Add test

Author: web-flow

test/testnullpointer.cpp

@@ -166,6 +166,7 @@ class TestNullPointer : public TestFixture {
         TEST_CASE(nullpointerStdStream);
         TEST_CASE(nullpointerSmartPointer);
         TEST_CASE(nullpointerOutOfMemory);
+        TEST_CASE(nullpointerOutOfResources);
         TEST_CASE(functioncall);
         TEST_CASE(functioncalllibrary); // use Library to parse function call
         TEST_CASE(functioncallDefaultArguments);
@@ -4234,6 +4235,18 @@ class TestNullPointer : public TestFixture {
         }
     }
 
+    void nullpointerOutOfResources() {
+        check("void f() {\n"
+              "    FILE* fid = fopen(\"x.txt\", \"w\");\n"              
+              "    fprintf(fid, \"abcdef\");\n"
+              "    fclose(fid);\n"
+              "}\n");
+        ASSERT_EQUALS(
+            "[test.cpp:3:13]: (warning) If resource allocation fails, then there is a possible null pointer dereference: fid [nullPointerOutOfResources]\n"
+            "[test.cpp:4:12]: (warning) If resource allocation fails, then there is a possible null pointer dereference: fid [nullPointerOutOfResources]\n",
+            errout_str());
+    }
+
     void functioncalllibrary() {
         SimpleTokenizer tokenizer(settingsDefault,*this,false);
         const char code[] = "void f() { int a,b,c; x(a,b,c); }";