40 lines
885 B
Go
40 lines
885 B
Go
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package oci
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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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"testing"
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"github.com/docker/libnetwork/resolvconf"
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"github.com/stretchr/testify/require"
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)
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// TestResolvConfNotExist modifies a global variable
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// It must not run in parallel.
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func TestResolvConfNotExist(t *testing.T) {
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oldResolvconfGet := resolvconfGet
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defer func() {
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resolvconfGet = oldResolvconfGet
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}()
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resolvconfGet = func() (*resolvconf.File, error) {
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return nil, os.ErrNotExist
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}
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defaultResolvConf := `
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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nameserver 2001:4860:4860::8888
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nameserver 2001:4860:4860::8844`
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dir, err := ioutil.TempDir("", "buildkit-test")
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require.NoError(t, err)
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defer os.RemoveAll(dir)
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ctx := context.Background()
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p, err := GetResolvConf(ctx, dir, nil, nil)
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require.NoError(t, err)
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b, err := ioutil.ReadFile(p)
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require.NoError(t, err)
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require.Equal(t, string(b), defaultResolvConf)
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}
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