converted TestTokenizerCompileLimits into a Python test (danmar#7847)

Author: firewave

test/cli/other_test.py

@@ -3653,3 +3653,35 @@ def test_debug_syntaxerror_c(tmp_path):
     assert stderr.splitlines() == [
         "{}:2:1: error: Code 'template<...' is invalid C code. [syntaxError]".format(test_file)
     ]
+
+
+def test_ast_max_depth(tmp_path):
+    test_file = tmp_path / 'test.cpp'
+    with open(test_file, "w") as f:
+        f.write(
+"""
+#define PTR1 (* (* (* (*
+#define PTR2 PTR1 PTR1 PTR1 PTR1
+#define PTR3 PTR2 PTR2 PTR2 PTR2
+#define PTR4 PTR3 PTR3 PTR3 PTR3
+
+#define RBR1 ) ) ) )
+#define RBR2 RBR1 RBR1 RBR1 RBR1
+#define RBR3 RBR2 RBR2 RBR2 RBR2
+#define RBR4 RBR3 RBR3 RBR3 RBR3
+
+int PTR4 q4_var RBR4 = 0;
+""")
+
+    args = [
+        '-q',
+        '--template=simple',
+        str(test_file)
+    ]
+
+    exitcode, stdout, stderr = cppcheck(args)
+    assert exitcode == 0, stdout
+    assert stdout.splitlines() == []
+    assert stderr.splitlines() == [
+        '{}:12:5: error: maximum AST depth exceeded [internalAstError]'.format(test_file)
+    ]

test/testtokenize.cpp

@@ -8704,51 +8704,3 @@ class TestTokenizer : public TestFixture {
 };
 
 REGISTER_TEST(TestTokenizer)
-
-class TestTokenizerCompileLimits : public TestFixture
-{
-public:
-    TestTokenizerCompileLimits() : TestFixture("TestTokenizerCompileLimits") {}
-
-private:
-    void run() override
-    {
-        TEST_CASE(test); // #5592 crash: gcc: testsuit: gcc.c-torture/compile/limits-declparen.c
-    }
-
-#define tokenizeAndStringify(...) tokenizeAndStringify_(__FILE__, __LINE__, __VA_ARGS__)
-    std::string tokenizeAndStringify_(const char* file, int linenr, const std::string& code) {
-        // tokenize..
-        SimpleTokenizer tokenizer(settingsDefault, *this);
-        ASSERT_LOC(tokenizer.tokenize(code), file, linenr);
-
-        if (tokenizer.tokens())
-            return tokenizer.tokens()->stringifyList(false, true, false, true, false, nullptr, nullptr);
-        return "";
-    }
-
-    void test() {
-        const char raw_code[] = "#define PTR1 (* (* (* (*\n"
-                                "#define PTR2 PTR1 PTR1 PTR1 PTR1\n"
-                                "#define PTR3 PTR2 PTR2 PTR2 PTR2\n"
-                                "#define PTR4 PTR3 PTR3 PTR3 PTR3\n"
-                                "\n"
-                                "#define RBR1 ) ) ) )\n"
-                                "#define RBR2 RBR1 RBR1 RBR1 RBR1\n"
-                                "#define RBR3 RBR2 RBR2 RBR2 RBR2\n"
-                                "#define RBR4 RBR3 RBR3 RBR3 RBR3\n"
-                                "\n"
-                                "int PTR4 q4_var RBR4 = 0;\n";
-
-        // Preprocess file..
-        simplecpp::OutputList outputList;
-        std::vector<std::string> files;
-        const simplecpp::TokenList tokens1(raw_code, sizeof(raw_code), files, "", &outputList);
-        const std::string filedata = tokens1.stringify();
-        const std::string code = PreprocessorHelper::getcodeforcfg(settingsDefault, *this, filedata, "", "test.c");
-
-        ASSERT_THROW_INTERNAL_EQUALS(tokenizeAndStringify(code), AST, "maximum AST depth exceeded");
-    }
-};
-
-REGISTER_TEST(TestTokenizerCompileLimits)