Consolidate label conversion tests + add timeLog

console/console-label-conversion.any.js

@@ -0,0 +1,37 @@
+"use strict";
+// https://console.spec.whatwg/org/#counting
+// https://console.spec.whatwg/org/#timing
+
+// toString() console label test strings
+const toStringAssertionEnding = 'must call toString() on label when label is an object';
+const toStringTestNameEnding = 'label gets converted to string via label.toString() when label is an object';
+
+// toString error re-throwing console test strings
+const toStringRethrowAssertionEnding = 'must re-throw any exceptions thrown by label.toString() conversion';
+const toStringRethrowTestNameEnding = 'throws exceptions generated by erroneous label.toString() conversion';
+
+const methods = ['count', 'countReset', 'time', 'timeLog', 'timeEnd'];
+
+for (const method of methods) {
+  test(() => {
+    let labelToStringCalled = false;
+
+    console[method]({
+      toString() {
+        labelToStringCalled = true;
+      }
+    });
+
+    assert_true(labelToStringCalled, `${method}() ${toStringAssertionEnding}`);
+  }, `console.${method}()'s ${toStringTestNameEnding}`);
+
+  test(() => {
+    assert_throws({name: 'Error'}, () => {
+      console[method]({
+        toString() {
+          throw new Error('conversion error');
+        }
+      });
+    }, `${method} ${toStringRethrowAssertionEnding}`);
+  }, `console.${method}() ${toStringRethrowTestNameEnding}`);
+}