val steps = sanityCheck.steps.items
        val gradleBuildStep = gradleStep(steps, 0)
        gradleBuildStep.assertTasks("tasks")
    }

    @Test
    fun `nightly promotion build type runs three gradle invocations`() {
        val model = setupModelFor("release")
        val nightlySnapshot = model.findBuildTypeByName("Nightly Snapshot")

        val steps = nightlySnapshot.steps.items
        assertEquals(3, steps.size)

When that directory changes between Gradle invocations, the state is discarded and recreated.
Typically, the Gradle user home directory does not change for a given process, so this is effectively process state.

The build process state is managed by the `BuildProcessState` class. An instance is created once for a given process.

### Build session state

A "build session" represents a single invocation of Gradle, for example when you run `gradlew build`.