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authorpacien2018-11-23 12:57:00 +0100
committerpacien2018-11-23 13:00:53 +0100
commitd9768cd0315b0415d20818de9c897c6168c95b78 (patch)
tree41987740d02f689550436384dd7d2b755aa85869 /tests
parentc87ea5c5d11bffbe84acf66215e6bf5a5e047a50 (diff)
downloadgziplike-d9768cd0315b0415d20818de9c897c6168c95b78.tar.gz
Split bitstream into bitreader and bitwriter
Diffstat (limited to 'tests')
-rw-r--r--tests/tbitreader.nim61
-rw-r--r--tests/tbitstream.nim131
-rw-r--r--tests/tbitwriter.nim85
-rw-r--r--tests/tintegers.nim6
-rw-r--r--tests/trawblock.nim22
5 files changed, 162 insertions, 143 deletions
diff --git a/tests/tbitreader.nim b/tests/tbitreader.nim
new file mode 100644
index 0000000..6b3be2b
--- /dev/null
+++ b/tests/tbitreader.nim
@@ -0,0 +1,61 @@
1# "à-la-gzip" gzip-like LZSS compressor
2# Copyright (C) 2018 Pacien TRAN-GIRARD
3#
4# This program is free software: you can redistribute it and/or modify
5# it under the terms of the GNU Affero General Public License as
6# published by the Free Software Foundation, either version 3 of the
7# License, or (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12# GNU Affero General Public License for more details.
13#
14# You should have received a copy of the GNU Affero General Public License
15# along with this program. If not, see <https://www.gnu.org/licenses/>.
16
17import unittest, streams, sugar, sequtils
18import integers, bitreader
19
20suite "bitreader":
21 test "readBool":
22 let stream = newStringStream()
23 defer: stream.close()
24 stream.write(0b1001_1111'u8)
25 stream.write(0b0110_0000'u8)
26 stream.setPosition(0)
27
28 let bitReader = stream.bitReader()
29 check lc[bitReader.readBool() | (_ <- 0..<16), bool] == @[
30 true, true, true, true, true, false, false, true,
31 false, false, false, false, false, true, true, false]
32
33 expect IOError: discard bitReader.readBool()
34 check bitReader.atEnd()
35
36 test "readBits":
37 let stream = newStringStream()
38 defer: stream.close()
39 stream.write(0xF00F'u16)
40 stream.write(0x0FFF'u16)
41 stream.setPosition(0)
42
43 let bitReader = stream.bitReader()
44 check bitReader.readBits(8, uint8) == 0x0F'u8
45 check bitReader.readBits(16, uint16) == 0xFFF0'u16
46 check bitReader.readBits(8, uint8) == 0x0F'u8
47
48 expect RangeError: discard bitReader.readBits(9, uint8)
49 expect IOError: discard bitReader.readBits(16, uint16)
50 check bitReader.atEnd()
51
52 test "readSeq":
53 let stream = newStringStream()
54 defer: stream.close()
55 stream.write(0x0F00_F0FF_F0F0_F0F0'u64)
56 stream.setPosition(0)
57
58 let bitReader = stream.bitReader()
59 check bitReader.readSeq(32, uint16) == (32, @[0xF0F0'u16, 0xF0F0])
60 check bitReader.readSeq(40, uint8) == (32, @[0xFF'u8, 0xF0, 0x00, 0x0F])
61 check bitReader.atEnd()
diff --git a/tests/tbitstream.nim b/tests/tbitstream.nim
deleted file mode 100644
index 2292049..0000000
--- a/tests/tbitstream.nim
+++ /dev/null
@@ -1,131 +0,0 @@
1# "à-la-gzip" gzip-like LZSS compressor
2# Copyright (C) 2018 Pacien TRAN-GIRARD
3#
4# This program is free software: you can redistribute it and/or modify
5# it under the terms of the GNU Affero General Public License as
6# published by the Free Software Foundation, either version 3 of the
7# License, or (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12# GNU Affero General Public License for more details.
13#
14# You should have received a copy of the GNU Affero General Public License
15# along with this program. If not, see <https://www.gnu.org/licenses/>.
