Fail tests if unasserted console calls contain undefined

Author: eps1lon

packages/internal-test-utils/__tests__/ReactInternalTestUtils-test.js

@@ -2179,7 +2179,17 @@ describe('ReactInternalTestUtils console assertions', () => {
         );
         assertConsoleErrorDev([['Hi', {withoutStack: true}]]);
       });
-      expect(message).toMatchInlineSnapshot();
+      expect(message).toMatchInlineSnapshot(`
+        "assertConsoleErrorDev(expected)
+
+        Unexpected error(s) recorded.
+
+        - Expected errors
+        + Received errors
+
+          Hi
+        + TypeError: Cannot read properties of undefined (reading 'stack')     in Foo (at **)"
+      `);
     });
     // @gate __DEV__
     it('fails if only error does not contain a stack', () => {

packages/internal-test-utils/consoleMock.js

@@ -382,8 +382,9 @@ export function createLogAssertion(
 
         // Main logic to check if log is expected, with the component stack.
         if (
-          normalizedMessage === expectedMessage ||
-          normalizedMessage.includes(expectedMessage)
+          expectedMessage !== undefined &&
+          (normalizedMessage === expectedMessage ||
+            normalizedMessage.includes(expectedMessage))
         ) {
           if (isLikelyAComponentStack(normalizedMessage)) {
             if (expectedWithoutStack === true) {