Function assertTaskRunsCollide

backend/tests/collision_helper_test.go:355–364

assertTaskRunsCollide verifies that after both projects have rolled out, their task_run ids collide. Call this from tests that run project B's rollout and depend on task_run collisions. Note: nextProjectID allocates per table, so task_run collision does not imply plan_check_run collision. Each tabl

(ctx context.Context, t *testing.T, ctl *controller, f *collisionFixture)

// Note: nextProjectID allocates per table, so task_run collision does not
// imply plan_check_run collision. Each table needs its own assertion.
func assertTaskRunsCollide(ctx context.Context, t *testing.T, ctl *controller, f *collisionFixture) {
	t.Helper()
	a := require.New(t)

	aTaskRuns, _ := listTaskRunAndTaskUIDs(ctx, t, ctl, f.PlanA.Name)
	bTaskRuns, _ := listTaskRunAndTaskUIDs(ctx, t, ctl, f.PlanB.Name)
	a.Greater(len(aTaskRuns), 0, "project A should have at least one task_run")
	a.Greater(len(bTaskRuns), 0, "project B should have at least one task_run — did you forget to roll out B?")
	assertAtLeastOneUIDCollides(t, aTaskRuns, bTaskRuns, "task_run")
}

// assertTasksCollide verifies that task UIDs collide across projects.
// Task UIDs are embedded in task_run resource names, so we can derive