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require File.expand_path('../../../spec_helper', __FILE__)
describe "Float#divmod" do
it "returns an [quotient, modulus] from dividing self by other" do
values = 3.14.divmod(2)
values[0].should eql(1)
values[1].should be_close(1.14, TOLERANCE)
values = 2.8284.divmod(3.1415)
values[0].should eql(0)
values[1].should be_close(2.8284, TOLERANCE)
values = -1.0.divmod(bignum_value)
values[0].should eql(-1)
values[1].should be_close(9223372036854775808.000, TOLERANCE)
values = -1.0.divmod(1)
values[0].should eql(-1)
values[1].should eql(0.0)
end
# Behaviour established as correct in r23953
it "raises a FloatDomainError if self is NaN" do
lambda { nan_value.divmod(1) }.should raise_error(FloatDomainError)
end
# Behaviour established as correct in r23953
it "raises a FloatDomainError if other is NaN" do
lambda { 1.divmod(nan_value) }.should raise_error(FloatDomainError)
end
# Behaviour established as correct in r23953
it "raises a FloatDomainError if self is Infinity" do
lambda { infinity_value.divmod(1) }.should raise_error(FloatDomainError)
end
ruby_version_is ""..."1.9" do
it "raises FloatDomainError if other is zero" do
lambda { 1.0.divmod(0) }.should raise_error(FloatDomainError)
lambda { 1.0.divmod(0.0) }.should raise_error(FloatDomainError)
end
end
ruby_version_is "1.9" do
it "raises a ZeroDivisionError if other is zero" do
lambda { 1.0.divmod(0) }.should raise_error(ZeroDivisionError)
lambda { 1.0.divmod(0.0) }.should raise_error(ZeroDivisionError)
end
end
ruby_bug "redmine #5276", "1.9.2" do
it "returns the correct [quotient, modulus] even for large quotient" do
0.59.divmod(7.761021455128987e-11).first.should eql(7602092113)
end
end
end
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