Add support for constants in the new go generator.

mojom/generators/go/translator/values_test.go

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package translator
+
+import (
+        "testing"
+
+        //"mojom/generated/mojom_files"
+        "mojom/generated/mojom_types"
+)
+
+func TestTranslateLiteralValue(t *testing.T) {
+        testCases := []struct {
+                expected     string
+                literalValue mojom_types.LiteralValue
+        }{
+                {"true", &mojom_types.LiteralValueBoolValue{true}},
+                {"false", &mojom_types.LiteralValueBoolValue{false}},
+                {"32.1", &mojom_types.LiteralValueFloatValue{float32(32.1)}},
+                {"64.2", &mojom_types.LiteralValueDoubleValue{float64(64.2)}},
+                {"8", &mojom_types.LiteralValueUint8Value{uint8(8)}},
+                {"16", &mojom_types.LiteralValueUint16Value{uint16(16)}},
+                {"32", &mojom_types.LiteralValueUint32Value{uint32(32)}},
+                {"64", &mojom_types.LiteralValueUint64Value{uint64(64)}},
+                {"8", &mojom_types.LiteralValueInt8Value{int8(8)}},
+                {"16", &mojom_types.LiteralValueInt16Value{int16(16)}},
+                {"32", &mojom_types.LiteralValueInt32Value{int32(32)}},
+                {"64", &mojom_types.LiteralValueInt64Value{int64(64)}},
+                {"-8", &mojom_types.LiteralValueInt8Value{int8(-8)}},
+                {"-16", &mojom_types.LiteralValueInt16Value{int16(-16)}},
+                {"-32", &mojom_types.LiteralValueInt32Value{int32(-32)}},
+                {"-64", &mojom_types.LiteralValueInt64Value{int64(-64)}},
+                {"\"hello world\"", &mojom_types.LiteralValueStringValue{"hello world"}},
+        }
+
+        translator := NewTranslator(nil)
+        for _, testCase := range testCases {
+                value := mojom_types.ValueLiteralValue{testCase.literalValue}
+                checkEq(t, testCase.expected, translator.translateValue(&value))
+        }
+}