Issue SimonKagstrom#42: tests: Add (failing) test for clang coverage

tests/CMakeLists.txt

@@ -104,6 +104,12 @@ add_executable(s short-file.c)
 add_executable(fork+exec fork/fork+exec.c)
 add_executable(thread-test threads/thread-main.c)
 
+if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
+	add_executable(sanitizer-coverage sanitizer-coverage.c)
+	set_target_properties(sanitizer-coverage PROPERTIES COMPILE_FLAGS "-g -fsanitize=address -fsanitize-coverage=bb")
+	set_target_properties(sanitizer-coverage PROPERTIES LINK_FLAGS "-fsanitize=address -fsanitize-coverage=bb")
+endif()
+
 add_executable(pie pie.c)
 set_target_properties(pie PROPERTIES POISITION_INDEPENDENT_CODE True)
 

tests/sanitizer-coverage.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+static int fn(int a)
+{
+	printf("fn %d\n", a);
+
+	a = a + 1;
+	a = a + 2;
+
+	return a + 3;
+}
+
+int main(int argc, const char *argv[])
+{
+	if (argc == 1) {
+		int out = fn(argc + 1);
+
+		out++;
+
+		return out;
+	} else {
+		fn(5);
+	}
+
+	return 0;
+}

tests/tools/compiled.py

@@ -452,3 +452,24 @@ def runTest(self):
         dom = parse_cobertura.parseFile(testbase.outbase + "/kcov/test_daemon/cobertura.xml")
         assert parse_cobertura.hitsPerLine(dom, "test-daemon.cc", 31) == 1
 
+
+class address_sanitizer_coverage(testbase.KcovTestCase):
+    @unittest.skipIf(not sys.platform.startswith("linux"), "Linux-only")
+    @unittest.expectedFailure
+    def runTest(self):
+        self.setUp()
+        if (not os.path.isfile(testbase.testbuild + "/sanitizer-coverage")):
+            print "Clang-only"
+            return True
+        rv,o = self.do(testbase.kcov + " --clang " + testbase.outbase + "/kcov " + testbase.testbuild + "/sanitizer-coverage", False)
+
+        dom = parse_cobertura.parseFile(testbase.outbase + "/kcov/sanitizer-coverage/cobertura.xml")
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 5) == 1
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 7) == 1
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 8) == 1
+
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 16) == 1
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 18) == 1
+
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 22) == 0
+        assert parse_cobertura.hitsPerLine(dom, "sanitizer-coverage.c", 25) == 0