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			27 lines
		
	
	
	
		
			643 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			27 lines
		
	
	
	
		
			643 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require_relative '../../spec_helper'
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| require_relative 'fixtures/classes'
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| 
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| describe "IO#<<" do
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|   it "writes an object to the IO stream" do
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|     -> {
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|       $stderr << "Oh noes, an error!"
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|     }.should output_to_fd("Oh noes, an error!", $stderr)
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|   end
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| 
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|   it "calls #to_s on the object to print it" do
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|     -> {
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|       $stderr << 1337
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|     }.should output_to_fd("1337", $stderr)
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|   end
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| 
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|   it "raises an error if the stream is closed" do
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|     io = IOSpecs.closed_io
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|     -> { io << "test" }.should raise_error(IOError)
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|   end
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| 
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|   it "returns self" do
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|     -> {
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|       ($stderr << "to_stderr").should == $stderr
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|     }.should output(nil, "to_stderr")
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|   end
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| end
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