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npgsql/test/Npgsql.Tests/NpgsqlBufferTests.cs at develop · synthesis85/npgsql · GitHub
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Npgsql.Tests
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NpgsqlBufferTests.cs
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#region License
// The PostgreSQL License
//
// Copyright (C) 2016 The Npgsql Development Team
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
#endregion
using
System
;
using
System
.
Collections
.
Generic
;
using
System
.
IO
;
using
System
.
Linq
;
using
System
.
Text
;
using
Npgsql
;
using
NUnit
.
Framework
;
namespace
Npgsql
.
Tests
{
class
NpgsqlBufferTests
{
[
Test
]
public
void
Skip
(
)
{
for
(
byte
i
=
0
;
i
<
50
;
i
++
)
Underlying
.
WriteByte
(
i
)
;
Underlying
.
Seek
(
0
,
SeekOrigin
.
Begin
)
;
Buffer
.
Ensure
(
10
)
;
Buffer
.
Skip
(
7
)
;
Assert
.
That
(
Buffer
.
ReadByte
(
)
,
Is
.
EqualTo
(
7
)
)
;
Buffer
.
Skip
(
10
)
;
Buffer
.
Ensure
(
1
)
;
Assert
.
That
(
Buffer
.
ReadByte
(
)
,
Is
.
EqualTo
(
18
)
)
;
Buffer
.
Skip
(
20
)
;
Buffer
.
Ensure
(
1
)
;
Assert
.
That
(
Buffer
.
ReadByte
(
)
,
Is
.
EqualTo
(
39
)
)
;
}
[
Test
]
public
void
ReadSingle
(
)
{
const
float
expected
=
8.7f
;
var
bytes
=
BitConverter
.
GetBytes
(
expected
)
;
Array
.
Reverse
(
bytes
)
;
Underlying
.
Write
(
bytes
,
0
,
bytes
.
Length
)
;
Underlying
.
WriteByte
(
8
)
;
Underlying
.
Seek
(
0
,
SeekOrigin
.
Begin
)
;
Buffer
.
Ensure
(
5
)
;
Assert
.
That
(
Buffer
.
ReadSingle
(
)
,
Is
.
EqualTo
(
expected
)
)
;
Assert
.
That
(
Buffer
.
ReadByte
(
)
,
Is
.
EqualTo
(
8
)
)
;
}
[
Test
]
public
void
ReadDouble
(
)
{
const
double
expected
=
8.7
;
var
bytes
=
BitConverter
.
GetBytes
(
expected
)
;
Array
.
Reverse
(
bytes
)
;
Underlying
.
Write
(
bytes
,
0
,
bytes
.
Length
)
;
Underlying
.
WriteByte
(
8
)
;
Underlying
.
Seek
(
0
,
SeekOrigin
.
Begin
)
;
Buffer
.
Ensure
(
9
)
;
Assert
.
That
(
Buffer
.
ReadDouble
(
)
,
Is
.
EqualTo
(
expected
)
)
;
Assert
.
That
(
Buffer
.
ReadByte
(
)
,
Is
.
EqualTo
(
8
)
)
;
}
[
Test
]
public
void
ReadChars
(
)
{
const
string
expected
=
"This string is bigger than the buffer length"
;
var
bytes
=
Encoding
.
UTF8
.
GetBytes
(
expected
)
;
Underlying
.
Write
(
bytes
,
0
,
bytes
.
Length
)
;
Underlying
.
Seek
(
0
,
SeekOrigin
.
Begin
)
;
var
chars
=
new
char
[
expected
.
Length
+
5
]
;
int
bytesRead
,
charsRead
;
Buffer
.
ReadAllChars
(
chars
,
5
,
expected
.
Length
,
bytes
.
Length
,
out
bytesRead
,
out
charsRead
)
;
Assert
.
That
(
charsRead
,
Is
.
EqualTo
(
expected
.
Length
)
)
;
Assert
.
That
(
bytesRead
,
Is
.
EqualTo
(
bytes
.
Length
)
)
;
var
actual
=
new
string
(
chars
,
5
,
expected
.
Length
)
;
Assert
.
That
(
actual
,
Is
.
EqualTo
(
expected
)
)
;
}
[
Test
]
public
void
ReadCharsTooMany
(
)
{
const
string
expected
=
"This string is bigger than the buffer length"
;
var
bytes
=
Encoding
.
UTF8
.
GetBytes
(
expected
)
;
Underlying
.
Write
(
bytes
,
0
,
bytes
.
Length
)
;
Underlying
.
Seek
(
0
,
SeekOrigin
.
Begin
)
;
var
chars
=
new
char
[
expected
.
Length
+
5
]
;
int
bytesRead
,
charsRead
;
Buffer
.
ReadAllChars
(
chars
,
0
,
expected
.
Length
+
5
,
bytes
.
Length
,
out
bytesRead
,
out
charsRead
)
;
Assert
.
That
(
charsRead
,
Is
.
EqualTo
(
expected
.
Length
)
)
;
Assert
.
That
(
bytesRead
,
Is
.
EqualTo
(
bytes
.
Length
)
)
;
var
actual
=
new
string
(
chars
,
0
,
expected
.
Length
)
;
Assert
.
That
(
actual
,
Is
.
EqualTo
(
expected
)
)
;
}
[
SetUp
]
public
void
SetUp
(
)
{
Underlying
=
new
MemoryStream
(
)
;
Buffer
=
new
NpgsqlBuffer
(
Underlying
,
NpgsqlBuffer
.
DefaultBufferSize
,
PGUtil
.
UTF8Encoding
)
;
}
NpgsqlBuffer
Buffer
;
MemoryStream
Underlying
;
}
}
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