adds missing test from postgres select actions by plan id

store/postgres_test.go

@@ -265,6 +265,30 @@ func TestSelectActionsByPlanID(t *testing.T) {
 	}
 }
 
+func TestSelectActionsByPlanIDErr(t *testing.T) {
+	// set up  test
+	assert := assert.New(t)
+
+	idToUse := 1
+
+	str, mock := getDbMock(t)
+
+	mock.ExpectQuery("^SELECT action_id, action_description, estimated_chunks, completed_chunks, completed_on, created_at, updated_at, plan_id FROM actions WHERE plan_id = \\$1$").
+		WithArgs(idToUse).
+		WillReturnError(fmt.Errorf("example error"))
+
+	// function under test
+	actions, err := str.SelectActionsByPlanID(&models.Plan{PlanID: int64(idToUse)})
+
+	// test results
+	assert.NotNil(err)
+	assert.Nil(actions)
+
+	if err := mock.ExpectationsWereMet(); err != nil {
+		t.Errorf("unfulfilled expectations: %s", err)
+	}
+}
+
 func TestSelectActionById(t *testing.T) {
 	// set up  test
 	assert := assert.New(t)