go.mway.dev/x@v0.0.0-20240520034138-950aede9a3fb/env/common_test.go

// Copyright (c) 2023 Matt Way
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
// IN THE THE SOFTWARE.

package env

func osLookupEnvReturning(value string, ok bool) func(string) (string, bool) {
	return func(string) (string, bool) {
		return value, ok
	}
}

func osSetenvReturning(err error) func(string, string) error {
	return func(string, string) error {
		return err
	}
}

func osUnsetenvReturning(err error) func(string) error {
	return func(string) error {
		return err
	}
}

func withDummyPath(path string, fn func()) {
	withStub(&_osLookupEnv, osLookupEnvReturning(path, true), fn)
}

func withStub[T any](dst *T, stub T, fn func()) {
	orig := *dst
	defer func() {
		*dst = orig
	}()

	*dst = stub
	fn()
}