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Diffstat (limited to 'spec/rubyspec/core/kernel/Float_spec.rb')
-rw-r--r-- | spec/rubyspec/core/kernel/Float_spec.rb | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/spec/rubyspec/core/kernel/Float_spec.rb b/spec/rubyspec/core/kernel/Float_spec.rb deleted file mode 100644 index ee20190094..0000000000 --- a/spec/rubyspec/core/kernel/Float_spec.rb +++ /dev/null @@ -1,316 +0,0 @@ -require File.expand_path('../../../spec_helper', __FILE__) -require File.expand_path('../fixtures/classes', __FILE__) - -describe :kernel_float, shared: true do - it "returns the identical Float for numeric Floats" do - float = 1.12 - float2 = @object.send(:Float, float) - float2.should == float - float2.object_id.should == float.object_id - end - - it "returns a Float for Fixnums" do - @object.send(:Float, 1).should == 1.0 - end - - it "returns a Float for Complex with only a real part" do - @object.send(:Float, Complex(1)).should == 1.0 - end - - it "returns a Float for Bignums" do - @object.send(:Float, 1000000000000).should == 1000000000000.0 - end - - it "raises an ArgumentError for nil" do - lambda { @object.send(:Float, nil) }.should raise_error(TypeError) - end - - it "returns the identical NaN for NaN" do - nan = nan_value - nan.nan?.should be_true - nan2 = @object.send(:Float, nan) - nan2.nan?.should be_true - nan2.should equal(nan) - end - - it "returns the same Infinity for Infinity" do - infinity = infinity_value - infinity2 = @object.send(:Float, infinity) - infinity2.should == infinity_value - infinity.should equal(infinity2) - end - - it "converts Strings to floats without calling #to_f" do - string = "10" - string.should_not_receive(:to_f) - @object.send(:Float, string).should == 10.0 - end - - it "converts Strings with decimal points into Floats" do - @object.send(:Float, "10.0").should == 10.0 - end - - it "raises an ArgumentError for a String of word characters" do - lambda { @object.send(:Float, "float") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError if there are two decimal points in the String" do - lambda { @object.send(:Float, "10.0.0") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String of numbers followed by word characters" do - lambda { @object.send(:Float, "10D") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String of word characters followed by numbers" do - lambda { @object.send(:Float, "D10") }.should raise_error(ArgumentError) - end - - it "is strict about the string form even across newlines" do - lambda { @object.send(:Float, "not a number\n10") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "10\nnot a number") }.should raise_error(ArgumentError) - end - - it "converts String subclasses to floats without calling #to_f" do - my_string = Class.new(String) do - def to_f() 1.2 end - end - - @object.send(:Float, my_string.new("10")).should == 10.0 - end - - it "returns a positive Float if the string is prefixed with +" do - @object.send(:Float, "+10").should == 10.0 - @object.send(:Float, " +10").should == 10.0 - end - - it "returns a negative Float if the string is prefixed with +" do - @object.send(:Float, "-10").should == -10.0 - @object.send(:Float, " -10").should == -10.0 - end - - it "raises an ArgumentError if a + or - is embedded in a String" do - lambda { @object.send(:Float, "1+1") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "1-1") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError if a String has a trailing + or -" do - lambda { @object.send(:Float, "11+") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "11-") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String with a leading _" do - lambda { @object.send(:Float, "_1") }.should raise_error(ArgumentError) - end - - it "returns a value for a String with an embedded _" do - @object.send(:Float, "1_000").should == 1000.0 - end - - it "raises an ArgumentError for a String with a trailing _" do - lambda { @object.send(:Float, "10_") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String of \\0" do - lambda { @object.send(:Float, "\0") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String with a leading \\0" do - lambda { @object.send(:Float, "\01") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String with an embedded \\0" do - lambda { @object.send(:Float, "1\01") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String with a trailing \\0" do - lambda { @object.send(:Float, "1\0") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String that is just an empty space" do - lambda { @object.send(:Float, " ") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError for a String that with an embedded space" do - lambda { @object.send(:Float, "1 2") }.should raise_error(ArgumentError) - end - - it "returns a value for a String with a leading space" do - @object.send(:Float, " 1").should == 1.0 - end - - it "returns a value for a String with a trailing space" do - @object.send(:Float, "1 ").should == 1.0 - end - - it "returns a value for a String with any leading whitespace" do - @object.send(:Float, "\t\n1").should == 1.0 - end - - it "returns a value for a String with any trailing whitespace" do - @object.send(:Float, "1\t\n").should == 1.0 - end - - %w(e E).each do |e| - it "raises an ArgumentError if #{e} is the trailing character" do - lambda { @object.send(:Float, "2#{e}") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError if #{e} is the leading character" do - lambda { @object.send(:Float, "#{e}2") }.should raise_error(ArgumentError) - end - - it "returns