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authoreregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
committereregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
commit1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch)
treea3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/core/io/try_convert_spec.rb
parent75bfc6440d595bf339007f4fb280fd4d743e89c1 (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/core/io/try_convert_spec.rb')
-rw-r--r--spec/ruby/core/io/try_convert_spec.rb49
1 files changed, 49 insertions, 0 deletions
diff --git a/spec/ruby/core/io/try_convert_spec.rb b/spec/ruby/core/io/try_convert_spec.rb
new file mode 100644
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+++ b/spec/ruby/core/io/try_convert_spec.rb
@@ -0,0 +1,49 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "IO.try_convert" do
+ before :each do
+ @name = tmp("io_try_convert.txt")
+ @io = new_io @name
+ end
+
+ after :each do
+ @io.close unless @io.closed?
+ rm_r @name
+ end
+
+ it "returns the passed IO object" do
+ IO.try_convert(@io).should equal(@io)
+ end
+
+ it "does not call #to_io on an IO instance" do
+ @io.should_not_receive(:to_io)
+ IO.try_convert(@io)
+ end
+
+ it "calls #to_io to coerce an object" do
+ obj = mock("io")
+ obj.should_receive(:to_io).and_return(@io)
+ IO.try_convert(obj).should equal(@io)
+ end
+
+ it "returns nil when the passed object does not respond to #to_io" do
+ IO.try_convert(mock("io")).should be_nil
+ end
+
+ it "return nil when BasicObject is passed" do
+ IO.try_convert(BasicObject.new).should be_nil
+ end
+
+ it "raises a TypeError if the object does not return an IO from #to_io" do
+ obj = mock("io")
+ obj.should_receive(:to_io).and_return("io")
+ lambda { IO.try_convert(obj) }.should raise_error(TypeError)
+ end
+
+ it "propagates an exception raised by #to_io" do
+ obj = mock("io")
+ obj.should_receive(:to_io).and_raise(TypeError.new)
+ lambda{ IO.try_convert(obj) }.should raise_error(TypeError)
+ end
+end