Adding the last character in a null terminated string

Change-Id: I4a9cad0974c8b9f1474e79e5c3d78b88dd4b004c

unit_tests/CMakeLists.txt

@@ -318,6 +318,7 @@ set(TEST_KERNELS
   test_files/CopyBuffer_simd32.cl
   test_files/CopyBuffer_simd8.cl
   test_files/copybuffer_with_header.cl
+  test_files/emptykernel.cl
   test_files/kernel_data_param.cl
   test_files/kernel_num_args.cl
   test_files/media_kernels_backend.cl

unit_tests/offline_compiler/offline_compiler_tests.cpp

@@ -488,6 +488,27 @@ TEST(OfflineCompilerTest, buildSourceCode) {
     EXPECT_NE(0u, mockOfflineCompiler->getGenBinarySize());
 }
 
+TEST(OfflineCompilerTest, GivenKernelWhenNoCharAfterKernelSourceThenBuildWithSuccess) {
+    auto mockOfflineCompiler = std::unique_ptr<MockOfflineCompiler>(new MockOfflineCompiler());
+    ASSERT_NE(nullptr, mockOfflineCompiler);
+
+    auto retVal = mockOfflineCompiler->buildSourceCode();
+    EXPECT_EQ(CL_INVALID_PROGRAM, retVal);
+
+    const char *argv[] = {
+        "cloc",
+        "-file",
+        "test_files/emptykernel.cl",
+        "-device",
+        gEnvironment->devicePrefix.c_str()};
+
+    retVal = mockOfflineCompiler->initialize(ARRAY_COUNT(argv), argv);
+    EXPECT_EQ(CL_SUCCESS, retVal);
+
+    retVal = mockOfflineCompiler->buildSourceCode();
+    EXPECT_EQ(CL_SUCCESS, retVal);
+}
+
 TEST(OfflineCompilerTest, generateElfBinary) {
     auto mockOfflineCompiler = std::unique_ptr<MockOfflineCompiler>(new MockOfflineCompiler());
     ASSERT_NE(nullptr, mockOfflineCompiler);

unit_tests/test_files/emptykernel.cl

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2018, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is 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 Software.
+ *
+ * THE SOFTWARE IS 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 SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+ /* No character after the last "}" */
+ __kernel void empty()
+{
+}