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33 lines
678 B
Go
33 lines
678 B
Go
package feature
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import (
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"fmt"
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"testing"
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)
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// TestSetFlag temporarily sets a feature flag to the given value until the
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// returned function is called.
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//
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// Usage
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// ```
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// defer TestSetFlag(t, features.Flags, features.ExampleFlag, true)()
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// ```
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func TestSetFlag(t *testing.T, f *FlagSet, flag FlagName, value bool) func() {
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current := f.Enabled(flag)
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panicIfCalled := func(msg string) {
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panic(msg)
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}
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if err := f.Apply(fmt.Sprintf("%s=%v", flag, value), panicIfCalled); err != nil {
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// not reachable
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panic(err)
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}
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return func() {
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if err := f.Apply(fmt.Sprintf("%s=%v", flag, current), panicIfCalled); err != nil {
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// not reachable
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panic(err)
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}
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}
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}
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