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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package csv

import (
        "bytes"
        "testing"
)

var writeTests = []struct {
        Input   [][]string
        Output  string
        UseCRLF bool
}{
        {Input: [][]string{{"abc"}}, Output: "abc\n"},
        {Input: [][]string{{"abc"}}, Output: "abc\r\n", UseCRLF: true},
        {Input: [][]string{{`"abc"`}}, Output: `"""abc"""` + "\n"},
        {Input: [][]string{{`a"b`}}, Output: `"a""b"` + "\n"},
        {Input: [][]string{{`"a"b"`}}, Output: `"""a""b"""` + "\n"},
        {Input: [][]string{{" abc"}}, Output: `" abc"` + "\n"},
        {Input: [][]string{{"abc,def"}}, Output: `"abc,def"` + "\n"},
        {Input: [][]string{{"abc", "def"}}, Output: "abc,def\n"},
        {Input: [][]string{{"abc"}, {"def"}}, Output: "abc\ndef\n"},
        {Input: [][]string{{"abc\ndef"}}, Output: "\"abc\ndef\"\n"},
        {Input: [][]string{{"abc\ndef"}}, Output: "\"abc\r\ndef\"\r\n", UseCRLF: true},
}

func TestWrite(t *testing.T) {
        for n, tt := range writeTests {
                b := &bytes.Buffer{}
                f := NewWriter(b)
                f.UseCRLF = tt.UseCRLF
                err := f.WriteAll(tt.Input)
                if err != nil {
                        t.Errorf("Unexpected error: %s\n", err)
                }
                out := b.String()
                if out != tt.Output {
                        t.Errorf("#%d: out=%q want %q", n, out, tt.Output)
                }
        }
}