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1d15d5f080
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
78 lines
2.3 KiB
Ruby
78 lines
2.3 KiB
Ruby
require File.expand_path('../../fixtures/classes', __FILE__)
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describe :io_binwrite, shared: true do
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before :each do
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@filename = tmp("IO_binwrite_file") + $$.to_s
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File.open(@filename, "w") do |file|
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file << "012345678901234567890123456789"
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end
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end
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after :each do
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rm_r @filename
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end
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it "coerces the argument to a string using to_s" do
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(obj = mock('test')).should_receive(:to_s).and_return('a string')
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IO.send(@method, @filename, obj)
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end
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it "returns the number of bytes written" do
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IO.send(@method, @filename, "abcde").should == 5
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end
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it "creates a file if missing" do
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fn = @filename + "xxx"
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begin
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File.exist?(fn).should be_false
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IO.send(@method, fn, "test")
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File.exist?(fn).should be_true
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ensure
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rm_r fn
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end
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end
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it "creates file if missing even if offset given" do
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fn = @filename + "xxx"
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begin
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File.exist?(fn).should be_false
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IO.send(@method, fn, "test", 0)
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File.exist?(fn).should be_true
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ensure
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rm_r fn
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end
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end
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it "truncates the file and writes the given string" do
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IO.send(@method, @filename, "hello, world!")
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File.read(@filename).should == "hello, world!"
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end
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it "doesn't truncate the file and writes the given string if an offset is given" do
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IO.send(@method, @filename, "hello, world!", 0)
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File.read(@filename).should == "hello, world!34567890123456789"
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IO.send(@method, @filename, "hello, world!", 20)
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File.read(@filename).should == "hello, world!3456789hello, world!"
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end
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it "doesn't truncate and writes at the given offset after passing empty opts" do
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IO.send(@method, @filename, "hello world!", 1, {})
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File.read(@filename).should == "0hello world!34567890123456789"
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end
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it "accepts a :mode option" do
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IO.send(@method, @filename, "hello, world!", mode: 'a')
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File.read(@filename).should == "012345678901234567890123456789hello, world!"
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IO.send(@method, @filename, "foo", 2, mode: 'w')
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File.read(@filename).should == "\0\0foo"
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end
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it "raises an error if readonly mode is specified" do
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lambda { IO.send(@method, @filename, "abcde", mode: "r") }.should raise_error(IOError)
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end
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it "truncates if empty :opts provided and offset skipped" do
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IO.send(@method, @filename, "hello, world!", {})
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File.read(@filename).should == "hello, world!"
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end
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end
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