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Diffstat (limited to 'spec/ruby/core/string/squeeze_spec.rb')
-rw-r--r-- | spec/ruby/core/string/squeeze_spec.rb | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/spec/ruby/core/string/squeeze_spec.rb b/spec/ruby/core/string/squeeze_spec.rb new file mode 100644 index 0000000000..d6b3fb6de6 --- /dev/null +++ b/spec/ruby/core/string/squeeze_spec.rb @@ -0,0 +1,113 @@ +# -*- encoding: binary -*- +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes.rb', __FILE__) + +# TODO: rewrite all these specs + +describe "String#squeeze" do + it "returns new string where runs of the same character are replaced by a single character when no args are given" do + "yellow moon".squeeze.should == "yelow mon" + end + + it "only squeezes chars that are in the intersection of all sets given" do + "woot squeeze cheese".squeeze("eost", "queo").should == "wot squeze chese" + " now is the".squeeze(" ").should == " now is the" + end + + it "negates sets starting with ^" do + s = "<<subbookkeeper!!!>>" + s.squeeze("beko", "^e").should == s.squeeze("bko") + s.squeeze("^<bek!>").should == s.squeeze("o") + s.squeeze("^o").should == s.squeeze("<bek!>") + s.squeeze("^").should == s + "^__^".squeeze("^^").should == "^_^" + "((^^__^^))".squeeze("_^").should == "((^_^))" + end + + it "squeezes all chars in a sequence" do + s = "--subbookkeeper--" + s.squeeze("\x00-\xFF").should == s.squeeze + s.squeeze("bk-o").should == s.squeeze("bklmno") + s.squeeze("b-e").should == s.squeeze("bcde") + s.squeeze("e-").should == "-subbookkeper-" + s.squeeze("-e").should == "-subbookkeper-" + s.squeeze("---").should == "-subbookkeeper-" + "ook--001122".squeeze("--2").should == "ook-012" + "ook--(())".squeeze("(--").should == "ook-()" + s.squeeze("^b-e").should == "-subbokeeper-" + "^^__^^".squeeze("^^-^").should == "^^_^^" + "^^--^^".squeeze("^---").should == "^--^" + + s.squeeze("b-dk-o-").should == "-subokeeper-" + s.squeeze("-b-dk-o").should == "-subokeeper-" + s.squeeze("b-d-k-o").should == "-subokeeper-" + + s.squeeze("bc-e").should == "--subookkeper--" + s.squeeze("^bc-e").should == "-subbokeeper-" + + "AABBCCaabbcc[[]]".squeeze("A-a").should == "ABCabbcc[]" + end + + it "raises an ArgumentError when the parameter is out of sequence" do + s = "--subbookkeeper--" + lambda { s.squeeze("e-b") }.should raise_error(ArgumentError) + lambda { s.squeeze("^e-b") }.should raise_error(ArgumentError) + end + + it "taints the result when self is tainted" do + "hello".taint.squeeze("e").tainted?.should == true + "hello".taint.squeeze("a-z").tainted?.should == true + + "hello".squeeze("e".taint).tainted?.should == false + "hello".squeeze("l".taint).tainted?.should == false + end + + it "tries to convert each set arg to a string using to_str" do + other_string = mock('lo') + other_string.should_receive(:to_str).and_return("lo") + + other_string2 = mock('o') + other_string2.should_receive(:to_str).and_return("o") + + "hello room".squeeze(other_string, other_string2).should == "hello rom" + end + + it "raises a TypeError when one set arg can't be converted to a string" do + lambda { "hello world".squeeze([]) }.should raise_error(TypeError) + lambda { "hello world".squeeze(Object.new)}.should raise_error(TypeError) + lambda { "hello world".squeeze(mock('x')) }.should raise_error(TypeError) + end + + it "returns subclass instances when called on a subclass" do + StringSpecs::MyString.new("oh no!!!").squeeze("!").should be_an_instance_of(StringSpecs::MyString) + end +end + +describe "String#squeeze!" do + it "modifies self in place and returns self" do + a = "yellow moon" + a.squeeze!.should equal(a) + a.should == "yelow mon" + end + + it "returns nil if no modifications were made" do + a = "squeeze" + a.squeeze!("u", "sq").should == nil + a.squeeze!("q").should == nil + a.should == "squeeze" + end + + it "raises an ArgumentError when the parameter is out of sequence" do + s = "--subbookkeeper--" + lambda { s.squeeze!("e-b") }.should raise_error(ArgumentError) + lambda { s.squeeze!("^e-b") }.should raise_error(ArgumentError) + end + + it "raises a RuntimeError when self is frozen" do + a = "yellow moon" + a.freeze + + lambda { a.squeeze!("") }.should raise_error(RuntimeError) + lambda { a.squeeze! }.should raise_error(RuntimeError) + end +end |