unsafeClassCanLeak test

Author: ludviggunne

test/testmemleak.cpp

@@ -533,6 +533,7 @@ class TestMemleakInClass : public TestFixture {
         TEST_CASE(class25); // ticket #4367 - false positive implementation for destructor is not seen
         TEST_CASE(class26); // ticket #10789
         TEST_CASE(class27); // ticket #8126
+        TEST_CASE(class28);
 
         TEST_CASE(staticvar);
 
@@ -1484,6 +1485,15 @@ class TestMemleakInClass : public TestFixture {
         ASSERT_EQUALS("[test.cpp:6:11]: (style) Class 'S' is unsafe, 'S::a' can leak by wrong usage. [unsafeClassCanLeak]\n", errout_str());
     }
 
+    void class28() {
+        check("struct S {\n"
+              "    explicit S(char *name) { m_fd = mkstemp(name); }\n"
+              "    ~S() { /* close(m_fd); */ }\n"
+              "    int m_fd;\n"
+              "};\n");
+        ASSERT_EQUALS("[test.cpp:4:9]: (style) Class 'S' is unsafe, 'S::m_fd' can leak by wrong usage. [unsafeClassCanLeak]\n", errout_str());
+    }
+
     void staticvar() {
         check("class A\n"
               "{\n"