"There are no inline completion context" error in inline completion test when it runs in CI

IntelliJ Platform
1

Hi! I build IntelliJ plugin with inline completion provider.
I have a test to check completion for my provider.
Test pass fine on my machine, but I get “There are no inline completion context.” error in CI.

The question is, why that can happen and how can I fix it? Could you please give a clue, what is direction to debug the issue and where to look into :slight_smile:
Do not see direct connection to environment where tests are executed

The test is like that:

@RunWith(JUnit4::class)
class InlineCompletionTest : BasePlatformTestCase() {
    private val mockService = mockk<MyService>()

    override fun runInDispatchThread(): Boolean {
        // Requested by CodeInsightTestFixture.testInlineCompletion
        return false
    }

    @Before
    fun setupInlineCompletionProvider() {
        val provider = MyCompletionProvider { mockService }
        InlineCompletionHandler.registerTestHandler(provider, testRootDisposable)
    }

    @Test
    fun `user can accept inline suggestion`() = myFixture.testInlineCompletion {
        // Arrange
        init(KotlinFileType.INSTANCE, "fun <caret>")
        mockSingleSuggestion("ain(args: List<String>)")

        // Act & Assert
        typeChar('m')
        delay()
        assertInlineRender("ain(args: List<String>)")
        insert()
        assertFileContent("fun main(args: List<String>)<caret>")
    }

    //...

The error is like that:

java.lang.AssertionError: [There are no inline completion context.] 
Expecting actual not to be null
	at com.intellij.codeInsight.inline.completion.InlineCompletionLifecycleTestDSL$assertContextExists$2.invokeSuspend(InlineCompletionLifecycleTestDSL.kt:277)
	at com.intellij.codeInsight.inline.completion.InlineCompletionLifecycleTestDSL$assertContextExists$2.invoke(InlineCompletionLifecycleTestDSL.kt)
	at com.intellij.codeInsight.inline.completion.InlineCompletionLifecycleTestDSL$assertContextExists$2.invoke(InlineCompletionLifecycleTestDSL.kt)
	at kotlinx.coroutines.intrinsics.UndispatchedKt.startUndispatchedOrReturn(Undispatched.kt:62)
	at kotlinx.coroutines.BuildersKt__Builders_commonKt.withContext(Builders.common.kt:163)
	at kotlinx.coroutines.BuildersKt.withContext(Unknown Source)
	at com.intellij.codeInsight.inline.completion.InlineCompletionLifecycleTestDSL.assertContextExists(InlineCompletionLifecycleTestDSL.kt:275)
	at com.intellij.codeInsight.inline.completion.InlineCompletionLifecycleTestDSL$assertInlineRender$2.invokeSuspend(InlineCompletionLifecycleTestDSL.kt:253)
	at _COROUTINE._BOUNDARY._(CoroutineDebugging.kt:42)
    ...
2

The issue was with enabled check in provider. In CI, it computed to false - thus no context was found