package binarysearch_test

import (
	"testing"

	bs "git.jxs.me/leetgo/binarysearch"
	"github.com/stretchr/testify/require"
)

func TestEmpty(t *testing.T) {
	require.Equal(t, -1, bs.Search([]int{}, 7))
}

func TestSingle(t *testing.T) {
	require.Equal(t, 0, bs.Search([]int{6}, 6))
}

func TestTwo(t *testing.T) {
	require.Equal(t, -1, bs.Search([]int{2, 5}, 0))
}

func TestMulti(t *testing.T) {
	require.Equal(t, 5, bs.Search([]int{1, 2, 3, 4, 5, 6, 7}, 6))
}
func TestMultiEnd(t *testing.T) {
	require.Equal(t, 6, bs.Search([]int{1, 2, 3, 4, 5, 6, 7}, 7))
}

func TestMultiStart(t *testing.T) {
	require.Equal(t, 0, bs.Search([]int{1, 2, 3, 4, 5, 6, 7}, 1))
}

func TestExample1(t *testing.T) {
	require.Equal(t, 4, bs.Search([]int{-1, 0, 3, 5, 9, 12}, 9))
}

func TestExample2(t *testing.T) {
	require.Equal(t, -1, bs.Search([]int{-1, 0, 3, 5, 9, 12}, 2))
}