mirror of https://github.com/docker/cli.git
73 lines
1.8 KiB
Go
73 lines
1.8 KiB
Go
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package opts
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import (
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"testing"
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"gotest.tools/v3/assert"
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"gotest.tools/v3/env"
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"gotest.tools/v3/fs"
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)
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func TestReadKVEnvStrings(t *testing.T) {
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emptyEnvFile := fs.NewFile(t, t.Name())
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defer emptyEnvFile.Remove()
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// EMPTY_VAR should be set, but with an empty string as value
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// FROM_ENV value should be substituted with FROM_ENV in the current environment
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// NO_SUCH_ENV does not exist in the current environment, so should be omitted
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envFile1 := fs.NewFile(t, t.Name(), fs.WithContent(`Z1=z
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EMPTY_VAR=
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FROM_ENV
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NO_SUCH_ENV
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`))
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defer envFile1.Remove()
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envFile2 := fs.NewFile(t, t.Name(), fs.WithContent("Z2=z\nA2=a"))
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defer envFile2.Remove()
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defer env.Patch(t, "FROM_ENV", "from-env")()
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tests := []struct {
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name string
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files []string
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overrides []string
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expected []string
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}{
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{
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name: "empty",
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},
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{
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name: "empty file",
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files: []string{emptyEnvFile.Path()},
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},
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{
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name: "single file",
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files: []string{envFile1.Path()},
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expected: []string{"Z1=z", "EMPTY_VAR=", "FROM_ENV=from-env"},
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},
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{
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name: "two files",
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files: []string{envFile1.Path(), envFile2.Path()},
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expected: []string{"Z1=z", "EMPTY_VAR=", "FROM_ENV=from-env", "Z2=z", "A2=a"},
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},
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{
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name: "single file and override",
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files: []string{envFile1.Path()},
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overrides: []string{"Z1=override", "EXTRA=extra"},
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expected: []string{"Z1=z", "EMPTY_VAR=", "FROM_ENV=from-env", "Z1=override", "EXTRA=extra"},
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},
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{
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name: "overrides only",
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overrides: []string{"Z1=z", "EMPTY_VAR="},
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expected: []string{"Z1=z", "EMPTY_VAR="},
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},
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}
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for _, tc := range tests {
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tc := tc
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t.Run(tc.name, func(t *testing.T) {
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envs, err := ReadKVEnvStrings(tc.files, tc.overrides)
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assert.NilError(t, err)
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assert.DeepEqual(t, tc.expected, envs)
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})
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}
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}
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