spec/dodecagonal_spec.rb in numb-0.21.0 vs spec/dodecagonal_spec.rb in numb-0.63.0

@@ -1,18 +1,20 @@
 describe Integer, "#dodecagonal?" do
   
   # A051624
-  DODECAGONAL = [0,1,12,33,64,105,156,217,288,369,460,561,672,793,
-                 924,1065,1216,1377,1548,1729,1920,2121,2332,2553,
-                 2784,3025,3276,3537,3808,4089,4380,4681,4992,5313,
-                 5644,5985,6336,6697,7068,7449,7840,8241,8652]
+  @seq = [0,1,12,33,64,105,156,217,288,369,460,561,672,793,
+          924,1065,1216,1377,1548,1729,1920,2121,2332,2553,
+          2784,3025,3276,3537,3808,4089,4380,4681,4992,5313,
+          5644,5985,6336,6697,7068,7449,7840,8241,8652].to_seq
 
-  it "returns true for dodecagonal numbers" do
-    DODECAGONAL.each{|n| n.should be_dodecagonal}
+  @seq.sample(10).each do |n|
+    it "returns true for dodecagonal number #{n}" do
+      n.should be_dodecagonal
+    end
   end
 
-  it "returns false for non-dodecagonal numbers" do
-    ((0..DODECAGONAL.last).to_a - DODECAGONAL).each do |n| 
+  @seq.invert.sample(10).each do |n|
+    it "returns false for non-dodecagonal number #{n}" do
       n.should_not be_dodecagonal
     end
   end
 end