test: remove ambiguous error messages from test_error

assert.strictEqual accepts 3 arguments, the last of which allows for
user-specified error message to be thrown when the assertion fails.
Unfortunately, this error message is less helpful than the default when
it is vague. This commit removes vague, user-specified error messages,
instead relying on clearer, default error messages.

Backport-PR-URL: #19447
PR-URL: #17812
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jon Moss <me@jonathanmoss.me>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

test/addons-napi/test_error/test.js

@@ -83,56 +83,34 @@ common.expectsError(
 
 let error = test_error.createError();
 assert.ok(error instanceof Error, 'expected error to be an instance of Error');
-assert.strictEqual(error.message, 'error', 'expected message to be "error"');
+assert.strictEqual(error.message, 'error');
 
 error = test_error.createRangeError();
 assert.ok(error instanceof RangeError,
           'expected error to be an instance of RangeError');
-assert.strictEqual(error.message,
-                   'range error',
-                   'expected message to be "range error"');
+assert.strictEqual(error.message, 'range error');
 
 error = test_error.createTypeError();
 assert.ok(error instanceof TypeError,
           'expected error to be an instance of TypeError');
-assert.strictEqual(error.message,
-                   'type error',
-                   'expected message to be "type error"');
+assert.strictEqual(error.message, 'type error');
 
 error = test_error.createErrorCode();
 assert.ok(error instanceof Error, 'expected error to be an instance of Error');
-assert.strictEqual(error.code,
-                   'ERR_TEST_CODE',
-                   'expected code to be "ERR_TEST_CODE"');
-assert.strictEqual(error.message,
-                   'Error [error]',
-                   'expected message to be "Error [error]"');
-assert.strictEqual(error.name,
-                   'Error [ERR_TEST_CODE]',
-                   'expected name to be "Error [ERR_TEST_CODE]"');
+assert.strictEqual(error.code, 'ERR_TEST_CODE');
+assert.strictEqual(error.message, 'Error [error]');
+assert.strictEqual(error.name, 'Error [ERR_TEST_CODE]');
 
 error = test_error.createRangeErrorCode();
 assert.ok(error instanceof RangeError,
           'expected error to be an instance of RangeError');
-assert.strictEqual(error.message,
-                   'RangeError [range error]',
-                   'expected message to be "RangeError [range error]"');
-assert.strictEqual(error.code,
-                   'ERR_TEST_CODE',
-                   'expected code to be "ERR_TEST_CODE"');
-assert.strictEqual(error.name,
-                   'RangeError [ERR_TEST_CODE]',
-                   'expected name to be "RangeError[ERR_TEST_CODE]"');
+assert.strictEqual(error.message, 'RangeError [range error]');
+assert.strictEqual(error.code, 'ERR_TEST_CODE');
+assert.strictEqual(error.name, 'RangeError [ERR_TEST_CODE]');
 
 error = test_error.createTypeErrorCode();
 assert.ok(error instanceof TypeError,
           'expected error to be an instance of TypeError');
-assert.strictEqual(error.message,
-                   'TypeError [type error]',
-                   'expected message to be "TypeError [type error]"');
-assert.strictEqual(error.code,
-                   'ERR_TEST_CODE',
-                   'expected code to be "ERR_TEST_CODE"');
-assert.strictEqual(error.name,
-                   'TypeError [ERR_TEST_CODE]',
-                   'expected name to be "TypeError[ERR_TEST_CODE]"');
+assert.strictEqual(error.message, 'TypeError [type error]');
+assert.strictEqual(error.code, 'ERR_TEST_CODE');
+assert.strictEqual(error.name, 'TypeError [ERR_TEST_CODE]');