// Licensed to Apache Software Foundation (ASF) under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Apache Software Foundation (ASF) licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
//

package util

import (
	"os"
	"testing"
)

const (
	testEnvFile  = "./testdata/env"
	testEnvKey   = "TEST_ENV"
	normalEnvKey = "NORMAL_ENV"
)

func TestExportEnvVars(t *testing.T) {
	// default value
	ExportEnvVars(testEnvFile)
	if os.Getenv(testEnvKey) != "abc" {
		t.Errorf("expected %s, got %s", "abc", os.Getenv(testEnvKey))
	}
	if os.Getenv(normalEnvKey) != "test" {
		t.Errorf("expected %s, got %s", "test", os.Getenv(normalEnvKey))
	}

	// override value from outside
	var settingValFromOutside = "def"
	os.Setenv("TEST", settingValFromOutside)
	ExportEnvVars(testEnvFile)
	if os.Getenv(testEnvKey) != settingValFromOutside {
		t.Errorf("expected %s, got %s", settingValFromOutside, os.Getenv(testEnvKey))
	}
}
