mirror of https://github.com/docker/compose.git
92 lines
2.2 KiB
Go
92 lines
2.2 KiB
Go
/*
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Copyright 2020 Docker, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package framework
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import (
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"context"
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"io/ioutil"
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"os"
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"github.com/stretchr/testify/require"
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"github.com/stretchr/testify/suite"
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apicontext "github.com/docker/api/context"
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"github.com/docker/api/context/store"
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)
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// CliSuite is a helper struct that creates a configured context
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// and captures the output of a command. it should be used in the
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// same way as testify.suite.Suite
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type CliSuite struct {
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suite.Suite
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ctx context.Context
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writer *os.File
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reader *os.File
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OriginalStdout *os.File
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storeRoot string
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}
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// BeforeTest is called by testify.suite
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func (sut *CliSuite) BeforeTest(suiteName, testName string) {
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ctx := context.Background()
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ctx = apicontext.WithCurrentContext(ctx, "example")
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dir, err := ioutil.TempDir("", "store")
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require.Nil(sut.T(), err)
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s, err := store.New(
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store.WithRoot(dir),
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)
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require.Nil(sut.T(), err)
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err = s.Create("example", "example", "", store.ContextMetadata{})
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require.Nil(sut.T(), err)
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sut.storeRoot = dir
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ctx = store.WithContextStore(ctx, s)
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sut.ctx = ctx
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sut.OriginalStdout = os.Stdout
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r, w, err := os.Pipe()
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require.Nil(sut.T(), err)
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os.Stdout = w
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sut.writer = w
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sut.reader = r
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}
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// Context returns a configured context
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func (sut *CliSuite) Context() context.Context {
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return sut.ctx
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}
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// GetStdOut returns the output of the command
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func (sut *CliSuite) GetStdOut() string {
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err := sut.writer.Close()
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require.Nil(sut.T(), err)
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out, _ := ioutil.ReadAll(sut.reader)
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return string(out)
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}
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// AfterTest is called by testify.suite
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func (sut *CliSuite) AfterTest(suiteName, testName string) {
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os.Stdout = sut.OriginalStdout
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err := os.RemoveAll(sut.storeRoot)
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require.Nil(sut.T(), err)
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}
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