Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 34 insertions, 0 deletions

diff --git a/spec/ruby/library/set/proper_subset_spec.rb b/spec/ruby/library/set/proper_subset_spec.rb
new file mode 100644
index 0000000000..1a1fa13c3c
--- /dev/null
+++ b/spec/ruby/library/set/proper_subset_spec.rb
@@ -0,0 +1,34 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'set'
+
+describe "Set#proper_subset?" do
+  before :each do
+    @set = Set[1, 2, 3, 4]
+  end
+
+  it "returns true if passed a Set that self is a proper subset of" do
+    Set[].proper_subset?(@set).should be_true
+    Set[].proper_subset?(Set[1, 2, 3]).should be_true
+    Set[].proper_subset?(Set["a", :b, ?c]).should be_true
+
+    Set[1, 2, 3].proper_subset?(@set).should be_true
+    Set[1, 3].proper_subset?(@set).should be_true
+    Set[1, 2].proper_subset?(@set).should be_true
+    Set[1].proper_subset?(@set).should be_true
+
+    Set[5].proper_subset?(@set).should be_false
+    Set[1, 5].proper_subset?(@set).should be_false
+    Set[nil].proper_subset?(@set).should be_false
+    Set["test"].proper_subset?(@set).should be_false
+
+    @set.proper_subset?(@set).should be_false
+    Set[].proper_subset?(Set[]).should be_false
+  end
+
+  it "raises an ArgumentError when passed a non-Set" do
+    lambda { Set[].proper_subset?([]) }.should raise_error(ArgumentError)
+    lambda { Set[].proper_subset?(1) }.should raise_error(ArgumentError)
+    lambda { Set[].proper_subset?("test") }.should raise_error(ArgumentError)
+    lambda { Set[].proper_subset?(Object.new) }.should raise_error(ArgumentError)
+  end
+end