Infinity for '2#{e}1000'" do - @object.send(:Float, "2#{e}1000").should == Float::INFINITY - end - - it "returns 0 for '2#{e}-1000'" do - @object.send(:Float, "2#{e}-1000").should == 0 - end - - it "allows embedded _ in a number on either side of the #{e}" do - @object.send(:Float, "2_0#{e}100").should == 20e100 - @object.send(:Float, "20#{e}1_00").should == 20e100 - @object.send(:Float, "2_0#{e}1_00").should == 20e100 - end - - it "raises an exception if a space is embedded on either side of the '#{e}'" do - lambda { @object.send(:Float, "2 0#{e}100") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "20#{e}1 00") }.should raise_error(ArgumentError) - end - - it "raises an exception if there's a leading _ on either side of the '#{e}'" do - lambda { @object.send(:Float, "_20#{e}100") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "20#{e}_100") }.should raise_error(ArgumentError) - end - - it "raises an exception if there's a trailing _ on either side of the '#{e}'" do - lambda { @object.send(:Float, "20_#{e}100") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "20#{e}100_") }.should raise_error(ArgumentError) - end - - it "allows decimal points on the left side of the '#{e}'" do - @object.send(:Float, "2.0#{e}2").should == 2e2 - end - - it "raises an ArgumentError if there's a decimal point on the right side of the '#{e}'" do - lambda { @object.send(:Float, "20#{e}2.0") }.should raise_error(ArgumentError) - end - end - - describe "for hexadecimal literals with binary exponent" do - %w(p P).each do |p| - it "interprets the fractional part (on the left side of '#{p}') in hexadecimal" do - @object.send(:Float, "0x10#{p}0").should == 16.0 - end - - it "interprets the exponent (on the right of '#{p}') in decimal" do - @object.send(:Float, "0x1#{p}10").should == 1024.0 - end - - it "raises an ArgumentError if #{p} is the trailing character" do - lambda { @object.send(:Float, "0x1#{p}") }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError if #{p} is the leading character" do - lambda { @object.send(:Float, "0x#{p}1") }.should raise_error(ArgumentError) - end - - it "returns Infinity for '0x1#{p}10000'" do - @object.send(:Float, "0x1#{p}10000").should == Float::INFINITY - end - - it "returns 0 for '0x1#{p}-10000'" do - @object.send(:Float, "0x1#{p}-10000").should == 0 - end - - it "allows embedded _ in a number on either side of the #{p}" do - @object.send(:Float, "0x1_0#{p}10").should == 16384.0 - @object.send(:Float, "0x10#{p}1_0").should == 16384.0 - @object.send(:Float, "0x1_0#{p}1_0").should == 16384.0 - end - - it "raises an exception if a space is embedded on either side of the '#{p}'" do - lambda { @object.send(:Float, "0x1 0#{p}10") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "0x10#{p}1 0") }.should raise_error(ArgumentError) - end - - it "raises an exception if there's a leading _ on either side of the '#{p}'" do - lambda { @object.send(:Float, "0x_10#{p}10") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "0x10#{p}_10") }.should raise_error(ArgumentError) - end - - it "raises an exception if there's a trailing _ on either side of the '#{p}'" do - lambda { @object.send(:Float, "0x10_#{p}10") }.should raise_error(ArgumentError) - lambda { @object.send(:Float, "0x10#{p}10_") }.should raise_error(ArgumentError) - end - - it "allows hexadecimal points on the left side of the '#{p}'" do - @object.send(:Float, "0x1.8#{p}0").should == 1.5 - end - - it "raises an ArgumentError if there's a decimal point on the right side of the '#{p}'" do - lambda { @object.send(:Float, "0x1#{p}1.0") }.should raise_error(ArgumentError) - end - end - end - - it "returns a Float that can be a parameter to #Float again" do - float = @object.send(:Float, "10") - @object.send(:Float, float).should == 10.0 - end - - it "otherwise, converts the given argument to a Float by calling #to_f" do - (obj = mock('1.2')).should_receive(:to_f).once.and_return(1.2) - obj.should_not_receive(:to_i) - @object.send(:Float, obj).should == 1.2 - end - - it "returns the identical NaN if to_f is called and it returns NaN" do - nan = nan_value - (nan_to_f = mock('NaN')).should_receive(:to_f).once.and_return(nan) - nan2 = @object.send(:Float, nan_to_f) - nan2.nan?.should be_true - nan2.should equal(nan) - end - - it "returns the identical Infinity if to_f is called and it returns Infinity" do - infinity = infinity_value - (infinity_to_f = mock('Infinity')).should_receive(:to_f).once.and_return(infinity) - infinity2 = @object.send(:Float, infinity_to_f) - infinity2.should equal(infinity) - end - - it "raises a TypeError if #to_f is not provided" do - lambda { @object.send(:Float, mock('x')) }.should raise_error(TypeError) - end - - it "raises a TypeError if #to_f returns a String" do - (obj = mock('ha!')).should_receive(:to_f).once.and_return('ha!') - lambda { @object.send(:Float, obj) }.should raise_error(TypeError) - end - - it "raises a TypeError if #to_f returns an Integer" do - (obj = mock('123')).should_receive(:to_f).once.and_return(123) - lambda { @object.send(:Float, obj) }.should raise_error(TypeError) - end - - it "raises a RangeError when passed a Complex argument" do - c = Complex(2, 3) - lambda { @object.send(:Float, c) }.should raise_error(RangeError) - end -end - -describe "Kernel.Float" do - it_behaves_like :kernel_float, :Float, Kernel -end - -describe "Kernel#Float" do - it_behaves_like :kernel_float, :Float, Object.new -end - -describe "Kernel#Float" do - it "is a private method" do - Kernel.should have_private_instance_method(:Float) - end -end |