1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
// Copyright (C) MongoDB, Inc. 2014-present.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
package archive
import (
"bytes"
"fmt"
"io"
"testing"
"github.com/mongodb/mongo-tools/common/testtype"
. "github.com/smartystreets/goconvey/convey"
"gopkg.in/mgo.v2/bson"
)
type testConsumer struct {
headers []string // header data
bodies []string // body data
eof bool
}
func (tc *testConsumer) HeaderBSON(b []byte) error {
ss := strStruct{}
err := bson.Unmarshal(b, &ss)
tc.headers = append(tc.headers, ss.Str)
return err
}
func (tc *testConsumer) BodyBSON(b []byte) error {
ss := strStruct{}
err := bson.Unmarshal(b, &ss)
tc.bodies = append(tc.bodies, ss.Str)
return err
}
func (tc *testConsumer) End() (err error) {
if tc.eof {
err = fmt.Errorf("double end")
}
tc.eof = true
return err
}
type strStruct struct {
Str string
}
var term = []byte{0xFF, 0xFF, 0xFF, 0xFF}
var notTerm = []byte{0xFF, 0xFF, 0xFF, 0xFE}
func TestParsing(t *testing.T) {
testtype.SkipUnlessTestType(t, testtype.UnitTestType)
Convey("With a parser with a simple parser consumer", t, func() {
tc := &testConsumer{}
parser := Parser{}
Convey("a well formed header and body", func() {
buf := bytes.Buffer{}
b, _ := bson.Marshal(strStruct{"header"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body"})
buf.Write(b)
buf.Write(term)
parser.In = &buf
Convey("ReadBlock data parses correctly", func() {
err := parser.ReadBlock(tc)
So(err, ShouldBeNil)
So(tc.eof, ShouldBeFalse)
So(tc.headers[0], ShouldEqual, "header")
So(tc.bodies[0], ShouldEqual, "body")
err = parser.ReadBlock(tc)
So(err, ShouldEqual, io.EOF)
})
Convey("ReadAllBlock data parses correctly", func() {
err := parser.ReadAllBlocks(tc)
So(err, ShouldEqual, nil)
So(tc.eof, ShouldBeTrue)
So(tc.headers[0], ShouldEqual, "header")
So(tc.bodies[0], ShouldEqual, "body")
})
})
Convey("a well formed header and multiple body datas parse correctly", func() {
buf := bytes.Buffer{}
b, _ := bson.Marshal(strStruct{"header"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body0"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body1"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body2"})
buf.Write(b)
buf.Write(term)
parser.In = &buf
err := parser.ReadBlock(tc)
So(err, ShouldBeNil)
So(tc.eof, ShouldBeFalse)
So(tc.headers[0], ShouldEqual, "header")
So(tc.bodies[0], ShouldEqual, "body0")
So(tc.bodies[1], ShouldEqual, "body1")
So(tc.bodies[2], ShouldEqual, "body2")
err = parser.ReadBlock(tc)
So(err, ShouldEqual, io.EOF)
So(tc.eof, ShouldBeFalse)
})
Convey("an incorrect terminator should cause an error", func() {
buf := bytes.Buffer{}
b, _ := bson.Marshal(strStruct{"header"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body"})
buf.Write(b)
buf.Write(notTerm)
parser.In = &buf
err := parser.ReadBlock(tc)
So(err, ShouldNotBeNil)
})
Convey("an empty block should result in EOF", func() {
buf := bytes.Buffer{}
parser.In = &buf
err := parser.ReadBlock(tc)
So(err, ShouldEqual, io.EOF)
So(tc.eof, ShouldBeFalse)
})
Convey("an error comming from the consumer should propigate through the parser", func() {
tc.eof = true
buf := bytes.Buffer{}
parser.In = &buf
err := parser.ReadAllBlocks(tc)
So(err.Error(), ShouldContainSubstring, "double end")
})
Convey("a partial block should result in a non-EOF error", func() {
buf := bytes.Buffer{}
b, _ := bson.Marshal(strStruct{"header"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body"})
buf.Write(b)
parser.In = &buf
err := parser.ReadBlock(tc)
So(err, ShouldNotBeNil)
So(tc.eof, ShouldBeFalse)
So(tc.headers[0], ShouldEqual, "header")
So(tc.bodies[0], ShouldEqual, "body")
})
Convey("a block with a missing terminator shoud result in a non-EOF error", func() {
buf := bytes.Buffer{}
b, _ := bson.Marshal(strStruct{"header"})
buf.Write(b)
b, _ = bson.Marshal(strStruct{"body"})
buf.Write(b[:len(b)-1])
buf.Write([]byte{0x01})
buf.Write(notTerm)
parser.In = &buf
err := parser.ReadBlock(tc)
So(err, ShouldNotBeNil)
So(tc.eof, ShouldBeFalse)
So(tc.headers[0], ShouldEqual, "header")
So(tc.bodies, ShouldBeNil)
})
})
return
}
|
