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117 lines
4.3 KiB
Ruby
117 lines
4.3 KiB
Ruby
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# -*- 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#rjust with length, padding" do
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it "returns a new string of specified length with self right justified and padded with padstr" do
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"hello".rjust(20, '1234').should == "123412341234123hello"
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"".rjust(1, "abcd").should == "a"
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"".rjust(2, "abcd").should == "ab"
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"".rjust(3, "abcd").should == "abc"
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"".rjust(4, "abcd").should == "abcd"
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"".rjust(6, "abcd").should == "abcdab"
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"OK".rjust(3, "abcd").should == "aOK"
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"OK".rjust(4, "abcd").should == "abOK"
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"OK".rjust(6, "abcd").should == "abcdOK"
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"OK".rjust(8, "abcd").should == "abcdabOK"
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end
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it "pads with whitespace if no padstr is given" do
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"hello".rjust(20).should == " hello"
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end
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it "returns self if it's longer than or as long as the specified length" do
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"".rjust(0).should == ""
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"".rjust(-1).should == ""
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"hello".rjust(4).should == "hello"
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"hello".rjust(-1).should == "hello"
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"this".rjust(3).should == "this"
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"radiology".rjust(8, '-').should == "radiology"
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end
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it "taints result when self or padstr is tainted" do
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"x".taint.rjust(4).tainted?.should == true
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"x".taint.rjust(0).tainted?.should == true
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"".taint.rjust(0).tainted?.should == true
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"x".taint.rjust(4, "*").tainted?.should == true
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"x".rjust(4, "*".taint).tainted?.should == true
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end
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it "tries to convert length to an integer using to_int" do
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"^".rjust(3.8, "^_").should == "^_^"
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obj = mock('3')
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obj.should_receive(:to_int).and_return(3)
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"o".rjust(obj, "o_").should == "o_o"
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end
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it "raises a TypeError when length can't be converted to an integer" do
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lambda { "hello".rjust("x") }.should raise_error(TypeError)
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lambda { "hello".rjust("x", "y") }.should raise_error(TypeError)
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lambda { "hello".rjust([]) }.should raise_error(TypeError)
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lambda { "hello".rjust(mock('x')) }.should raise_error(TypeError)
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end
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it "tries to convert padstr to a string using to_str" do
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padstr = mock('123')
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padstr.should_receive(:to_str).and_return("123")
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"hello".rjust(10, padstr).should == "12312hello"
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end
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it "raises a TypeError when padstr can't be converted" do
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lambda { "hello".rjust(20, []) }.should raise_error(TypeError)
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lambda { "hello".rjust(20, Object.new)}.should raise_error(TypeError)
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lambda { "hello".rjust(20, mock('x')) }.should raise_error(TypeError)
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end
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it "raises an ArgumentError when padstr is empty" do
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lambda { "hello".rjust(10, '') }.should raise_error(ArgumentError)
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end
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it "returns subclass instances when called on subclasses" do
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StringSpecs::MyString.new("").rjust(10).should be_an_instance_of(StringSpecs::MyString)
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StringSpecs::MyString.new("foo").rjust(10).should be_an_instance_of(StringSpecs::MyString)
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StringSpecs::MyString.new("foo").rjust(10, StringSpecs::MyString.new("x")).should be_an_instance_of(StringSpecs::MyString)
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"".rjust(10, StringSpecs::MyString.new("x")).should be_an_instance_of(String)
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"foo".rjust(10, StringSpecs::MyString.new("x")).should be_an_instance_of(String)
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end
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it "when padding is tainted and self is untainted returns a tainted string if and only if length is longer than self" do
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"hello".rjust(4, 'X'.taint).tainted?.should be_false
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"hello".rjust(5, 'X'.taint).tainted?.should be_false
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"hello".rjust(6, 'X'.taint).tainted?.should be_true
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end
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with_feature :encoding do
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describe "with width" do
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it "returns a String in the same encoding as the original" do
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str = "abc".force_encoding Encoding::IBM437
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result = str.rjust 5
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result.should == " abc"
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result.encoding.should equal(Encoding::IBM437)
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end
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end
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describe "with width, pattern" do
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it "returns a String in the compatible encoding" do
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str = "abc".force_encoding Encoding::IBM437
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result = str.rjust 5, "あ"
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result.should == "ああabc"
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result.encoding.should equal(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".rjust 5, 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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end
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