Added simple C smoke test to prevent future C breakages.

This C file just compiles a single shader, but is sufficient
to make sure that shaderc.h can always be included from C.

1 files changed, 54 insertions, 0 deletions

diff --git a/libshaderc/src/shaderc_c_smoke_test.c b/libshaderc/src/shaderc_c_smoke_test.c
new file mode 100644
index 0000000..80c4048
--- /dev/null
+++ b/libshaderc/src/shaderc_c_smoke_test.c
@@ -0,0 +1,54 @@
+// Copyright 2016 The Shaderc Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "shaderc/shaderc.h"
+#include <assert.h>
+#include <string.h>
+
+// Because we want to test this as a plain old C file, we cannot use
+// gtest, so just run a simple smoke test.
+
+int main() {
+  const char* test_program =
+      "#version 310 es\n"
+      "layout(location = 0) in highp vec4 vtxColor;\n"
+      "layout(location = 0) out highp vec4 outColor;\n"
+      "void main() {\n"
+      "  outColor = vtxColor;"
+      "}\n";
+  shaderc_compiler_t compiler;
+  shaderc_compilation_result_t result;
+  shaderc_compile_options_t options;
+
+  compiler = shaderc_compiler_initialize();
+  options = shaderc_compile_options_initialize();
+  shaderc_compile_options_add_macro_definition(options, "FOO", 3, "1", 1);
+  result = shaderc_compile_into_spv(
+      compiler, test_program, strlen(test_program),
+      shaderc_glsl_fragment_shader, "a.glsl", "main", options);
+
+  assert(result);
+
+  if (shaderc_result_get_compilation_status(result) !=
+      shaderc_compilation_status_success) {
+    // Early exit on failure.
+    return -1;
+  }
+  shaderc_result_release(result);
+  shaderc_compile_options_release(options);
+  shaderc_compiler_release(compiler);
+
+  return 0;
+}
+