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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-05-07 12:04:49 +0000 |
commit | a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5 (patch) | |
tree | 9eef7f720314ebaff56845a74e203770e62284e4 /spec/rubyspec/library/stringio/print_spec.rb | |
parent | 52df1d0d3370919711c0577aaa42d1a864709885 (diff) | |
download | ruby-a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5.tar.gz |
Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
These files can therefore be updated like any other file in MRI.
Instructions are provided in spec/README.
[Feature #13156] [ruby-core:79246]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/rubyspec/library/stringio/print_spec.rb')
-rw-r--r-- | spec/rubyspec/library/stringio/print_spec.rb | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/spec/rubyspec/library/stringio/print_spec.rb b/spec/rubyspec/library/stringio/print_spec.rb new file mode 100644 index 0000000000..0f67aeb921 --- /dev/null +++ b/spec/rubyspec/library/stringio/print_spec.rb @@ -0,0 +1,100 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "StringIO#print" do + before :each do + @io = StringIO.new('example') + end + + it "prints $_ when passed no arguments" do + $_ = nil + @io.print + @io.string.should == "example" + + $_ = "blah" + @io.print + @io.string.should == "blahple" + end + + it "prints the passed arguments to self" do + @io.print(5, 6, 7, 8) + @io.string.should == "5678ple" + end + + it "tries to convert the passed Object to a String using #to_s" do + obj = mock("to_s") + obj.should_receive(:to_s).and_return("to_s") + @io.print(obj) + @io.string.should == "to_sple" + end + + it "returns nil" do + @io.print(1, 2, 3).should be_nil + end + + it "pads self with \\000 when the current position is after the end" do + @io.pos = 10 + @io.print(1, 2, 3) + @io.string.should == "example\000\000\000123" + end + + it "honors the output record separator global" do + old_rs, $\ = $\, 'x' + + begin + @io.print(5, 6, 7, 8) + @io.string.should == '5678xle' + ensure + $\ = old_rs + end + end + + it "updates the current position" do + @io.print(1, 2, 3) + @io.pos.should eql(3) + + @io.print(1, 2, 3) + @io.pos.should eql(6) + end + + it "correctly updates the current position when honoring the output record separator global" do + old_rs, $\ = $\, 'x' + + begin + @io.print(5, 6, 7, 8) + @io.pos.should eql(5) + ensure + $\ = old_rs + end + end +end + +describe "StringIO#print when in append mode" do + before :each do + @io = StringIO.new("example", "a") + end + + it "appends the passed argument to the end of self" do + @io.print(", just testing") + @io.string.should == "example, just testing" + + @io.print(" and more testing") + @io.string.should == "example, just testing and more testing" + end + + it "correctly updates self's position" do + @io.print(", testing") + @io.pos.should eql(16) + end +end + +describe "StringIO#print when self is not writable" do + it "raises an IOError" do + io = StringIO.new("test", "r") + lambda { io.print("test") }.should raise_error(IOError) + + io = StringIO.new("test") + io.close_write + lambda { io.print("test") }.should raise_error(IOError) + end +end |