](
+              context,
+              Object.assign(
+                  {}, expectedNodeOptions.additionalOptions,
+                  {channelCountMode: 'foobar'}));
+        },
+        'new ' + nodeName + '(c, {channelCountMode: "foobar"}')
+        .throw('TypeError');
+    should(node.channelCountMode, 'node.channelCountMode after invalid setter')
+        .beEqualTo('explicit');
+  }
+
+  // Test channelInterpretation
+  should(() => {
+    node = new window[nodeName](
+        context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+          channelInterpretation: 'speakers'
+        }));
+  }, 'new ' + nodeName + '(c, {channelInterpretation: "speakers"})').notThrow();
+  should(node.channelInterpretation, 'node.channelInterpretation')
+      .beEqualTo('speakers');
+
+  should(() => {
+    node = new window[nodeName](
+        context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+          channelInterpretation: 'discrete'
+        }));
+  }, 'new ' + nodeName + '(c, {channelInterpretation: "discrete"})').notThrow();
+  should(node.channelInterpretation, 'node.channelInterpretation')
+      .beEqualTo('discrete');
+
+  should(
+      () => {
+        node = new window[nodeName](
+            context, Object.assign({}, expectedNodeOptions.additionalOptions, {
+              channelInterpretation: 'foobar'
+            }));
+      },
+      'new ' + nodeName + '(c, {channelInterpretation: "foobar"})')
+      .throw('TypeError');
+  should(
+      node.channelInterpretation,
+      'node.channelInterpretation after invalid setter')
+      .beEqualTo('discrete');
+}
+
+function initializeContext(should) {
+  let c;
+  should(() => {
+    c = new OfflineAudioContext(1, 1, 48000);
+  }, 'context = new OfflineAudioContext(...)').notThrow();
+
+  return c;
+}
+
+function testInvalidConstructor(should, name, context) {
+  should(() => {
+    new window[name]();
+  }, 'new ' + name + '()').throw('TypeError');
+  should(() => {
+    new window[name](1);
+  }, 'new ' + name + '(1)').throw('TypeError');
+  should(() => {
+    new window[name](context, 42);
+  }, 'new ' + name + '(context, 42)').throw('TypeError');
+}
+
+function testDefaultConstructor(should, name, context, options) {
+  let node;
+
+  should(() => {
+    node = new window[name](context);
+  }, options.prefix + ' = new ' + name + '(context)').notThrow();
+  should(node instanceof window[name], options.prefix + ' instanceof ' + name)
+      .beEqualTo(true);
+
+  should(node.numberOfInputs, options.prefix + '.numberOfInputs')
+      .beEqualTo(options.numberOfInputs);
+  should(node.numberOfOutputs, options.prefix + '.numberOfOutputs')
+      .beEqualTo(options.numberOfOutputs);
+  should(node.channelCount, options.prefix + '.channelCount')
+      .beEqualTo(options.channelCount);
+  should(node.channelCountMode, options.prefix + '.channelCountMode')
+      .beEqualTo(options.channelCountMode);
+  should(node.channelInterpretation, options.prefix + '.channelInterpretation')
+      .beEqualTo(options.channelInterpretation);
+
+  return node;
+}
+
+function testDefaultAttributes(should, node, prefix, items) {
+  items.forEach((item) => {
+    let attr = node[item.name];
+    if (attr instanceof AudioParam) {
+      should(attr.value, prefix + '.' + item.name + '.value')
+          .beEqualTo(item.value);
+    } else {
+      should(attr, prefix + '.' + item.name).beEqualTo(item.value);
+    }
+  });
+}