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Diffstat (limited to 'spec/rubyspec/library/prime/instance_spec.rb')
| -rw-r--r-- | spec/rubyspec/library/prime/instance_spec.rb | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/spec/rubyspec/library/prime/instance_spec.rb b/spec/rubyspec/library/prime/instance_spec.rb new file mode 100644 index 0000000000..64497c1b7c --- /dev/null +++ b/spec/rubyspec/library/prime/instance_spec.rb @@ -0,0 +1,21 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require 'prime' + +describe "Prime.instance" do + it "returns a object representing the set of prime numbers" do + Prime.instance.should be_kind_of(Prime) + end + + it "returns a object with no obsolete features" do + Prime.instance.should_not respond_to(:succ) + Prime.instance.should_not respond_to(:next) + end + + it "does not complain anything" do + lambda { Prime.instance }.should_not complain + end + + it "raises a ArgumentError when is called with some arguments" do + lambda { Prime.instance(1) }.should raise_error(ArgumentError) + end +end |