1 files changed, 24 insertions, 0 deletions
diff --git a/tests/ui/macros/syntax-extension-cfg.rs b/tests/ui/macros/syntax-extension-cfg.rs
new file mode 100644
index 000000000..2e929fc1d
--- /dev/null
+++ b/tests/ui/macros/syntax-extension-cfg.rs
@@ -0,0 +1,24 @@
+// run-pass
+// compile-flags: --cfg foo --cfg qux="foo"
+
+
+pub fn main() {
+    // check
+    if ! cfg!(foo) { panic!() }
+    if   cfg!(not(foo)) { panic!() }
+
+    if ! cfg!(qux="foo") { panic!() }
+    if   cfg!(not(qux="foo")) { panic!() }
+
+    if ! cfg!(all(foo, qux="foo")) { panic!() }
+    if   cfg!(not(all(foo, qux="foo"))) { panic!() }
+    if   cfg!(all(not(all(foo, qux="foo")))) { panic!() }
+
+    if cfg!(not_a_cfg) { panic!() }
+    if cfg!(all(not_a_cfg, foo, qux="foo")) { panic!() }
+    if cfg!(all(not_a_cfg, foo, qux="foo")) { panic!() }
+    if ! cfg!(any(not_a_cfg, foo)) { panic!() }
+
+    if ! cfg!(not(not_a_cfg)) { panic!() }
+    if ! cfg!(all(not(not_a_cfg), foo, qux="foo")) { panic!() }
+}