summaryrefslogtreecommitdiff
path: root/spec/rubyspec/core/array/shift_spec.rb
diff options
context:
space:
mode:
Diffstat (limited to 'spec/rubyspec/core/array/shift_spec.rb')
-rw-r--r--spec/rubyspec/core/array/shift_spec.rb134
1 files changed, 0 insertions, 134 deletions
diff --git a/spec/rubyspec/core/array/shift_spec.rb b/spec/rubyspec/core/array/shift_spec.rb
deleted file mode 100644
index e5d25e2050..0000000000
--- a/spec/rubyspec/core/array/shift_spec.rb
+++ /dev/null
@@ -1,134 +0,0 @@
-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/classes', __FILE__)
-
-describe "Array#shift" do
- it "removes and returns the first element" do
- a = [5, 1, 1, 5, 4]
- a.shift.should == 5
- a.should == [1, 1, 5, 4]
- a.shift.should == 1
- a.should == [1, 5, 4]
- a.shift.should == 1
- a.should == [5, 4]
- a.shift.should == 5
- a.should == [4]
- a.shift.should == 4
- a.should == []
- end
-
- it "returns nil when the array is empty" do
- [].shift.should == nil
- end
-
- it "properly handles recursive arrays" do
- empty = ArraySpecs.empty_recursive_array
- empty.shift.should == []
- empty.should == []
-
- array = ArraySpecs.recursive_array
- array.shift.should == 1
- array[0..2].should == ['two', 3.0, array]
- end
-
- it "raises a RuntimeError on a frozen array" do
- lambda { ArraySpecs.frozen_array.shift }.should raise_error(RuntimeError)
- end
- it "raises a RuntimeError on an empty frozen array" do
- lambda { ArraySpecs.empty_frozen_array.shift }.should raise_error(RuntimeError)
- end
-
- describe "passed a number n as an argument" do
- it "removes and returns an array with the first n element of the array" do
- a = [1, 2, 3, 4, 5, 6]
-
- a.shift(0).should == []
- a.should == [1, 2, 3, 4, 5, 6]
-
- a.shift(1).should == [1]
- a.should == [2, 3, 4, 5, 6]
-
- a.shift(2).should == [2, 3]
- a.should == [4, 5, 6]
-
- a.shift(3).should == [4, 5, 6]
- a.should == []
- end
-
- it "does not corrupt the array when shift without arguments is followed by shift with an argument" do
- a = [1, 2, 3, 4, 5]
-
- a.shift.should == 1
- a.shift(3).should == [2, 3, 4]
- a.should == [5]
- end
-
- it "returns a new empty array if there are no more elements" do
- a = []
- popped1 = a.shift(1)
- popped1.should == []
- a.should == []
-
- popped2 = a.shift(2)
- popped2.should == []
- a.should == []
-
- popped1.should_not equal(popped2)
- end
-
- it "returns whole elements if n exceeds size of the array" do
- a = [1, 2, 3, 4, 5]
- a.shift(6).should == [1, 2, 3, 4, 5]
- a.should == []
- end
-
- it "does not return self even when it returns whole elements" do
- a = [1, 2, 3, 4, 5]
- a.shift(5).should_not equal(a)
-
- a = [1, 2, 3, 4, 5]
- a.shift(6).should_not equal(a)
- end
-
- it "raises an ArgumentError if n is negative" do
- lambda{ [1, 2, 3].shift(-1) }.should raise_error(ArgumentError)
- end
-
- it "tries to convert n to an Integer using #to_int" do
- a = [1, 2, 3, 4]
- a.shift(2.3).should == [1, 2]
-
- obj = mock('to_int')
- obj.should_receive(:to_int).and_return(2)
- a.should == [3, 4]
- a.shift(obj).should == [3, 4]
- a.should == []
- end
-
- it "raises a TypeError when the passed n can be coerced to Integer" do
- lambda{ [1, 2].shift("cat") }.should raise_error(TypeError)
- lambda{ [1, 2].shift(nil) }.should raise_error(TypeError)
- end
-
- it "raises an ArgumentError if more arguments are passed" do
- lambda{ [1, 2].shift(1, 2) }.should raise_error(ArgumentError)
- end
-
- it "does not return subclass instances with Array subclass" do
- ArraySpecs::MyArray[1, 2, 3].shift(2).should be_an_instance_of(Array)
- end
-
- it "returns an untainted array even if the array is tainted" do
- ary = [1, 2].taint
- ary.shift(2).tainted?.should be_false
- ary.shift(0).tainted?.should be_false
- end
-
- it "keeps taint status" do
- a = [1, 2].taint
- a.shift(2)
- a.tainted?.should be_true
- a.shift(2)
- a.tainted?.should be_true
- end
- end
-end