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-rw-r--r--spec/rubyspec/core/time/plus_spec.rb100
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diff --git a/spec/rubyspec/core/time/plus_spec.rb b/spec/rubyspec/core/time/plus_spec.rb
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--- a/spec/rubyspec/core/time/plus_spec.rb
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-require File.expand_path('../../../spec_helper', __FILE__)
-
-describe "Time#+" do
- it "increments the time by the specified amount" do
- (Time.at(0) + 100).should == Time.at(100)
- end
-
- it "is a commutative operator" do
- (Time.at(1.1) + 0.9).should == Time.at(0.9) + 1.1
- end
-
- it "adds a negative Float" do
- t = Time.at(100) + -1.3
- t.usec.should == 699999
- t.to_i.should == 98
- end
-
- it "raises a TypeError if given argument is a coercible String" do
- lambda { Time.now + "1" }.should raise_error(TypeError)
- lambda { Time.now + "0.1" }.should raise_error(TypeError)
- lambda { Time.now + "1/3" }.should raise_error(TypeError)
- end
-
- it "increments the time by the specified amount as rational numbers" do
- (Time.at(Rational(11, 10)) + Rational(9, 10)).should == Time.at(2)
- end
-
- it "accepts arguments that can be coerced into Rational" do
- (obj = mock_numeric('10')).should_receive(:to_r).and_return(Rational(10))
- (Time.at(100) + obj).should == Time.at(110)
- end
-
- it "raises TypeError on argument that can't be coerced into Rational" do
- lambda { Time.now + Object.new }.should raise_error(TypeError)
- lambda { Time.now + "stuff" }.should raise_error(TypeError)
- end
-
- it "returns a UTC time if self is UTC" do
- (Time.utc(2012) + 10).utc?.should == true
- end
-
- it "returns a non-UTC time if self is non-UTC" do
- (Time.local(2012) + 10).utc?.should == false
- end
-
- it "returns a time with the same fixed offset as self" do
- (Time.new(2012, 1, 1, 0, 0, 0, 3600) + 10).utc_offset.should == 3600
- end
-
- it "does not return a subclass instance" do
- c = Class.new(Time)
- x = c.now + 1
- x.should be_an_instance_of(Time)
- end
-
- it "raises TypeError on Time argument" do
- lambda { Time.now + Time.now }.should raise_error(TypeError)
- end
-
- it "raises TypeError on nil argument" do
- lambda { Time.now + nil }.should raise_error(TypeError)
- end
-
- #see [ruby-dev:38446]
- it "tracks microseconds" do
- time = Time.at(0)
- time += Rational(123_456, 1_000_000)
- time.usec.should == 123_456
- time += Rational(654_321, 1_000_000)
- time.usec.should == 777_777
- end
-
- it "tracks nanoseconds" do
- time = Time.at(0)
- time += Rational(123_456_789, 1_000_000_000)
- time.nsec.should == 123_456_789
- time += Rational(876_543_210, 1_000_000_000)
- time.nsec.should == 999_999_999
- end
-
- it "maintains precision" do
- t = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
- t.should_not == Time.at(9)
- end
-
- it "maintains microseconds precision" do
- time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
- time.usec.should == 999_999
- end
-
- it "maintains nanoseconds precision" do
- time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
- time.nsec.should == 999_999_999
- end
-
- it "maintains subseconds precision" do
- time = Time.at(0) + Rational(8_999_999_999_999_999, 1_000_000_000_000_000)
- time.subsec.should == Rational(999_999_999_999_999, 1_000_000_000_000_000)
- end
-end