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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/core/string/try_convert_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/core/string/try_convert_spec.rb')
-rw-r--r-- | spec/rubyspec/core/string/try_convert_spec.rb | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/spec/rubyspec/core/string/try_convert_spec.rb b/spec/rubyspec/core/string/try_convert_spec.rb new file mode 100644 index 0000000000..ce12839c59 --- /dev/null +++ b/spec/rubyspec/core/string/try_convert_spec.rb @@ -0,0 +1,50 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) + +describe "String.try_convert" do + it "returns the argument if it's a String" do + x = String.new + String.try_convert(x).should equal(x) + end + + it "returns the argument if it's a kind of String" do + x = StringSpecs::MyString.new + String.try_convert(x).should equal(x) + end + + it "returns nil when the argument does not respond to #to_str" do + String.try_convert(Object.new).should be_nil + end + + it "sends #to_str to the argument and returns the result if it's nil" do + obj = mock("to_str") + obj.should_receive(:to_str).and_return(nil) + String.try_convert(obj).should be_nil + end + + it "sends #to_str to the argument and returns the result if it's a String" do + x = String.new + obj = mock("to_str") + obj.should_receive(:to_str).and_return(x) + String.try_convert(obj).should equal(x) + end + + it "sends #to_str to the argument and returns the result if it's a kind of String" do + x = StringSpecs::MyString.new + obj = mock("to_str") + obj.should_receive(:to_str).and_return(x) + String.try_convert(obj).should equal(x) + end + + it "sends #to_str to the argument and raises TypeError if it's not a kind of String" do + obj = mock("to_str") + obj.should_receive(:to_str).and_return(Object.new) + lambda { String.try_convert obj }.should raise_error(TypeError) + end + + it "does not rescue exceptions raised by #to_str" do + obj = mock("to_str") + obj.should_receive(:to_str).and_raise(RuntimeError) + lambda { String.try_convert obj }.should raise_error(RuntimeError) + end +end |