package env

import (
	"os"
	"testing"
)

func TestSetGet(t *testing.T) {
	t.Setenv("OLLIE_TEST_VAR", "")
	Set("OLLIE_TEST_VAR", "hello")
	if got := Get("OLLIE_TEST_VAR"); got != "hello" {
		t.Errorf("Get = %q, want %q", got, "hello")
	}
}

func TestLoadFile(t *testing.T) {
	tmp := t.TempDir()
	path := tmp + "/env"
	os.WriteFile(path, []byte("OLLIE_LOAD_TEST=from-file\n"), 0644) //nolint:errcheck
	t.Setenv("OLLIE_LOAD_TEST", "")
	LoadFile(path)
	if v := os.Getenv("OLLIE_LOAD_TEST"); v != "from-file" {
		t.Errorf("OLLIE_LOAD_TEST = %q, want from-file", v)
	}
}

func TestLoadFileNoOverwrite(t *testing.T) {
	t.Setenv("OLLIE_NO_OVERWRITE", "existing")
	tmp := t.TempDir()
	path := tmp + "/env"
	os.WriteFile(path, []byte("OLLIE_NO_OVERWRITE=from-file\n"), 0644) //nolint:errcheck
	LoadFile(path)
	if v := os.Getenv("OLLIE_NO_OVERWRITE"); v != "existing" {
		t.Errorf("OLLIE_NO_OVERWRITE = %q, want existing (should not overwrite)", v)
	}
}