Mocking map invocation via chained call stopped working

[cbxp]

Mockk version: 1.10.5
Kotlin version: 1.4.21
OS: MacOS Big Sur 11.2
JVM: adopt-openjdk-11 version 11.0.10

Java class under test:

import java.util.Map;

public interface Bar {
  Map<String, Integer> getAttributes();
}

Test:

val bar = mockk<Bar>(relaxed = true)
every { bar.attributes["foo"] } returns null
bar.attributes["foo"]

Expected (as in version 1.9.3)
bar.attributes should return a Map

Actual
NullPointerException because bar.attributes is null

[Raibaz]

Does this still happen if you declare your mock as a relaxed mock, i.e. val bar = mockk<Bar>(relaxed = true)?

[cbxp]

@Raibaz It still fails. Updated the example in original message.

[omesquita]

I have a same problem when i use val bar = mockk<Bar>(relaxed = true) and every { bar.list.isEmpty() } returns false.

Do someone find a solution?

[Raibaz]

This looks like a bug in the AnyValueGenerator; it should be returning an empty map for bar.attributes if the mock is relaxed, yet it seems like it's returning null.

[omesquita]

Thank you @Raibaz. Can you me say how i fix it?

[pedrofsn]

Hello guys. Any updates about this issue?

[stale]

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[omesquita]

Hi! Anyone have a solution for this issue?