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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
100 lines
3 KiB
Ruby
100 lines
3 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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describe "Time#+" do
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it "increments the time by the specified amount" do
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(Time.at(0) + 100).should == Time.at(100)
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end
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it "is a commutative operator" do
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(Time.at(1.1) + 0.9).should == Time.at(0.9) + 1.1
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end
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it "adds a negative Float" do
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t = Time.at(100) + -1.3
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t.usec.should == 699999
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t.to_i.should == 98
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end
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it "raises a TypeError if given argument is a coercible String" do
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lambda { Time.now + "1" }.should raise_error(TypeError)
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lambda { Time.now + "0.1" }.should raise_error(TypeError)
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lambda { Time.now + "1/3" }.should raise_error(TypeError)
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end
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it "increments the time by the specified amount as rational numbers" do
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(Time.at(Rational(11, 10)) + Rational(9, 10)).should == Time.at(2)
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end
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it "accepts arguments that can be coerced into Rational" do
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(obj = mock_numeric('10')).should_receive(:to_r).and_return(Rational(10))
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(Time.at(100) + obj).should == Time.at(110)
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end
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it "raises TypeError on argument that can't be coerced into Rational" do
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lambda { Time.now + Object.new }.should raise_error(TypeError)
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lambda { Time.now + "stuff" }.should raise_error(TypeError)
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end
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it "returns a UTC time if self is UTC" do
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(Time.utc(2012) + 10).utc?.should == true
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end
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it "returns a non-UTC time if self is non-UTC" do
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(Time.local(2012) + 10).utc?.should == false
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end
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it "returns a time with the same fixed offset as self" do
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(Time.new(2012, 1, 1, 0, 0, 0, 3600) + 10).utc_offset.should == 3600
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end
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it "does not return a subclass instance" do
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c = Class.new(Time)
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x = c.now + 1
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x.should be_an_instance_of(Time)
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end
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it "raises TypeError on Time argument" do
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lambda { Time.now + Time.now }.should raise_error(TypeError)
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end
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it "raises TypeError on nil argument" do
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lambda { Time.now + nil }.should raise_error(TypeError)
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end
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#see [ruby-dev:38446]
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it "tracks microseconds" do
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time = Time.at(0)
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time += Rational(123_456, 1_000_000)
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time.usec.should == 123_456
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time += Rational(654_321, 1_000_000)
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time.usec.should == 777_777
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end
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it "tracks nanoseconds" do
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time = Time.at(0)
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time += Rational(123_456_789, 1_000_000_000)
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time.nsec.should == 123_456_789
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time += Rational(876_543_210, 1_000_000_000)
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time.nsec.should == 999_999_999
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end
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it "maintains precision" do
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t = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
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t.should_not == Time.at(9)
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end
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it "maintains microseconds precision" do
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time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
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time.usec.should == 999_999
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end
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it "maintains nanoseconds precision" do
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time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
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time.nsec.should == 999_999_999
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end
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it "maintains subseconds precision" do
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time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
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time.subsec.should == Rational(999_999_999_999_999, 1_000_000_000_000_000)
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end
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end
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