1// Copyright 2019 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package impl
6
7import (
8	"bytes"
9	"compress/gzip"
10	"io/ioutil"
11	"math"
12	"strings"
13	"testing"
14)
15
16func TestCompressGZIP(t *testing.T) {
17	tests := []string{
18		"",
19		"a",
20		"ab",
21		"abc",
22		strings.Repeat("a", math.MaxUint16-1),
23		strings.Repeat("b", math.MaxUint16),
24		strings.Repeat("c", math.MaxUint16+1),
25		strings.Repeat("abcdefghijklmnopqrstuvwxyz", math.MaxUint16-13),
26	}
27	for _, want := range tests {
28		rb := bytes.NewReader(Export{}.CompressGZIP([]byte(want)))
29		zr, err := gzip.NewReader(rb)
30		if err != nil {
31			t.Errorf("unexpected gzip.NewReader error: %v", err)
32		}
33		b, err := ioutil.ReadAll(zr)
34		if err != nil {
35			t.Errorf("unexpected ioutil.ReadAll error: %v", err)
36		}
37		if got := string(b); got != want {
38			t.Errorf("output mismatch: got %q, want %q", got, want)
39		}
40	}
41}
42