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61 lines
1.5 KiB
Ruby
61 lines
1.5 KiB
Ruby
require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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describe "String.new" do
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it "returns an instance of String" do
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str = String.new
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str.should be_an_instance_of(String)
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end
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it "accepts an encoding argument" do
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xA4xA2 = [0xA4, 0xA2].pack('CC').force_encoding 'utf-8'
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str = String.new(xA4xA2, encoding: 'euc-jp')
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str.encoding.should == Encoding::EUC_JP
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end
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it "accepts a capacity argument" do
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String.new("", capacity: 100_000).should == ""
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String.new("abc", capacity: 100_000).should == "abc"
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end
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it "returns a fully-formed String" do
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str = String.new
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str.size.should == 0
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str << "more"
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str.should == "more"
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end
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it "returns a new string given a string argument" do
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str1 = "test"
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str = String.new(str1)
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str.should be_an_instance_of(String)
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str.should == str1
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str << "more"
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str.should == "testmore"
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end
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it "returns an instance of a subclass" do
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a = StringSpecs::MyString.new("blah")
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a.should be_an_instance_of(StringSpecs::MyString)
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a.should == "blah"
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end
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it "is called on subclasses" do
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s = StringSpecs::SubString.new
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s.special.should == nil
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s.should == ""
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s = StringSpecs::SubString.new "subclass"
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s.special.should == "subclass"
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s.should == ""
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end
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it "raises TypeError on inconvertible object" do
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-> { String.new 5 }.should raise_error(TypeError)
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-> { String.new nil }.should raise_error(TypeError)
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end
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it "returns a binary String" do
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String.new.encoding.should == Encoding::BINARY
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end
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end
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