| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You under the Apache License, Version 2.0 |
| // (the "License"); you may not use this file except in compliance with |
| // the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package beam |
| |
| import ( |
| "strings" |
| "testing" |
| ) |
| |
| func TestParDoForSize(t *testing.T) { |
| var tests = []struct { |
| name string |
| outputDim int |
| want string |
| }{ |
| {"zero outputs", 0, "ParDo0"}, |
| {"one output", 1, "ParDo"}, |
| {"two outputs",2,"ParDo2"}, |
| {"seven outputs",7,"ParDo7"}, |
| {"eight outputs",8,"ParDoN"}, |
| {"more than 7 outputs", 10, "ParDoN"}, |
| } |
| |
| for _, tt := range tests { |
| testName := tt.name |
| t.Run(testName, func(t *testing.T) { |
| got := parDoForSize(tt.outputDim) |
| if got != tt.want { |
| t.Errorf("RecommendParDo(%v) = %v, want %v", tt.outputDim, got, tt.want) |
| } |
| }) |
| } |
| } |
| |
| // testFunction is used in TestFormatParDoError test to validate that the |
| // error message returned by the formatParDoError function is correct. This |
| // function specifically is named and not anonymous to ensure that returned |
| // error message contains the correct function name which was violating the |
| // output dimension alignment. |
| func testFunction() int64 { |
| return 42 |
| } |
| |
| func TestFormatParDoError(t *testing.T) { |
| got := formatParDoError(testFunction, 2, 1) |
| want := "beam.testFunction has 2 outputs, but ParDo requires 1 outputs, use ParDo2 instead." |
| if !strings.Contains(got, want) { |
| t.Errorf("formatParDoError(testFunction,2,1) = %v, want = %v", got, want) |
| } |
| } |