Adds multiple forms of MediaStreamTrack constraints

third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp

Index: third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp
diff --git a/third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp b/third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp
index adc955480005b7e7b117f000057c87d81fa87f34..1d5724b858d44a743e3bf181a91f05cfbdfe7c75 100644
--- a/third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp
+++ b/third_party/WebKit/Source/modules/mediastream/MediaConstraintsTest.cpp
@@ -2,21 +2,25 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "modules/mediastream/MediaConstraintsImpl.h"
+#include "modules/mediastream/MediaTrackConstraints.h"
 #include "public/platform/WebMediaConstraints.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace blink {
+
 // The MediaTrackConstraintsTest group tests the types declared in
 // WebKit/public/platform/WebMediaConstraints.h
 TEST(MediaTrackConstraintsTest, LongConstraint)
 {
-    blink::LongConstraint rangeConstraint(nullptr);
+    LongConstraint rangeConstraint(nullptr);
     rangeConstraint.setMin(5);
     rangeConstraint.setMax(6);
     EXPECT_TRUE(rangeConstraint.matches(5));
     EXPECT_TRUE(rangeConstraint.matches(6));
     EXPECT_FALSE(rangeConstraint.matches(4));
     EXPECT_FALSE(rangeConstraint.matches(7));
-    blink::LongConstraint exactConstraint(nullptr);
+    LongConstraint exactConstraint(nullptr);
     exactConstraint.setExact(5);
     EXPECT_FALSE(exactConstraint.matches(4));
     EXPECT_TRUE(exactConstraint.matches(5));
@@ -25,27 +29,27 @@ TEST(MediaTrackConstraintsTest, LongConstraint)
 
 TEST(MediaTrackConstraintsTest, DoubleConstraint)
 {
-    blink::DoubleConstraint rangeConstraint(nullptr);
+    DoubleConstraint rangeConstraint(nullptr);
     EXPECT_TRUE(rangeConstraint.isEmpty());
     rangeConstraint.setMin(5.0);
     rangeConstraint.setMax(6.5);
     EXPECT_FALSE(rangeConstraint.isEmpty());
     // Matching within epsilon
-    EXPECT_TRUE(rangeConstraint.matches(5.0 - blink::DoubleConstraint::kConstraintEpsilon / 2));
-    EXPECT_TRUE(rangeConstraint.matches(6.5 + blink::DoubleConstraint::kConstraintEpsilon / 2));
-    blink::DoubleConstraint exactConstraint(nullptr);
+    EXPECT_TRUE(rangeConstraint.matches(5.0 - DoubleConstraint::kConstraintEpsilon / 2));
+    EXPECT_TRUE(rangeConstraint.matches(6.5 + DoubleConstraint::kConstraintEpsilon / 2));
+    DoubleConstraint exactConstraint(nullptr);
     exactConstraint.setExact(5.0);
     EXPECT_FALSE(rangeConstraint.isEmpty());
     EXPECT_FALSE(exactConstraint.matches(4.9));
     EXPECT_TRUE(exactConstraint.matches(5.0));
-    EXPECT_TRUE(exactConstraint.matches(5.0 - blink::DoubleConstraint::kConstraintEpsilon / 2));
-    EXPECT_TRUE(exactConstraint.matches(5.0 + blink::DoubleConstraint::kConstraintEpsilon / 2));
+    EXPECT_TRUE(exactConstraint.matches(5.0 - DoubleConstraint::kConstraintEpsilon / 2));
+    EXPECT_TRUE(exactConstraint.matches(5.0 + DoubleConstraint::kConstraintEpsilon / 2));
     EXPECT_FALSE(exactConstraint.matches(5.1));
 }
 
 TEST(MediaTrackConstraintsTest, BooleanConstraint)
 {
-    blink::BooleanConstraint boolConstraint(nullptr);
+    BooleanConstraint boolConstraint(nullptr);
     EXPECT_TRUE(boolConstraint.isEmpty());
     EXPECT_TRUE(boolConstraint.matches(false));
     EXPECT_TRUE(boolConstraint.matches(true));
@@ -60,7 +64,7 @@ TEST(MediaTrackConstraintsTest, BooleanConstraint)
 
 TEST(MediaTrackConstraintsTest, ConstraintSetEmpty)
 {
-    blink::WebMediaTrackConstraintSet theSet;
+    WebMediaTrackConstraintSet theSet;
     EXPECT_TRUE(theSet.isEmpty());
     theSet.echoCancellation.setExact(false);
     EXPECT_FALSE(theSet.isEmpty());
@@ -69,13 +73,13 @@ TEST(MediaTrackConstraintsTest, ConstraintSetEmpty)
 TEST(MediaTrackConstraintsTest, ConstraintName)
 {
     const char* theName = "name";
-    blink::BooleanConstraint boolConstraint(theName);
+    BooleanConstraint boolConstraint(theName);
     EXPECT_EQ(theName, boolConstraint.name());
 }
 
 TEST(MediaTrackConstraintsTest, MandatoryChecks)
 {
-    blink::WebMediaTrackConstraintSet theSet;
+    WebMediaTrackConstraintSet theSet;
     std::string foundName;
     EXPECT_FALSE(theSet.hasMandatory());
     EXPECT_FALSE(theSet.hasMandatoryOutsideSet({ "width" }, foundName));
@@ -93,7 +97,7 @@ TEST(MediaTrackConstraintsTest, MandatoryChecks)
 
