<commit_before>require File.dirname(__FILE__) + '/../../spec_helper'
require File.dirname(__FILE__) + '/fixtures/classes'

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 "does nothing when at the beginning of self" do
    @io.ungetc(65)
    @io.string.should == '1234'
  end

  it "tries to convert the passed length to an Integer using #to_str" do
    obj = mock("to_int")
    obj.should_receive(:to_int).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" do
    lambda { @io.ungetc(Object.new) }.should raise_error(TypeError)
    lambda { @io.ungetc("A") }.should raise_error(TypeError)
  end
  
  ruby_version_is "" ... "1.8.7" do
    it "checks whether the passed length responds to #to_str" do
      obj = mock('method_missing to_int')
      obj.should_receive(:respond_to?).with(:to_int).and_return(true)
      obj.should_receive(:method_missing).with(:to_int).and_return(?A)
      @io.pos = 1
      @io.ungetc(obj)
      @io.string.should == "A234"
    end
  end

  ruby_version_is "1.8.7" do
    it "checks whether the passed length responds to #to_int (including private methods)" do
      obj = mock('method_missing to_int')
      obj.should_receive(:respond_to?).with(:to_int, true).and_return(true)
      obj.should_receive(:method_missing).with(:to_int).and_return(?A)
      @io.pos = 1
      @io.ungetc(obj)
      @io.string.should == "A234"
    end
  end
end

# Note: This is incorrect.
#<commit_msg>StringIO#ungetc checks whether self is readable.<commit_after>require File.dirname(__FILE__) + '/../../spec_helper'
require File.dirname(__FILE__) + '/fixtures/classes'

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 "does nothing when at the beginning of self" do
    @io.ungetc(65)
    @io.string.should == '1234'
  end

  it "tries to convert the passed length to an Integer using #to_str" do
    obj = mock("to_int")
    obj.should_receive(:to_int).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" do
    lambda { @io.ungetc(Object.new) }.should raise_error(TypeError)
    lambda { @io.ungetc("A") }.should raise_error(TypeError)
  end
  
  ruby_version_is "" ... "1.8.7" do
    it "checks whether the passed length responds to #to_str" do
      obj = mock('method_missing to_int')
      obj.should_receive(:respond_to?).with(:to_int).and_return(true)
      obj.should_receive(:method_missing).with(:to_int).and_return(?A)
      @io.pos = 1
      @io.ungetc(obj)
      @io.string.should == "A234"
    end
  end

  ruby_version_is "1.8.7" do
    it "checks whether the passed length responds to #to_int (including private methods)" do
      obj = mock('method_missing to_int')
      obj.should_receive(:respond_to?).with(:to_int, true).and_return(true)
      obj.should_receive(:method_missing).with(:to_int).and_return(?A)
      @io.pos = 1
      @io.ungetc(obj)
      @io.string.should == "A234"
    end
  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.
#
{'fraction_non_alphanumeric': 0.1358695652173913, 'fraction_numerical': 0.03260869565217391, 'mean_word_length': 2.997393570807993, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5545237', 'n_tokens_mistral': 1834, 'n_tokens_neox': 1667, 'n_words': 426}