Link in Google Test framework.
The existing test harness is a homemade shell script. All the tests
and the expected results are written in plain text files. The harness
just reads in a test, invoke the glslangValidator binary on it, and
compare the result with the golden file. All tests are kinda
integration tests.
This patch add Google Test as an external project, which provides a
new harness for reading shader source files, compile to SPIR-V, and
then compare with the expected output.
diff --git a/gtests/AST.FromFile.cpp b/gtests/AST.FromFile.cpp
new file mode 100644
index 0000000..5e0b31e
--- /dev/null
+++ b/gtests/AST.FromFile.cpp
@@ -0,0 +1,191 @@
+//
+// Copyright (C) 2016 Google, Inc.
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//
+// Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+//
+// Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+
+#include <gtest/gtest.h>
+
+#include "TestFixture.h"
+
+namespace glslangtest {
+namespace {
+
+using CompileToAstTest = GlslangTest<::testing::TestWithParam<std::string>>;
+
+TEST_P(CompileToAstTest, FromFile)
+{
+ loadFileCompileAndCheck(GLSLANG_TEST_DIRECTORY, GetParam(),
+ Semantics::OpenGL, Target::AST);
+}
+
+// clang-format off
+INSTANTIATE_TEST_CASE_P(
+ Glsl, CompileToAstTest,
+ ::testing::ValuesIn(std::vector<std::string>({
+ "sample.frag",
+ "sample.vert",
+ "decls.frag",
+ "specExamples.frag",
+ "specExamples.vert",
+ "versionsClean.frag",
+ "versionsClean.vert",
+ "versionsErrors.frag",
+ "versionsErrors.vert",
+ "100.frag",
+ "120.vert",
+ "120.frag",
+ "130.vert",
+ "130.frag",
+ "140.vert",
+ "140.frag",
+ "150.vert",
+ "150.geom",
+ "150.frag",
+ "precision.frag",
+ "precision.vert",
+ "nonSquare.vert",
+ "matrixError.vert",
+ "cppSimple.vert",
+ "cppIndent.vert",
+ "cppNest.vert",
+ "cppComplexExpr.vert",
+ "badChars.frag",
+ "pointCoord.frag",
+ "array.frag",
+ "array100.frag",
+ "comment.frag",
+ "300.vert",
+ "300.frag",
+ "300BuiltIns.frag",
+ "300layout.vert",
+ "300layout.frag",
+ "300operations.frag",
+ "300block.frag",
+ "310.comp",
+ "310.vert",
+ "310.geom",
+ "310.frag",
+ "310.tesc",
+ "310.tese",
+ "310implicitSizeArrayError.vert",
+ "310AofA.vert",
+ "330.frag",
+ "330comp.frag",
+ "constErrors.frag",
+ "constFold.frag",
+ "errors.frag",
+ "forwardRef.frag",
+ "uint.frag",
+ "switch.frag",
+ "tokenLength.vert",
+ "100Limits.vert",
+ "100scope.vert",
+ "110scope.vert",
+ "300scope.vert",
+ "400.frag",
+ "420.frag",
+ "420.vert",
+ "420.geom",
+ "420_size_gl_in.geom",
+ "430scope.vert",
+ "lineContinuation100.vert",
+ "lineContinuation.vert",
+ "numeral.frag",
+ "400.geom",
+ "400.tesc",
+ "400.tese",
+ "410.tesc",
+ "420.tesc",
+ "420.tese",
+ "410.geom",
+ "430.vert",
+ "430.comp",
+ "430AofA.frag",
+ "440.vert",
+ "440.frag",
+ "450.vert",
+ "450.geom",
+ "450.tesc",
+ "450.tese",
+ "450.frag",
+ "450.comp",
+ "dce.frag",
+ "atomic_uint.frag",
+ "aggOps.frag",
+ "always-discard.frag",
+ "always-discard2.frag",
+ "conditionalDiscard.frag",
+ "conversion.frag",
+ "dataOut.frag",
+ "dataOutIndirect.frag",
+ "deepRvalue.frag",
+ "depthOut.frag",
+ "discard-dce.frag",
+ "doWhileLoop.frag",
+ "earlyReturnDiscard.frag",
+ "flowControl.frag",
+ "forLoop.frag",
+ "functionCall.frag",
+ "functionSemantics.frag",
+ "length.frag",
+ "localAggregates.frag",
+ "loops.frag",
+ "loopsArtificial.frag",
+ "matrix.frag",
+ "matrix2.frag",
+ "newTexture.frag",
+ "Operations.frag",
+ "prepost.frag",
+ "simpleFunctionCall.frag",
+ "structAssignment.frag",
+ "structDeref.frag",
+ "structure.frag",
+ "swizzle.frag",
+ "syntaxError.frag",
+ "test.frag",
+ "texture.frag",
+ "types.frag",
+ "uniformArray.frag",
+ "variableArrayIndex.frag",
+ "varyingArray.frag",
+ "varyingArrayIndirect.frag",
+ "voidFunction.frag",
+ "whileLoop.frag",
+ "nonVulkan.frag",
+ "spv.atomic.comp",
+ })),
+ FileNameAsCustomTestName
+);
+// clang-format on
+
+} // anonymous namespace
+} // namespace glslangtest