1 files changed, 53 insertions, 0 deletions
diff --git a/clang-tools-extra/test/clang-tidy/bugprone-swapped-arguments.cpp b/clang-tools-extra/test/clang-tidy/bugprone-swapped-arguments.cpp
new file mode 100644
index 00000000000..06fb2d869f6
--- /dev/null
+++ b/clang-tools-extra/test/clang-tidy/bugprone-swapped-arguments.cpp
@@ -0,0 +1,53 @@
+// RUN: %check_clang_tidy %s bugprone-swapped-arguments %t
+
+void F(int, double);
+
+int SomeFunction();
+
+template <typename T, typename U>
+void G(T a, U b) {
+  F(a, b); // no-warning
+  F(2.0, 4);
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// CHECK-FIXES: F(4, 2.0)
+}
+
+void foo() {
+  F(1.0, 3);
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// CHECK-FIXES: F(3, 1.0)
+
+#define M(x, y) x##y()
+
+  double b = 1.0;
+  F(b, M(Some, Function));
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// CHECK-FIXES: F(M(Some, Function), b);
+
+#define N F(b, SomeFunction())
+
+  N;
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// In macro, don't emit fixits.
+// CHECK-FIXES: #define N F(b, SomeFunction())
+
+  G(b, 3);
+  G(3, 1.0);
+  G(0, 0);
+
+  F(1.0, 1.0);    // no-warning
+  F(3, 1.0);      // no-warning
+  F(true, false); // no-warning
+  F(0, 'c');      // no-warning
+
+#define APPLY(f, x, y) f(x, y)
+  APPLY(F, 1.0, 3);
+// CHECK-MESSAGES: :[[@LINE-1]]:9: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// CHECK-FIXES: APPLY(F, 3, 1.0);
+
+#define PARAMS 1.0, 3
+#define CALL(P) F(P)
+  CALL(PARAMS);
+// CHECK-MESSAGES: :[[@LINE-1]]:3: warning: argument with implicit conversion from 'int' to 'double' followed by argument converted from 'double' to 'int', potentially swapped arguments.
+// In macro, don't emit fixits.
+}