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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-27 10:48:40 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2018-10-27 10:48:40 +0000 |
commit | 3e6337b88b5255aba07b8f44de72cd5885f59465 (patch) | |
tree | 6146781aa381404b88ea4bfa2a44e75e8bc90d14 /spec/ruby/core/io/pwrite_spec.rb | |
parent | ecc707e233a5577ea2048b3199d4baaf96c6b0f8 (diff) | |
download | ruby-3e6337b88b5255aba07b8f44de72cd5885f59465.tar.gz |
Update to ruby/spec@8b743a3
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65388 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/core/io/pwrite_spec.rb')
-rw-r--r-- | spec/ruby/core/io/pwrite_spec.rb | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/spec/ruby/core/io/pwrite_spec.rb b/spec/ruby/core/io/pwrite_spec.rb new file mode 100644 index 0000000000..fd3d1b98e9 --- /dev/null +++ b/spec/ruby/core/io/pwrite_spec.rb @@ -0,0 +1,45 @@ +# -*- encoding: utf-8 -*- +require_relative '../../spec_helper' + +ruby_version_is "2.5" do + platform_is_not :windows do + describe "IO#pwrite" do + before :each do + @fname = tmp("io_pwrite.txt") + @file = File.open(@fname, "w+") + end + + after :each do + @file.close + rm_r @fname + end + + it "returns the number of bytes written" do + @file.pwrite("foo", 0).should == 3 + end + + it "accepts a string and an offset" do + @file.pwrite("foo", 2) + @file.pread(3, 2).should == "foo" + end + + it "does not advance the pointer in the file" do + @file.pwrite("bar", 3) + @file.write("foo") + @file.pread(6, 0).should == "foobar" + end + + it "raises IOError when file is not open in write mode" do + File.open(@fname, "r") do |file| + lambda { file.pwrite("foo", 1) }.should raise_error(IOError) + end + end + + it "raises IOError when file is closed" do + file = File.open(@fname, "w+") + file.close + lambda { file.pwrite("foo", 1) }.should raise_error(IOError) + end + end + end +end |