LibJS: Print the expected and received value on expect.toEqual() failure

'ExpectationError' is hardly an actionable error message.
Author: https://github.com/alimpfard Commit: https://github.com/SerenityOS/serenity/commit/0fe97cdfe4 Pull-request: https://github.com/SerenityOS/serenity/pull/12719 Reviewed-by: https://github.com/DavidLindbom Reviewed-by: https://github.com/linusg
2022-02-22 07:47:48 +03:30 · 2022-02-22 07:47:48 +03:30 · 0fe97cdfe4 · 2024-07-17 18:24:21 +09:00
commit 0fe97cdfe4
parent 6bb0c09bc1
1 changed files with 7 additions and 1 deletions
--- a/Userland/Libraries/LibJS/Tests/test-common.js
+++ b/Userland/Libraries/LibJS/Tests/test-common.js
@ -280,7 +280,13 @@ class ExpectationError extends Error {

        toEqual(value) {
            this.__doMatcher(() => {
-                this.__expect(deepEquals(this.target, value));
+                this.__expect(
+                    deepEquals(this.target, value),
+                    () =>
+                        `Expected _${valueToString(value)}_, but got _${valueToString(
+                            this.target
+                        )}_`
+                );
            });
        }