47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package testutil
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import (
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"bytes"
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"io/ioutil"
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"os"
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"strings"
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"testing"
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"github.com/spf13/cobra"
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"github.com/stretchr/testify/require"
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)
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// NewTestCaseDir creates a new temporary directory for a test case.
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// Returns the directory path and a cleanup function.
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// nolint: errcheck
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func NewTestCaseDir(t testing.TB) (string, func()) {
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dir, err := ioutil.TempDir("", t.Name()+"_")
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require.NoError(t, err)
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return dir, func() { os.RemoveAll(dir) }
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}
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// ApplyMockIO replaces stdin/out/err with buffers that can be used during testing.
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func ApplyMockIO(c *cobra.Command) (*strings.Reader, *bytes.Buffer, *bytes.Buffer) {
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mockIn := strings.NewReader("")
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mockOut := bytes.NewBufferString("")
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mockErr := bytes.NewBufferString("")
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c.SetIn(mockIn)
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c.SetOut(mockOut)
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c.SetErr(mockErr)
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return mockIn, mockOut, mockErr
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}
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// Write the given string to a new temporary file.
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// Returns an open file and a clean up function that
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// the caller must call to remove the file when it is
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// no longer needed.
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func WriteToNewTempFile(t testing.TB, s string) (*os.File, func()) {
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fp, err := ioutil.TempFile("", t.Name()+"_")
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require.Nil(t, err)
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_, err = fp.WriteString(s)
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require.Nil(t, err)
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return fp, func() { os.Remove(fp.Name()) }
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}
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