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require "../../spec_helper"
require "compress/zip"
describe Compress::Zip do
it "writes and reads to memory" do
io = IO::Memory.new
Compress::Zip::Writer.open(io) do |zip|
zip.add "foo.txt", &.print("contents of foo")
zip.add "bar.txt", &.print("contents of bar")
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.file?.should be_true
entry.dir?.should be_false
entry.filename.should eq("foo.txt")
entry.compression_method.should eq(Compress::Zip::CompressionMethod::DEFLATED)
entry.crc32.should eq(0)
entry.compressed_size.should eq(0)
entry.uncompressed_size.should eq(0)
entry.extra.should be_empty
entry.io.gets_to_end.should eq("contents of foo")
entry = zip.next_entry.not_nil!
entry.filename.should eq("bar.txt")
entry.io.gets_to_end.should eq("contents of bar")
zip.next_entry.should be_nil
end
end
it "writes entry" do
io = IO::Memory.new
time = Time.utc(2017, 1, 14, 2, 3, 4)
extra = Bytes[1, 2, 3, 4]
Compress::Zip::Writer.open(io) do |zip|
zip.add(Compress::Zip::Writer::Entry.new("foo.txt", time: time, extra: extra)) do |io|
io.print("contents of foo")
end
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.time.should eq(time)
entry.extra.should eq(extra)
entry.io.gets_to_end.should eq("contents of foo")
end
end
it "writes entry uncompressed" do
io = IO::Memory.new
text = "contents of foo"
crc32 = Digest::CRC32.checksum(text)
Compress::Zip::Writer.open(io) do |zip|
entry = Compress::Zip::Writer::Entry.new("foo.txt")
entry.compression_method = Compress::Zip::CompressionMethod::STORED
entry.crc32 = crc32
entry.compressed_size = text.bytesize.to_u32
entry.uncompressed_size = text.bytesize.to_u32
zip.add entry, &.print(text)
entry = Compress::Zip::Writer::Entry.new("bar.txt")
entry.compression_method = Compress::Zip::CompressionMethod::STORED
entry.crc32 = crc32
entry.compressed_size = text.bytesize.to_u32
entry.uncompressed_size = text.bytesize.to_u32
zip.add entry, &.print(text)
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.compression_method.should eq(Compress::Zip::CompressionMethod::STORED)
entry.crc32.should eq(crc32)
entry.compressed_size.should eq(text.bytesize)
entry.uncompressed_size.should eq(text.bytesize)
entry.io.gets_to_end.should eq(text)
entry = zip.next_entry.not_nil!
entry.filename.should eq("bar.txt")
entry.io.gets_to_end.should eq(text)
end
end
it "writes entry uncompressed and reads with Compress::Zip::File" do
io = IO::Memory.new
text = "contents of foo"
crc32 = Digest::CRC32.checksum(text)
Compress::Zip::Writer.open(io) do |zip|
entry = Compress::Zip::Writer::Entry.new("foo.txt")
entry.compression_method = Compress::Zip::CompressionMethod::STORED
entry.crc32 = crc32
entry.compressed_size = text.bytesize.to_u32
entry.uncompressed_size = text.bytesize.to_u32
zip.add entry, &.print(text)
end
io.rewind
Compress::Zip::File.open(io) do |zip|
zip.entries.size.should eq(1)
entry = zip.entries.first
entry.filename.should eq("foo.txt")
entry.open(&.gets_to_end).should eq(text)
end
end
it "adds a directory" do
io = IO::Memory.new
Compress::Zip::Writer.open(io) do |zip|
zip.add_dir "one"
zip.add_dir "two/"
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("one/")
entry.file?.should be_false
entry.dir?.should be_true
entry.io.gets_to_end.should eq("")
entry = zip.next_entry.not_nil!
entry.filename.should eq("two/")
entry.dir?.should be_true
entry.io.gets_to_end.should eq("")
end
end
it "writes string" do
io = IO::Memory.new
Compress::Zip::Writer.open(io) do |zip|
zip.add "foo.txt", "contents of foo"
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.io.gets_to_end.should eq("contents of foo")
end
end
it "writes bytes" do
io = IO::Memory.new
Compress::Zip::Writer.open(io) do |zip|
zip.add "foo.txt", "contents of foo".to_slice
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.io.gets_to_end.should eq("contents of foo")
end
end
it "writes io" do
io = IO::Memory.new
data = IO::Memory.new("contents of foo")
Compress::Zip::Writer.open(io) do |zip|
zip.add "foo.txt", data
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.io.gets_to_end.should eq("contents of foo")
end
end
it "writes file" do
io = IO::Memory.new
filename = datapath("test_file.txt")
Compress::Zip::Writer.open(io) do |zip|
file = File.open(filename)
zip.add "foo.txt", file
file.closed?.should be_true
end
io.rewind
Compress::Zip::Reader.open(io) do |zip|
entry = zip.next_entry.not_nil!
entry.filename.should eq("foo.txt")
entry.io.gets_to_end.should eq(File.read(filename))
end
end
typeof(Compress::Zip::Reader.new("file.zip"))
typeof(Compress::Zip::Reader.open("file.zip") { })
typeof(Compress::Zip::Writer.new("file.zip"))
typeof(Compress::Zip::Writer.open("file.zip") { })
end
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