| // 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 test |
| |
| import ( |
| "beam.apache.org/learning/katas/core_transforms/composite/composite/pkg/common" |
| "beam.apache.org/learning/katas/core_transforms/composite/composite/pkg/task" |
| "github.com/apache/beam/sdks/go/pkg/beam" |
| "github.com/apache/beam/sdks/go/pkg/beam/testing/ptest" |
| "testing" |
| ) |
| |
| const ( |
| wantAugmentedScopeLabel = "CountCharacters" |
| ) |
| |
| type testCase struct { |
| input beam.PCollection |
| want map[string]int |
| } |
| |
| func TestApplyTransform(t *testing.T) { |
| p, s := beam.NewPipelineWithRoot() |
| tests := []testCase{ |
| { |
| input: common.CreateLines(s), |
| want: map[string]int{ |
| "a": 7, |
| "c": 4, |
| "d": 5, |
| "e": 14, |
| "f": 2, |
| "g": 3, |
| "h": 1, |
| "i": 8, |
| "l": 2, |
| "m": 4, |
| "n": 8, |
| "o": 6, |
| "p": 6, |
| "r": 4, |
| "s": 5, |
| "t": 3, |
| "u": 3, |
| "x": 1, |
| "A": 1, |
| "B": 1, |
| }, |
| }, |
| } |
| for _, tt := range tests { |
| gotKV := task.ApplyTransform(s, tt.input) |
| if !hasExpectedAugmentedScope(p) { |
| t.Errorf("no augmented scope with label %s", wantAugmentedScopeLabel) |
| } |
| |
| beam.ParDo(s, func(gotCharacter string, got int, emit func(bool)){ |
| s = s.Scope("TestApplyTransform") |
| want := tt.want[gotCharacter] |
| if got != want { |
| t.Errorf("%s = %v, want %v", gotCharacter, got, want) |
| } |
| }, gotKV) |
| |
| if err := ptest.Run(p); err != nil { |
| t.Error(err) |
| } |
| } |
| } |
| |
| func hasExpectedAugmentedScope(p *beam.Pipeline) bool { |
| edges, _, _ := p.Build() |
| hasAugmentedScope := false |
| for _, k := range edges { |
| hasAugmentedScope = k.Scope().Label == wantAugmentedScopeLabel |
| if hasAugmentedScope { |
| return true |
| } |
| } |
| return false |
| } |
| |