diff options
| author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
|---|---|---|
| committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
| commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
| tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/library/stringio/ungetc_spec.rb | |
| parent | 75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff) | |
Move spec/rubyspec to spec/ruby for consistency
* 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
Diffstat (limited to 'spec/ruby/library/stringio/ungetc_spec.rb')
| -rw-r--r-- | spec/ruby/library/stringio/ungetc_spec.rb | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/spec/ruby/library/stringio/ungetc_spec.rb b/spec/ruby/library/stringio/ungetc_spec.rb new file mode 100644 index 0000000000..613d49cfbd --- /dev/null +++ b/spec/ruby/library/stringio/ungetc_spec.rb @@ -0,0 +1,72 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "StringIO#ungetc when passed [char]" do + before :each do + @io = StringIO.new('1234') + end + + it "writes the passed char before the current position" do + @io.pos = 1 + @io.ungetc(?A) + @io.string.should == 'A234' + end + + it "returns nil" do + @io.pos = 1 + @io.ungetc(?A).should be_nil + end + + it "decreases the current position by one" do + @io.pos = 2 + @io.ungetc(?A) + @io.pos.should eql(1) + end + + it "pads with \\000 when the current position is after the end" do + @io.pos = 15 + @io.ungetc(?A) + @io.string.should == "1234\000\000\000\000\000\000\000\000\000\000A" + end + + it "tries to convert the passed argument to an String using #to_str" do + obj = mock("to_str") + obj.should_receive(:to_str).and_return(?A) + + @io.pos = 1 + @io.ungetc(obj) + @io.string.should == "A234" + end + + it "raises a TypeError when the passed length can't be converted to an Integer or String" do + lambda { @io.ungetc(Object.new) }.should raise_error(TypeError) + end +end + +describe "StringIO#ungetc when self is not readable" do + it "raises an IOError" do + io = StringIO.new("test", "w") + io.pos = 1 + lambda { io.ungetc(?A) }.should raise_error(IOError) + + io = StringIO.new("test") + io.pos = 1 + io.close_read + lambda { io.ungetc(?A) }.should raise_error(IOError) + end +end + +# Note: This is incorrect. +# +# describe "StringIO#ungetc when self is not writable" do +# it "raises an IOError" do +# io = StringIO.new("test", "r") +# io.pos = 1 +# lambda { io.ungetc(?A) }.should raise_error(IOError) +# +# io = StringIO.new("test") +# io.pos = 1 +# io.close_write +# lambda { io.ungetc(?A) }.should raise_error(IOError) +# end +# end |