test: only inspect on failure

The inspection was done in all cases so far and that's not necessary.
Therefore this changed this behavior to only inspect the input on
failure cases.

PR-URL: #26360
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

test/parallel/test-path-join.js

@@ -131,11 +131,12 @@ joinTests.forEach((test) => {
       } else {
         os = 'posix';
       }
-      const message =
-        `path.${os}.join(${test[0].map(JSON.stringify).join(',')})\n  expect=${
+      if (actual !== expected && actualAlt !== expected) {
+        const delimiter = test[0].map(JSON.stringify).join(',');
+        const message = `path.${os}.join(${delimiter})\n  expect=${
           JSON.stringify(expected)}\n  actual=${JSON.stringify(actual)}`;
-      if (actual !== expected && actualAlt !== expected)
         failures.push(`\n${message}`);
+      }
     });
   });
 });

test/parallel/test-path-relative.js

@@ -56,12 +56,13 @@ relativeTests.forEach((test) => {
   test[1].forEach((test) => {
     const actual = relative(test[0], test[1]);
     const expected = test[2];
-    const os = relative === path.win32.relative ? 'win32' : 'posix';
-    const message = `path.${os}.relative(${
-      test.slice(0, 2).map(JSON.stringify).join(',')})\n  expect=${
-      JSON.stringify(expected)}\n  actual=${JSON.stringify(actual)}`;
-    if (actual !== expected)
+    if (actual !== expected) {
+      const os = relative === path.win32.relative ? 'win32' : 'posix';
+      const message = `path.${os}.relative(${
+        test.slice(0, 2).map(JSON.stringify).join(',')})\n  expect=${
+        JSON.stringify(expected)}\n  actual=${JSON.stringify(actual)}`;
       failures.push(`\n${message}`);
+    }
   });
 });
 assert.strictEqual(failures.length, 0, failures.join(''));