Test assembly of OpSource using all language enums

Adds a file to test assembly of instructions in the "Debug" section
of the SPIR-V spec.

CMakeLists.txt

@@ -184,6 +184,7 @@ if (NOT ${SPIRV_SKIP_EXECUTABLES})
       ${CMAKE_CURRENT_SOURCE_DIR}/test/TextLiteral.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/TextStartsNewInst.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/TextToBinary.cpp
+      ${CMAKE_CURRENT_SOURCE_DIR}/test/TextToBinary.Debug.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/TextToBinary.Miscellaneous.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/TextWordGet.cpp
       ${CMAKE_CURRENT_SOURCE_DIR}/test/Validate.cpp

test/TextToBinary.Debug.cpp

@@ -0,0 +1,83 @@
+// Copyright (c) 2015 The Khronos Group Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+//
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+//
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+
+// Assembler tests for instructions in the "Debug" section of the
+// SPIR-V spec.
+
+#include "UnitSPIRV.h"
+
+#include <string>
+
+#include "gmock/gmock.h"
+#include "TestFixture.h"
+
+namespace {
+
+using spvtest::MakeInstruction;
+using ::testing::Eq;
+
+// A single test case for OpSource
+struct LanguageCase {
+  const char* language_name;
+  const spv::SourceLanguage language_value;
+  const uint32_t version;
+};
+
+// clang-format off
+// The list of OpSource cases to use.
+const LanguageCase kLanguageCases[] = {
+#define CASE(NAME, VERSION) \
+  { #NAME, spv::SourceLanguage##NAME, VERSION }
+  CASE(Unknown, 0),
+  CASE(Unknown, 999),
+  CASE(ESSL, 310),
+  CASE(GLSL, 450),
+  CASE(OpenCL, 210),
+#undef CASE
+};
+// clang-format on
+
+using OpSourceTest =
+    test_fixture::TextToBinaryTestBase<::testing::TestWithParam<LanguageCase>>;
+
+TEST_P(OpSourceTest, AnyLanguage) {
+  std::string input = std::string("OpSource ") + GetParam().language_name +
+                      " " + std::to_string(GetParam().version);
+  EXPECT_THAT(CompiledInstructions(input),
+              Eq(MakeInstruction(spv::OpSource, {GetParam().language_value,
+                                                 GetParam().version})));
+}
+
+INSTANTIATE_TEST_CASE_P(TextToBinaryTestDebug, OpSourceTest,
+                        ::testing::ValuesIn(kLanguageCases));
+
+// TODO(dneto): OpSourceExtension
+// TODO(dneto): OpName
+// TODO(dneto): OpMemberName
+// TODO(dneto): OpString
+// TODO(dneto): OpLine.  OpLine is significantly different after Rev31.
+
+}  // anonymous namespace