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a34db218ad
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61504 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
113 lines
4 KiB
Ruby
113 lines
4 KiB
Ruby
# -*- encoding: binary -*-
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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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# TODO: rewrite all these specs
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describe "String#squeeze" do
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it "returns new string where runs of the same character are replaced by a single character when no args are given" do
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"yellow moon".squeeze.should == "yelow mon"
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end
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it "only squeezes chars that are in the intersection of all sets given" do
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"woot squeeze cheese".squeeze("eost", "queo").should == "wot squeze chese"
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" now is the".squeeze(" ").should == " now is the"
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end
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it "negates sets starting with ^" do
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s = "<<subbookkeeper!!!>>"
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s.squeeze("beko", "^e").should == s.squeeze("bko")
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s.squeeze("^<bek!>").should == s.squeeze("o")
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s.squeeze("^o").should == s.squeeze("<bek!>")
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s.squeeze("^").should == s
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"^__^".squeeze("^^").should == "^_^"
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"((^^__^^))".squeeze("_^").should == "((^_^))"
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end
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it "squeezes all chars in a sequence" do
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s = "--subbookkeeper--"
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s.squeeze("\x00-\xFF").should == s.squeeze
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s.squeeze("bk-o").should == s.squeeze("bklmno")
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s.squeeze("b-e").should == s.squeeze("bcde")
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s.squeeze("e-").should == "-subbookkeper-"
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s.squeeze("-e").should == "-subbookkeper-"
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s.squeeze("---").should == "-subbookkeeper-"
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"ook--001122".squeeze("--2").should == "ook-012"
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"ook--(())".squeeze("(--").should == "ook-()"
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s.squeeze("^b-e").should == "-subbokeeper-"
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"^^__^^".squeeze("^^-^").should == "^^_^^"
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"^^--^^".squeeze("^---").should == "^--^"
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s.squeeze("b-dk-o-").should == "-subokeeper-"
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s.squeeze("-b-dk-o").should == "-subokeeper-"
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s.squeeze("b-d-k-o").should == "-subokeeper-"
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s.squeeze("bc-e").should == "--subookkeper--"
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s.squeeze("^bc-e").should == "-subbokeeper-"
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"AABBCCaabbcc[[]]".squeeze("A-a").should == "ABCabbcc[]"
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end
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it "raises an ArgumentError when the parameter is out of sequence" do
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s = "--subbookkeeper--"
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lambda { s.squeeze("e-b") }.should raise_error(ArgumentError)
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lambda { s.squeeze("^e-b") }.should raise_error(ArgumentError)
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end
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it "taints the result when self is tainted" do
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"hello".taint.squeeze("e").tainted?.should == true
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"hello".taint.squeeze("a-z").tainted?.should == true
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"hello".squeeze("e".taint).tainted?.should == false
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"hello".squeeze("l".taint).tainted?.should == false
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end
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it "tries to convert each set arg to a string using to_str" do
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other_string = mock('lo')
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other_string.should_receive(:to_str).and_return("lo")
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other_string2 = mock('o')
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other_string2.should_receive(:to_str).and_return("o")
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"hello room".squeeze(other_string, other_string2).should == "hello rom"
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end
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it "raises a TypeError when one set arg can't be converted to a string" do
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lambda { "hello world".squeeze([]) }.should raise_error(TypeError)
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lambda { "hello world".squeeze(Object.new)}.should raise_error(TypeError)
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lambda { "hello world".squeeze(mock('x')) }.should raise_error(TypeError)
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end
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it "returns subclass instances when called on a subclass" do
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StringSpecs::MyString.new("oh no!!!").squeeze("!").should be_an_instance_of(StringSpecs::MyString)
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end
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end
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describe "String#squeeze!" do
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it "modifies self in place and returns self" do
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a = "yellow moon"
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a.squeeze!.should equal(a)
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a.should == "yelow mon"
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end
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it "returns nil if no modifications were made" do
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a = "squeeze"
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a.squeeze!("u", "sq").should == nil
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a.squeeze!("q").should == nil
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a.should == "squeeze"
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end
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it "raises an ArgumentError when the parameter is out of sequence" do
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s = "--subbookkeeper--"
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lambda { s.squeeze!("e-b") }.should raise_error(ArgumentError)
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lambda { s.squeeze!("^e-b") }.should raise_error(ArgumentError)
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end
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it "raises a #{frozen_error_class} when self is frozen" do
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a = "yellow moon"
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a.freeze
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lambda { a.squeeze!("") }.should raise_error(frozen_error_class)
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lambda { a.squeeze! }.should raise_error(frozen_error_class)
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end
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end
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