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a34db218ad
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
84 lines
2.6 KiB
Ruby
84 lines
2.6 KiB
Ruby
# -*- encoding: utf-8 -*-
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes.rb', __FILE__)
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describe "String#insert with index, other" do
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it "inserts other before the character at the given index" do
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"abcd".insert(0, 'X').should == "Xabcd"
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"abcd".insert(3, 'X').should == "abcXd"
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"abcd".insert(4, 'X').should == "abcdX"
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end
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it "modifies self in place" do
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a = "abcd"
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a.insert(4, 'X').should == "abcdX"
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a.should == "abcdX"
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end
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it "inserts after the given character on an negative count" do
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"abcd".insert(-5, 'X').should == "Xabcd"
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"abcd".insert(-3, 'X').should == "abXcd"
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"abcd".insert(-1, 'X').should == "abcdX"
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end
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it "raises an IndexError if the index is beyond string" do
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lambda { "abcd".insert(5, 'X') }.should raise_error(IndexError)
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lambda { "abcd".insert(-6, 'X') }.should raise_error(IndexError)
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end
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it "converts index to an integer using to_int" do
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other = mock('-3')
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other.should_receive(:to_int).and_return(-3)
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"abcd".insert(other, "XYZ").should == "abXYZcd"
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end
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it "converts other to a string using to_str" do
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other = mock('XYZ')
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other.should_receive(:to_str).and_return("XYZ")
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"abcd".insert(-3, other).should == "abXYZcd"
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end
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it "taints self if string to insert is tainted" do
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str = "abcd"
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str.insert(0, "T".taint).tainted?.should == true
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str = "abcd"
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other = mock('T')
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def other.to_str() "T".taint end
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str.insert(0, other).tainted?.should == true
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end
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it "raises a TypeError if other can't be converted to string" do
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lambda { "abcd".insert(-6, Object.new)}.should raise_error(TypeError)
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lambda { "abcd".insert(-6, []) }.should raise_error(TypeError)
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lambda { "abcd".insert(-6, mock('x')) }.should raise_error(TypeError)
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end
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it "raises a #{frozen_error_class} if self is frozen" do
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str = "abcd".freeze
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lambda { str.insert(4, '') }.should raise_error(frozen_error_class)
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lambda { str.insert(4, 'X') }.should raise_error(frozen_error_class)
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end
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with_feature :encoding do
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it "inserts a character into a multibyte encoded string" do
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"ありがとう".insert(1, 'ü').should == "あüりがとう"
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end
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it "returns a String in the compatible encoding" do
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str = "".force_encoding(Encoding::US_ASCII)
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str.insert(0, "ありがとう")
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str.encoding.should == Encoding::UTF_8
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end
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it "raises an Encoding::CompatibilityError if the encodings are incompatible" do
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pat = "ア".encode Encoding::EUC_JP
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lambda do
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"あれ".insert 0, pat
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end.should raise_error(Encoding::CompatibilityError)
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end
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end
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end
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