all tasks

Task/Test-a-function/Ruby/test-a-function-1.rb

@@ -0,0 +1,26 @@
+def palindrome?(s)
+  s == s.reverse
+end
+
+require 'test/unit'
+class MyTests < Test::Unit::TestCase
+  def test_palindrome_ok
+    assert(palindrome? "aba")
+  end
+
+  def test_palindrome_nok
+    assert_equal(false, palindrome?("ab"))
+  end
+
+  def test_object_without_reverse
+    assert_raise(NoMethodError) {palindrome? 42}
+  end
+
+  def test_wrong_number_args
+    assert_raise(ArgumentError) {palindrome? "a", "b"}
+  end
+
+  def test_show_failing_test
+    assert(palindrome?("ab"), "this test case fails on purpose")
+  end
+end

Task/Test-a-function/Ruby/test-a-function-2.rb

@@ -0,0 +1,28 @@
+# palindrome.rb
+def palindrome?(s)
+  s == s.reverse
+end
+
+require 'minitest/spec'
+require 'minitest/autorun'
+describe "palindrome? function" do
+  it "returns true if arg is a palindrome" do
+    (palindrome? "aba").must_equal true
+  end
+
+  it "returns false if arg is not a palindrome" do
+    palindrome?("ab").must_equal false
+  end
+
+  it "raises NoMethodError if arg is without #reverse" do
+    proc { palindrome? 42 }.must_raise NoMethodError
+  end
+
+  it "raises ArgumentError if wrong number of args" do
+    proc { palindrome? "a", "b" }.must_raise ArgumentError
+  end
+
+  it "passes a failing test" do
+    palindrome?("ab").must_equal true, "this test case fails on purpose"
+  end
+end