test: correct assertion argument order

This conforms assertions to follow the argument order of
asserted then actual, and adds more explicit messages
to describe assertion failures.

PR-URL: #23618
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>

test/sequential/test-inspector.js

@@ -8,7 +8,12 @@ const assert = require('assert');
 const { NodeInstance } = require('../common/inspector-helper.js');
 
 function checkListResponse(response) {
-  assert.strictEqual(1, response.length);
+  const expectedLength = 1;
+  assert.strictEqual(
+    response.length,
+    expectedLength,
+    `Expected response length ${response.length} to be ${expectedLength}.`
+  );
   assert.ok(response[0].devtoolsFrontendUrl);
   assert.ok(
     /ws:\/\/localhost:\d+\/[0-9A-Fa-f]{8}-/
@@ -41,7 +46,11 @@ function assertScopeValues({ result }, expected) {
   for (const actual of result) {
     const value = expected[actual.name];
     if (value) {
-      assert.strictEqual(value, actual.value.value);
+      assert.strictEqual(
+        actual.value.value,
+        value,
+        `Expected scope values to be ${actual.value.value} instead of ${value}.`
+      );
       unmatched.delete(actual.name);
     }
   }
@@ -117,15 +126,24 @@ async function testBreakpoint(session) {
       'generatePreview': true
     }
   });
-
-  assert.strictEqual(1002, result.value);
+  const expectedEvaluation = 1002;
+  assert.strictEqual(
+    result.value,
+    expectedEvaluation,
+    `Expected evaluation to be ${expectedEvaluation}, got ${result.value}.`
+  );
 
   result = (await session.send({
     'method': 'Runtime.evaluate', 'params': {
       'expression': '5 * 5'
     }
   })).result;
-  assert.strictEqual(25, result.value);
+  const expectedResult = 25;
+  assert.strictEqual(
+    result.value,
+    expectedResult,
+    `Expected Runtime.evaluate to be ${expectedResult}, got ${result.value}.`
+  );
 }
 
 async function testI18NCharacters(session) {
@@ -288,7 +306,13 @@ async function runTest() {
   await testI18NCharacters(session);
   await testCommandLineAPI(session);
   await session.runToCompletion();
-  assert.strictEqual(55, (await child.expectShutdown()).exitCode);
+  const expectedExitCode = 55;
+  const { exitCode } = await child.expectShutdown();
+  assert.strictEqual(
+    exitCode,
+    expectedExitCode,
+    `Expected exit code to be ${expectedExitCode} but got ${expectedExitCode}.`
+  );
 }
 
 runTest();