Update to ruby/spec@7f69c86

1 files changed, 23 insertions, 10 deletions

diff --git a/spec/ruby/core/queue/initialize_spec.rb b/spec/ruby/core/queue/initialize_spec.rb
index c45abcd29d..c6c1ae63c5 100644
--- a/spec/ruby/core/queue/initialize_spec.rb
+++ b/spec/ruby/core/queue/initialize_spec.rb
@@ -22,16 +22,29 @@ describe "Queue#initialize" do
       q.should.empty?
     end
 
-    it "uses #to_a on the provided Enumerable" do
-      enumerable = MockObject.new('mock-enumerable')
-      enumerable.should_receive(:to_a).and_return([1, 2, 3])
-      q = Queue.new(enumerable)
-      q.size.should == 3
-      q.should_not.empty?
-      q.pop.should == 1
-      q.pop.should == 2
-      q.pop.should == 3
-      q.should.empty?
+    describe "converts the given argument to an Array using #to_a" do
+      it "uses #to_a on the provided Enumerable" do
+        enumerable = MockObject.new('mock-enumerable')
+        enumerable.should_receive(:to_a).and_return([1, 2, 3])
+        q = Queue.new(enumerable)
+        q.size.should == 3
+        q.should_not.empty?
+        q.pop.should == 1
+        q.pop.should == 2
+        q.pop.should == 3
+        q.should.empty?
+      end
+
+      it "raises a TypeError if the given argument can't be converted to an Array" do
+        -> { Queue.new(42) }.should raise_error(TypeError)
+        -> { Queue.new(:abc) }.should raise_error(TypeError)
+      end
+
+      it "raises a NoMethodError if the given argument raises a NoMethodError during type coercion to an Array" do
+        enumerable = MockObject.new('mock-enumerable')
+        enumerable.should_receive(:to_a).and_raise(NoMethodError)
+        -> { Queue.new(enumerable) }.should raise_error(NoMethodError)
+      end
     end
 
     it "raises TypeError if the provided Enumerable does not respond to #to_a" do