Dashboard Alerting keep state issues

couple_tests_error_keep_state.go

		{
			name:     "pending -> error(keep) with for duration have passed",
			expected: models.AlertStatePending,
			applyFn: func(ec *EvalContext) {
				ec.PrevAlertState = models.AlertStatePending
				ec.Rule.ExecutionErrorState = models.ExecutionErrorKeepState
				ec.Error = errors.New("test error")
				ec.Rule.For = time.Minute * 5
				ec.Rule.LastStateChange = time.Now().Add(-time.Minute * 20)
			},
		},
		{
			name:     "pending -> error(keep) with for duration have not passed",
			expected: models.AlertStatePending,
			applyFn: func(ec *EvalContext) {
				ec.PrevAlertState = models.AlertStatePending
				ec.Rule.ExecutionErrorState = models.ExecutionErrorKeepState
				ec.Error = errors.New("test error")
				ec.Rule.For = time.Minute * 5
				ec.Rule.LastStateChange = time.Now().Add(-time.Minute * 2)
			},
		},

couple_tests_no_data_keep_state.go

		{
			name:     "pending -> no_data(keep_last)  with for duration have passed",
			expected: models.AlertStatePending,
			applyFn: func(ec *EvalContext) {
				ec.PrevAlertState = models.AlertStatePending
				ec.Rule.NoDataState = models.NoDataKeepState
				ec.NoDataFound = true
				ec.Rule.For = time.Minute * 5
				ec.Rule.LastStateChange = time.Now().Add(-time.Minute * 20)
			},
		},
		{
			name:     "pending -> no_data(keep_last)  with for duration have not passed",
			expected: models.AlertStatePending,
			applyFn: func(ec *EvalContext) {
				ec.PrevAlertState = models.AlertStatePending
				ec.Rule.NoDataState = models.NoDataKeepState
				ec.NoDataFound = true
				ec.Rule.For = time.Minute * 5
				ec.Rule.LastStateChange = time.Now().Add(-time.Minute * 2)
			},
		},