Data update

Task/Test-a-function/Crystal/test-a-function.cr

@@ -0,0 +1,15 @@
+require "spec"
+
+describe "palindrome" do
+  it "returns true for a word that's palindromic" do
+    palindrome("racecar").should be_true
+  end
+
+  it "returns false for a word that's not palindromic" do
+    palindrome("goodbye").should be_false
+  end
+end
+
+def palindrome(s)
+  s == s.reverse
+end