Added tests for preprocessor_stringify, fails for '

jyn514 · May 25, 2020 · b8bab0a · b8bab0a
1 parent 3941074
commit b8bab0a
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/src/lex/cpp.rs b/src/lex/cpp.rs
@@ -1644,4 +1644,17 @@ int main(){}
         );
         // TODO test for #includes
     }
+    #[test]
+    fn preprocess_stringify() {
+        let assert_same_stringified = |cpp: &str, cpp_src: &str| {
+            assert_same_exact(
+                &format!("#define xstr(a) #a\nxstr({})", cpp),
+                &format!("\n{}", cpp_src));
+        };
+        assert_same_stringified("a + b", r#""a + b""#);
+        assert_same_stringified(r#"b   	 +"c""#, r#""b +\"c\"""#);
+        assert_same_stringified(r#""+\\+\n+\"+""#, r#""\"+\\\\+\\n+\\\"+\"""#);
+        assert_same_stringified(r#""\'""#, r#""\"\\'\""#);  // TODO figure out why ' is different
+        // TODO test unicode chars
+    }
 }