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adding test helper for asserting states whilst combining previous updates

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This commit is contained in:
Adam Brown 2022-03-02 12:18:50 +00:00
parent c15e908a15
commit 4225f62120
1 changed files with 11 additions and 0 deletions
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11
vector/src/test/java/im/vector/app/test/Extensions.kt
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@ -55,6 +55,17 @@ class ViewModelTest<S, VE>(
return this
}
fun assertStatesWithPrevious(initial: S, vararg expected: S.() -> S): ViewModelTest<S, VE> {
val reducedExpectedStates = expected.fold(mutableListOf(initial)) { acc, curr ->
val next = curr.invoke(acc.last())
acc.add(next)
acc
}
states.assertValues(reducedExpectedStates)
return this
}
fun assertStates(expected: List<S>): ViewModelTest<S, VE> {
states.assertValues(expected)
return this