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89 lines
2.3 KiB
Ruby
89 lines
2.3 KiB
Ruby
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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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# Note: We can't completely spec this in terms of to_int() because hex()
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# allows the base to be changed by a base specifier in the string.
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# See http://groups.google.com/group/ruby-core-google/browse_frm/thread/b53e9c2003425703
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describe "String#oct" do
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it "treats numeric digits as base-8 digits by default" do
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"0".oct.should == 0
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"77".oct.should == 077
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"077".oct.should == 077
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end
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it "accepts numbers formatted as binary" do
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"0b1010".oct.should == 0b1010
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end
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it "accepts numbers formatted as hexadecimal" do
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"0xFF".oct.should == 0xFF
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end
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it "accepts numbers formatted as decimal" do
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"0d500".oct.should == 500
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end
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describe "with a leading minus sign" do
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it "treats numeric digits as base-8 digits by default" do
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"-12348".oct.should == -01234
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end
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it "accepts numbers formatted as binary" do
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"-0b0101".oct.should == -0b0101
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end
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it "accepts numbers formatted as hexadecimal" do
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"-0xEE".oct.should == -0xEE
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end
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it "accepts numbers formatted as decimal" do
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"-0d500".oct.should == -500
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end
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end
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describe "with a leading plus sign" do
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it "treats numeric digits as base-8 digits by default" do
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"+12348".oct.should == 01234
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end
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it "accepts numbers formatted as binary" do
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"+0b1010".oct.should == 0b1010
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end
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it "accepts numbers formatted as hexadecimal" do
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"+0xFF".oct.should == 0xFF
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end
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it "accepts numbers formatted as decimal" do
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"+0d500".oct.should == 500
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end
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end
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it "accepts a single underscore separating digits" do
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"755_333".oct.should == 0755_333
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end
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it "does not accept a sequence of underscores as part of a number" do
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"7__3".oct.should == 07
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"7___3".oct.should == 07
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"7__5".oct.should == 07
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end
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it "ignores characters that are incorrect for the base-8 digits" do
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"0o".oct.should == 0
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"5678".oct.should == 0567
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end
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it "returns 0 if no characters can be interpreted as a base-8 number" do
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"".oct.should == 0
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"+-5".oct.should == 0
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"wombat".oct.should == 0
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end
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it "returns 0 for strings with leading underscores" do
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"_7".oct.should == 0
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"_07".oct.should == 0
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" _7".oct.should == 0
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end
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end
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