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
|
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
test_that("codec_is_available", {
expect_true(codec_is_available("uncompressed")) # Always true
expect_match_arg_error(codec_is_available("sdfasdf"))
skip_if_not_available("gzip")
expect_true(codec_is_available("gzip"))
expect_true(codec_is_available("GZIP"))
})
if (identical(Sys.getenv("APPVEYOR"), "True")) {
test_that("Compression codecs are included in the Windows build", {
expect_true(codec_is_available("lz4"))
expect_true(codec_is_available("zstd"))
})
}
test_that("Codec attributes", {
skip_if_not_available("gzip")
cod <- Codec$create("gzip")
expect_equal(cod$name, "gzip")
# TODO: implement $level
expect_error(cod$level)
})
test_that("can write Buffer to CompressedOutputStream and read back in CompressedInputStream", {
skip_if_not_available("gzip")
buf <- buffer(as.raw(sample(0:255, size = 1024, replace = TRUE)))
tf1 <- tempfile()
stream1 <- CompressedOutputStream$create(tf1)
expect_equal(stream1$tell(), 0)
stream1$write(buf)
expect_equal(stream1$tell(), buf$size)
stream1$close()
tf2 <- tempfile()
sink2 <- FileOutputStream$create(tf2)
stream2 <- CompressedOutputStream$create(sink2)
expect_equal(stream2$tell(), 0)
stream2$write(buf)
expect_equal(stream2$tell(), buf$size)
stream2$close()
sink2$close()
input1 <- CompressedInputStream$create(tf1)
buf1 <- input1$Read(1024L)
file2 <- ReadableFile$create(tf2)
input2 <- CompressedInputStream$create(file2)
buf2 <- input2$Read(1024L)
expect_equal(buf, buf1)
expect_equal(buf, buf2)
unlink(tf1)
unlink(tf2)
})
|
