#3180. Simplify JSAnyOperation tests.

LibTest/js_interop/JSAnyOperatorExtension/add_t01.dart

@@ -6,37 +6,49 @@
 /// The result of `this + any` in JavaScript.
 ///
 /// @description Check that `add` returns result of `this + any` in JavaScript.
-/// Test an empty JS object as `this`.
 /// @author [email protected]
 
 import 'dart:js_interop';
 import 'dart:js_interop_unsafe';
-import '../../../Utils/expect.dart';
 import '../js_utils.dart';
 
-main() {
+testAdd(JSAny? underTest) {
   eval(r'''
-    var object = {};
-    var one = object + 1;         // String "[object Object]1"
-    var string = object + "s";    // String "[object Object]s"
-    var a1 = object + [];         // String "[object Object]"
-    var a2 = object + [1, 2];     // String "[object Object]1,2"
-    var o1 = object + {};         // String "[object Object][object Object]"
-    var o2 = object + {"a": "b"}; // String "[object Object][object Object]"
-    var n = object + null;        // String "[object Object]null"
-    var b1 = object + true;       // String "[object Object]true"
-    var b2 = object + false;      // String "[object Object]false"
+    var addNum = underTest + 2; 
+    var addString = underTest + "text";
+    var addNull = underTest + null;
+    var addNaN = underTest + (0 / 0);
+    var addArray = underTest + [1, 2];
+    var addTrue = underTest + true;
   ''');
 
-  JSObject o = JSObject();
-  Expect.equals(globalContext["one"], o.add(1.toJS));
-  Expect.equals(globalContext["string"], o.add("s".toJS));
-  Expect.equals(globalContext["a1"], o.add([].jsify()));
-  Expect.equals(globalContext["a2"], o.add([1, 2].jsify()));
-  Expect.equals(globalContext["o1"], o.add(JSObject()));
-  Expect.equals(globalContext["o2"], o.add({"a": "b"}.jsify()));
-  Expect.equals(globalContext["n"], o.add(null.jsify()));
-  Expect.equals(globalContext["n"], o.add(null));
-  Expect.equals(globalContext["b1"], o.add(true.toJS));
-  Expect.equals(globalContext["b2"], o.add(false.toJS));
+  jsExpectEquals(globalContext["addNum"], underTest.add(2.toJS));
+  jsExpectEquals(globalContext["addString"], underTest.add("text".toJS));
+  jsExpectEquals(globalContext["addNull"], underTest.add(null));
+  jsExpectEquals(globalContext["addNaN"], underTest.add((0 / 0).toJS));
+  jsExpectEquals(globalContext["addArray"], underTest.add([1, 2].jsify()));
+  jsExpectEquals(globalContext["addTrue"], underTest.add(true.toJS));
+}
+
+main() {
+  eval("globalThis.underTest = 42;");
+  testAdd(42.toJS);
+
+  eval("globalThis.underTest = 'Some text';");
+  testAdd('Some text'.toJS);
+
+  eval("globalThis.underTest = null;");
+  testAdd(null);
+
+  eval("globalThis.underTest = 0 / 0;");
+  testAdd((0 / 0).jsify());
+
+  eval("globalThis.underTest = [];");
+  testAdd([].jsify());
+
+  eval("globalThis.underTest = false;");
+  testAdd(false.toJS);
+
+  eval("globalThis.underTest = {};");
+  testAdd(JSObject());
 }