package config

import "maps"
import "testing"

func TestDiffValueMapsNone (test *testing.T) {
	str := `
thing = something

otherThing  = otherValue
# comment
otherThing = true
otherThing = 234

yetAnotherThing = 0.23498
`
	file1 := parseFileString(test, str)
	file2 := parseFileString(test, str)
	diff := diffValueMaps(file1.Map(), file2.Map())
	if len(diff) != 0 {
		test.Fatalf("diff not empty:\n%v", diff)
	}
}

func TestDiffValueMaps (test *testing.T) {
	file1 := parseFileString(test,
`key4=0
key1=value1
# comment
key2=34`)
	file2 := parseFileString(test,
`key1=value2
key2=34
# comment

key3=0.2`)
	diff := diffValueMaps(file1.Map(), file2.Map())
	correct := map[string] struct { } {
		"key1": struct { } { },
		"key3": struct { } { },
		"key4": struct { } { },
	}
	if !maps.Equal(diff, correct) {
		test.Error("diffs do not match")
		test.Errorf("EXPECTED:\n%v", correct)
		test.Errorf("GOT:\n%v", diff)
		test.Fail()
	}
}

// TODO we need way more tests!
// need to test watching files. maybe make a temp dir and do it there. remember
// to defer cleaning up the dir and closing of the config.