Improve testing

Author: alexbatashev

sycl/test/basic_tests/pluign_overrides.cpp renamed to sycl/test/basic_tests/pluign_overrides_negative.cpp

@@ -1,6 +1,6 @@
 // RUN: %clangxx -fsycl %s -o %t.out
 // RUN: env SYCL_OVERRIDE_PI_OPENCL=opencl_test env SYCL_OVERRIDE_PI_LEVEL_ZERO=l0_test env SYCL_OVERRIDE_PI_CUDA=cuda_test env SYCL_OVERRIDE_PI_ROCM=rocm_test env SYCL_PI_TRACE=-1 %t.out > %t.log 2>&1
-// FileCheck %s --input-file %t.log
+// RUN: FileCheck %s --input-file %t.log
 
 #include <sycl/sycl.hpp>
 

sycl/test/basic_tests/pluign_overrides_positive.cpp

@@ -0,0 +1,43 @@
+// RUN: %clangxx -fsycl -DFAKE_PLUGIN -shared %s -o %t_fake_plugin.so
+// RUN: %clangxx -fsycl %s -o %t.out
+// RUN: env SYCL_OVERRIDE_PI_OPENCL=%t_fake_plugin.so env SYCL_OVERRIDE_PI_LEVEL_ZERO=%t_fake_plugin.so env SYCL_OVERRIDE_PI_CUDA=%t_fake_plugin.so env SYCL_OVERRIDE_PI_ROCM=%t_fake_plugin.so env SYCL_PI_TRACE=-1 %t.out > %t.log 2>&1
+// RUN: FileCheck %s --input-file %t.log
+// REQUIRES: linux
+
+#ifdef FAKE_PLUGIN
+
+#include <CL/sycl/detail/pi.h>
+
+pi_result piPlatformsGet(pi_uint32 NumEntries, pi_platform *Platforms,
+                         pi_uint32 *NumPlatforms) {
+  return PI_INVALID_OPERATION;
+}
+
+pi_result piTearDown(void *) { return PI_SUCCESS; }
+
+pi_result piPluginInit(pi_plugin *PluginInit) {
+  PluginInit->PiFunctionTable.piPlatformsGet = piPlatformsGet;
+  PluginInit->PiFunctionTable.piTearDown = piTearDown;
+  return PI_SUCCESS;
+}
+
+#else
+
+#include <sycl/sycl.hpp>
+
+int main() {
+  try {
+    sycl::platform P{sycl::default_selector{}};
+  } catch (...) {
+    // NOP
+  }
+
+  return 0;
+}
+
+#endif
+
+// CHECK: SYCL_PI_TRACE[basic]: Plugin found and successfully loaded: {{[0-9a-zA-Z_\/\.]+}}_fake_plugin.so
+// CHECK: SYCL_PI_TRACE[basic]: Plugin found and successfully loaded: {{[0-9a-zA-Z_\/\.]+}}_fake_plugin.so
+// CHECK: SYCL_PI_TRACE[basic]: Plugin found and successfully loaded: {{[0-9a-zA-Z_\/\.]+}}_fake_plugin.so
+// CHECK: SYCL_PI_TRACE[basic]: Plugin found and successfully loaded: {{[0-9a-zA-Z_\/\.]+}}_fake_plugin.so