bug 1366287 - Part 4: Add Rust tests for is_bigint. r=Ms2ger

js/rust/Cargo.toml

@@ -11,6 +11,9 @@ bindgen = {version = "0.33.1", default-features = false} # disable `logging` to
 cmake = "0.1"
 glob = "0.2.11"
 
+[[test]]
+name = "bigint"
+required-features = ["bigint"]
 [[test]]
 name = "callback"
 [[test]]

js/rust/tests/bigint.rs

@@ -0,0 +1,48 @@
+#[macro_use]
+extern crate js;
+
+use js::jsapi::root::JS::CompartmentOptions;
+use js::jsapi::root::JS_NewGlobalObject;
+use js::jsapi::root::JS::OnNewGlobalHookOption;
+use js::jsval::UndefinedValue;
+use js::rust::{Runtime, SIMPLE_GLOBAL_CLASS};
+
+use std::ptr;
+
+#[test]
+fn is_bigint() {
+    let rt = Runtime::new(false).unwrap();
+    let cx = rt.cx();
+
+    unsafe {
+        rooted!(in(cx) let global =
+            JS_NewGlobalObject(cx, &SIMPLE_GLOBAL_CLASS, ptr::null_mut(),
+                               OnNewGlobalHookOption::FireOnNewGlobalHook,
+                               &CompartmentOptions::default())
+        );
+
+        rooted!(in(cx) let mut rval = UndefinedValue());
+        assert!(rt.evaluate_script(global.handle(), "BigInt(0)",
+                                   "test", 1, rval.handle_mut()).is_ok());
+        assert!(rval.is_bigint());
+    }
+}
+
+#[test]
+fn is_not_bigint() {
+    let rt = Runtime::new(false).unwrap();
+    let cx = rt.cx();
+
+    unsafe {
+        rooted!(in(cx) let global =
+            JS_NewGlobalObject(cx, &SIMPLE_GLOBAL_CLASS, ptr::null_mut(),
+                               OnNewGlobalHookOption::FireOnNewGlobalHook,
+                               &CompartmentOptions::default())
+        );
+
+        rooted!(in(cx) let mut rval = UndefinedValue());
+        assert!(rt.evaluate_script(global.handle(), "'not a BigInt'",
+                                   "test", 1, rval.handle_mut()).is_ok());
+        assert!(!rval.is_bigint());
+    }
+}