go.uber.org/yarpc@v1.72.1/internal/protoplugin/multi_runner_test.go (about)

     1  // Copyright (c) 2022 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package protoplugin
    22  
    23  import (
    24  	"errors"
    25  	"testing"
    26  
    27  	"github.com/gogo/protobuf/proto"
    28  	"github.com/gogo/protobuf/protoc-gen-gogo/plugin"
    29  	"github.com/stretchr/testify/assert"
    30  	"go.uber.org/multierr"
    31  )
    32  
    33  func TestMultiRunnerRun(t *testing.T) {
    34  	testMultiRunnerRun(
    35  		t,
    36  		[]Runner{
    37  			newSuccessTestRunner("foo"),
    38  			newSuccessTestRunner("bar", "baz"),
    39  			newSuccessTestRunner("bat"),
    40  		},
    41  		[]string{
    42  			"bar",
    43  			"bat",
    44  			"baz",
    45  			"foo",
    46  		},
    47  		nil,
    48  	)
    49  	testMultiRunnerRun(
    50  		t,
    51  		[]Runner{
    52  			newSuccessTestRunner("foo"),
    53  			newSuccessTestRunner("bar", "baz"),
    54  			newSuccessTestRunner(""),
    55  		},
    56  		nil,
    57  		errNoFileName,
    58  	)
    59  	testMultiRunnerRun(
    60  		t,
    61  		[]Runner{
    62  			newSuccessTestRunner("foo"),
    63  			newSuccessTestRunner("bar", "baz"),
    64  			newSuccessTestRunner("foo"),
    65  		},
    66  		nil,
    67  		newErrorDuplicateFileName("foo"),
    68  	)
    69  	testMultiRunnerRun(
    70  		t,
    71  		[]Runner{
    72  			newSuccessTestRunner("foo"),
    73  			newErrorTestRunner(errors.New("value")),
    74  			newSuccessTestRunner("bar"),
    75  		},
    76  		nil,
    77  		errors.New("value"),
    78  	)
    79  	testMultiRunnerRun(
    80  		t,
    81  		[]Runner{
    82  			newSuccessTestRunner("foo"),
    83  			newErrorTestRunner(errors.New("value")),
    84  			newErrorTestRunner(errors.New("value2")),
    85  		},
    86  		nil,
    87  		multierr.Append(
    88  			errors.New("value"),
    89  			errors.New("value2"),
    90  		),
    91  	)
    92  }
    93  
    94  func testMultiRunnerRun(
    95  	t *testing.T,
    96  	runners []Runner,
    97  	expectedFileNames []string,
    98  	expectedError error,
    99  ) {
   100  	response := NewMultiRunner(runners...).Run(nil)
   101  	if expectedError != nil {
   102  		assert.Equal(t, newResponseError(expectedError), response)
   103  	} else {
   104  		fileNames := make([]string, 0, len(expectedFileNames))
   105  		for _, file := range response.GetFile() {
   106  			fileNames = append(fileNames, file.GetName())
   107  		}
   108  		assert.Equal(t, expectedFileNames, fileNames)
   109  	}
   110  }
   111  
   112  type testRunner struct {
   113  	fileNames []string
   114  	err       error
   115  }
   116  
   117  func newSuccessTestRunner(fileNames ...string) *testRunner {
   118  	return &testRunner{
   119  		fileNames: fileNames,
   120  	}
   121  }
   122  
   123  func newErrorTestRunner(err error) *testRunner {
   124  	return &testRunner{
   125  		err: err,
   126  	}
   127  }
   128  
   129  func (r *testRunner) Run(*plugin_go.CodeGeneratorRequest) *plugin_go.CodeGeneratorResponse {
   130  	if r.err != nil {
   131  		return newResponseError(r.err)
   132  	}
   133  	files := make([]*plugin_go.CodeGeneratorResponse_File, 0, len(r.fileNames))
   134  	for _, fileName := range r.fileNames {
   135  		files = append(files, &plugin_go.CodeGeneratorResponse_File{
   136  			Name: proto.String(fileName),
   137  		})
   138  	}
   139  	return newResponseFiles(files)
   140  }