16
17import unittest, streams, sugar, sequtils
18import integers, bitstream
19
20suite "bitstream":
21 test "chunks iterator":
22 check toSeq(chunks(70, uint32)) == @[(0, 32), (1, 32), (2, 6)]
23 check toSeq(chunks(32, uint16)) == @[(0, 16), (1, 16)]
24
25 test "flush":
26 let stream = newStringStream()
27 defer: stream.close()
28 let bitStream = stream.bitStream()
29
30 bitStream.writeBool(true)
31 stream.setPosition(0)
32 expect IOError: discard stream.peekUint8()
33
34 bitStream.flush()
35 stream.setPosition(0)
36 check stream.readUint8() == 0x01'u8
37 check stream.atEnd()
38
39 bitStream.flush()
40 check stream.atEnd()
41
42 test "readBool":
43 let stream = newStringStream()
44 defer: stream.close()
45 stream.write(0b1001_1111'u8)
46 stream.write(0b0110_0000'u8)
47 stream.setPosition(0)
48
49 let bitStream = stream.bitStream()
50 check lc[bitStream.readBool() | (_ <- 0..<16), bool] == @[
51 true, true, true, true, true, false, false, true,
52 false, false, false, false, false, true, true, false]
53
54 expect IOError: discard bitStream.readBool()
55 check bitStream.atEnd()
56
57 test "readBits":
58 let stream = newStringStream()
59 defer: stream.close()
60 stream.write(0xF00F'u16)
61 stream.write(0x0FFF'u16)
62 stream.setPosition(0)
63
64 let bitStream = stream.bitStream()
65 check bitStream.readBits(8, uint8) == 0x0F'u8
66 check bitStream.readBits(16, uint16) == 0xFFF0'u16
67 check bitStream.readBits(8, uint8) == 0x0F'u8
68
69 expect RangeError: discard bitStream.readBits(9, uint8)
70 expect IOError: discard bitStream.readBits(16, uint16)
71 check bitStream.atEnd()
72
73 test "readSeq":
74 let stream = newStringStream()
75 defer: stream.close()
76 stream.write(0x0F00_F0FF_F0F0_F0F0'u64)
77 stream.setPosition(0)
78
79 let bitStream = stream.bitStream()
80 check bitStream.readSeq(32, uint16) == (32, @[0xF0F0'u16, 0xF0F0])
81 check bitStream.readSeq(40, uint8) == (32, @[0xFF'u8, 0xF0, 0x00, 0x0F])
82 check bitStream.atEnd()
83
84 test "writeBool":
85 let stream = newStringStream()
86 defer: stream.close()
87
88 let bitStream = stream.bitStream()
89 let booleanValues = @[
90 true, true, true, true, true, false, false, true,
91 false, false, false, false, false, true, true, false,
92 true, true, false, true]
93 for b in booleanValues: bitStream.writeBool(b)
94 bitStream.flush()
95
96 stream.setPosition(0)
97 check stream.readUint8() == 0b1001_1111'u8
98 check stream.readUint8() == 0b0110_0000'u8
99 check stream.readUint8() == 0b0000_1011'u8
100 expect IOError: discard stream.readUint8()
101 check stream.atEnd()
102
103 test "writeBits":
104 let stream = newStringStream()
105 defer: stream.close()
106
107 let bitStream = stream.bitStream()
108 bitStream.writeBits(4, 0xF00F'u16)
109 bitStream.writeBits(16, 0xF00F'u16)
110 bitStream.writeBits(16, 0xFFFF'u16)
111 bitStream.flush()
112
113 stream.setPosition(0)
114 check stream.readUint16() == 0x00FF'u16
115 check stream.readUint16() == 0xFFFF'u16
116 check stream.readUint8() == 0x0F'u8
117 expect IOError: discard stream.readUint8()
118 check stream.atEnd()
119
120 test "writeSeq":
121 let stream = newStringStream()
122 defer: stream.close()
123
124 let bitStream = stream.bitStream()
125 bitStream.writeSeq(32, @[0xF0F0'u16, 0xF0F0])
126 bitStream.writeSeq(28, @[0xFF'u8, 0xF0, 0x00, 0xFF])
127 bitStream.flush()
128
129 stream.setPosition(0)
130 check stream.readUint64() == 0x0F00_F0FF_F0F0_F0F0'u64
131 check stream.atEnd()
diff --git a/tests/tbitwriter.nim b/tests/tbitwriter.nim
new file mode 100644
index 0000000..cc7fdc5
--- /dev/null
+++ b/tests/tbitwriter.nim
@@ -0,0 +1,85 @@
1# "à-la-gzip" gzip-like LZSS compressor
2# Copyright (C) 2018 Pacien TRAN-GIRARD
3#
4# This program is free software: you can redistribute it and/or modify
5# it under the terms of the GNU Affero General Public License as
6# published by the Free Software Foundation, either version 3 of the
7# License, or (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12# GNU Affero General Public License for more details.
13#
14# You should have received a copy of the GNU Affero General Public License
15# along with this program. If not, see <https://www.gnu.org/licenses/>.
16
17import unittest, streams
18import integers, bitwriter
19
20suite "bitwriter":
21 test "flush":
22 let stream = newStringStream()
23 defer: stream.close()
24 let bitWriter = stream.bitWriter()
25
26 bitWriter.writeBool(true)
27 stream.setPosition(0)
28 expect IOError: discard stream.peekUint8()
29
30 bitWriter.flush()
31 stream.setPosition(0)
32 check stream.readUint8() == 0x01'u8
33 check stream.atEnd()
34
35 bitWriter.flush()
36 check stream.atEnd()
37
38 test "writeBool":
39 let stream = newStringStream()
40 defer: stream.close()
41
42 let bitWriter = stream.bitWriter()
43 let booleanValues = @[
44 true, true, true, true, true, false, false, true,
45 false, false, false, false, false, true, true, false,