// Copyright 2017 Google Inc.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package getopt

import (
	"fmt"
	"strings"
	"testing"
)

var counterTests = []struct {
	where string
	in    []string
	c     int
	cnt   int
	myint int
	err   string
}{
	{
		loc(),
		[]string{},
		0,
		0,
		0,
		"",
	},
	{
		loc(),
		[]string{"test", "-c", "--cnt"},
		1,
		1,
		0,
		"",
	},
	{
		loc(),
		[]string{"test", "-cc", "-c", "--cnt", "--cnt", "-mmmm", "--myint"},
		3,
		2,
		5,
		"",
	},
	{
		loc(),
		[]string{"test", "--c=17", "--cnt=42", "--m=13"},
		17,
		42,
		13,
		"",
	},
	{
		loc(),
		[]string{"test", "--cnt=false"},
		0, 0, 0,
		"test: not a valid number: false\n",
	},
}

func TestCounter(t *testing.T) {
	for x, tt := range counterTests {
		reset()
		var myint int
		c := Counter('c')
		cnt := CounterLong("cnt", 0)
		CounterLongVar(&myint, "myint", 'm')
		if strings.Index(tt.where, ":-") > 0 {
			tt.where = fmt.Sprintf("#%d", x)
		}

		parse(tt.in)
		if s := checkError(tt.err); s != "" {
			t.Errorf("%s: %s", tt.where, s)
		}
		if got, want := *c, tt.c; got != want {
			t.Errorf("%s: got %v, want %v", tt.where, got, want)
		}
		if got, want := *cnt, tt.cnt; got != want {
			t.Errorf("%s: got %v, want %v", tt.where, got, want)
		}
		if got, want := myint, tt.myint; got != want {
			t.Errorf("%s: got %v, want %v", tt.where, got, want)
		}
	}
}
