summaryrefslogtreecommitdiff
path: root/spec/rubyspec/core/array/drop_spec.rb
diff options
context:
space:
mode:
Diffstat (limited to 'spec/rubyspec/core/array/drop_spec.rb')
-rw-r--r--spec/rubyspec/core/array/drop_spec.rb33
1 files changed, 33 insertions, 0 deletions
diff --git a/spec/rubyspec/core/array/drop_spec.rb b/spec/rubyspec/core/array/drop_spec.rb
new file mode 100644
index 0000000000..763b45e05a
--- /dev/null
+++ b/spec/rubyspec/core/array/drop_spec.rb
@@ -0,0 +1,33 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Array#drop" do
+ it "removes the specified number of elements from the start of the array" do
+ [1, 2, 3, 4, 5].drop(2).should == [3, 4, 5]
+ end
+
+ it "raises an ArgumentError if the number of elements specified is negative" do
+ lambda { [1, 2].drop(-3) }.should raise_error(ArgumentError)
+ end
+
+ it "returns an empty Array if all elements are dropped" do
+ [1, 2].drop(2).should == []
+ end
+
+ it "returns an empty Array when called on an empty Array" do
+ [].drop(0).should == []
+ end
+
+ it "does not remove any elements when passed zero" do
+ [1, 2].drop(0).should == [1, 2]
+ end
+
+ it "returns an empty Array if more elements than exist are dropped" do
+ [1, 2].drop(3).should == []
+ end
+
+ it 'acts correctly after a shift' do
+ ary = [nil, 1, 2]
+ ary.shift
+ ary.drop(1).should == [2]
+ end
+end