Laravel test if the response contains errors?

Question

I'm working on a legacy code and trying to use tests to cover the code for later refactoring. In one controller there's a piece of code like this:

return redirect()->route('login')->withErrors(['invalid credentials']);

Here are my assertions for the test:

$response->assertRedirect(route('login'));
$response->assertSessionHasErrors([
    0 => 'invalid credentials'
]);

But the problem is I get the following output:

Session missing error: 'invalid credentials'
Failed asserting that false is true.

Any idea how can I get this done?

Chandan · Accepted Answer · 2021-01-02 14:37:06Z

3

Looking at the source code of assertSessionHasErrors() I think it cannot be done with your use case. The problem is the unnamed array in your withErrors(...) method. I see two options for you:

Change your legacy application into:

return redirect()->route('login')->withErrors(['error' => 'invalid credentials']);

Afterwards you can run your test like so:

$response->assertRedirect(route('login'));    
$response->assertSessionHasErrors([
    'error' => 'invalid credentials'
]);

If you cannot change your legacy application you could use this:

$response->assertRedirect(route('login'));    
$this->assertEquals(session('errors')->getBag('default')->first(),'invalid credentials');

edited Jan 2, 2021 at 14:37

Chandan

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answered Jan 2, 2021 at 11:55

Martin Jess

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