 TEST(MediaTrackConstraintsTest, SetToString)
 {
-    blink::WebMediaTrackConstraintSet theSet;
+    WebMediaTrackConstraintSet theSet;
     EXPECT_EQ("", theSet.toString());
     theSet.width.setMax(240);
     EXPECT_EQ("width: {max: 240}", theSet.toString().utf8());
@@ -103,14 +107,98 @@ TEST(MediaTrackConstraintsTest, SetToString)
 
 TEST(MediaTrackConstraintsTest, ConstraintsToString)
 {
-    blink::WebMediaConstraints theConstraints;
-    blink::WebMediaTrackConstraintSet basic;
-    blink::WebVector<blink::WebMediaTrackConstraintSet> advanced(static_cast<size_t>(1));
+    WebMediaConstraints theConstraints;
+    WebMediaTrackConstraintSet basic;
+    WebVector<WebMediaTrackConstraintSet> advanced(static_cast<size_t>(1));
     basic.width.setMax(240);
     advanced[0].echoCancellation.setExact(true);
     theConstraints.initialize(basic, advanced);
     EXPECT_EQ("{width: {max: 240}, advanced: [{echoCancellation: {exact: true}}]}", theConstraints.toString().utf8());
 
-    blink::WebMediaConstraints nullConstraints;
+    WebMediaConstraints nullConstraints;
     EXPECT_EQ("", nullConstraints.toString().utf8());
 }
+
+TEST(MediaTrackConstraintsTest, ConvertWebConstraintsBasic)
+{
+    WebMediaConstraints input;
+    MediaTrackConstraints output;
+
+    MediaConstraintsImpl::convertConstraints(input, output);
+}
+
+TEST(MediaTrackConstraintsTest, ConvertWebSingleStringConstraint)
+{
+    WebMediaConstraints input;
+    MediaTrackConstraints output;
+
+    WebMediaTrackConstraintSet basic;
+    WebVector<WebMediaTrackConstraintSet> advanced;
+
+    basic.facingMode.setIdeal(WebVector<WebString>(&"foo", 1));
+    input.initialize(basic, advanced);
+    MediaConstraintsImpl::convertConstraints(input, output);
+    ASSERT_TRUE(output.hasFacingMode());
+    ASSERT_TRUE(output.facingMode().isString());
+    EXPECT_EQ("foo", output.facingMode().getAsString());
+}
+
+TEST(MediaTrackConstraintsTest, ConvertWebDoubleStringConstraint)
+{
+    WebMediaConstraints input;
+    MediaTrackConstraints output;
+
+    WebVector<WebString> buffer(static_cast<size_t>(2u));
+    buffer[0] = "foo";
+    buffer[1] = "bar";
+
+    WebMediaTrackConstraintSet basic;
+    std::vector<WebMediaTrackConstraintSet> advanced;
+    basic.facingMode.setIdeal(buffer);
+    input.initialize(basic, advanced);
+    MediaConstraintsImpl::convertConstraints(input, output);
+    ASSERT_TRUE(output.hasFacingMode());
+    ASSERT_TRUE(output.facingMode().isStringSequence());
+    auto outBuffer = output.facingMode().getAsStringSequence();
+    EXPECT_EQ("foo", outBuffer[0]);
+    EXPECT_EQ("bar", outBuffer[1]);
+}
+
+TEST(MediaTrackConstraintsTest, ConvertBlinkStringConstraint)
+{
+    MediaTrackConstraints input;
+    WebMediaConstraints output;
+    StringOrStringSequenceOrConstrainDOMStringParameters parameter;
+    parameter.setString("foo");
+    input.setFacingMode(parameter);
+    output = MediaConstraintsImpl::convertConstraintsToWeb(input);
+    ASSERT_TRUE(output.basic().facingMode.hasIdeal());
+    ASSERT_EQ(1U, output.basic().facingMode.ideal().size());
+    ASSERT_EQ("foo", output.basic().facingMode.ideal()[0]);
+}
+
+TEST(MediaTrackConstraintsTest, ConvertBlinkComplexStringConstraint)
+{
+    MediaTrackConstraints input;
+    WebMediaConstraints output;
+    StringOrStringSequenceOrConstrainDOMStringParameters parameter;
+    ConstrainDOMStringParameters subparameter;
+    StringOrStringSequence innerString;
+    innerString.setString("foo");
+    subparameter.setIdeal(innerString);
+    parameter.setConstrainDOMStringParameters(subparameter);
+    input.setFacingMode(parameter);
+    output = MediaConstraintsImpl::convertConstraintsToWeb(input);
+    ASSERT_TRUE(output.basic().facingMode.hasIdeal());
+    ASSERT_EQ(1U, output.basic().facingMode.ideal().size());
+    ASSERT_EQ("foo", output.basic().facingMode.ideal()[0]);
+
+    // Convert this back, and see that it appears as a single string.
+    MediaTrackConstraints recycled;
+    MediaConstraintsImpl::convertConstraints(output, recycled);
+    ASSERT_TRUE(recycled.hasFacingMode());
+    ASSERT_TRUE(recycled.facingMode().isString());
+    ASSERT_EQ("foo", recycled.facingMode().getAsString());
+}
+
+} // namespace blink