From 2d9cd7ab8fccd3470e07618f09293cc4d9ca4451 Mon Sep 17 00:00:00 2001
From: Rahul Bajaj <rahulrb0509@gmail.com>
Date: Thu, 17 May 2018 16:55:16 +0530
Subject: [PATCH] Add tests for fibonacci series

---
 .../fibonacci sequece/fibonacci.rb            |  7 +++++
 .../fibonacci sequece/test_fibonacci.rb       | 29 +++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 Test Driven Development in Ruby/fibonacci sequece/fibonacci.rb
 create mode 100644 Test Driven Development in Ruby/fibonacci sequece/test_fibonacci.rb

diff --git a/Test Driven Development in Ruby/fibonacci sequece/fibonacci.rb b/Test Driven Development in Ruby/fibonacci sequece/fibonacci.rb
new file mode 100644
index 0000000..dc27421
--- /dev/null
+++ b/Test Driven Development in Ruby/fibonacci sequece/fibonacci.rb	
@@ -0,0 +1,7 @@
+class Fibonacci
+  def self.of(n)
+    return 0 if n == 0
+    return 1 if n <= 2
+    return of(n - 1) + of(n - 2)
+  end
+end
\ No newline at end of file
diff --git a/Test Driven Development in Ruby/fibonacci sequece/test_fibonacci.rb b/Test Driven Development in Ruby/fibonacci sequece/test_fibonacci.rb
new file mode 100644
index 0000000..5052641
--- /dev/null
+++ b/Test Driven Development in Ruby/fibonacci sequece/test_fibonacci.rb	
@@ -0,0 +1,29 @@
+require 'minitest/autorun'
+require_relative 'fibonacci'
+
+class TestFibonacci < Minitest::Test
+  def test_fibonacci_of_zero_is_zero
+    result = Fibonacci.of(0)
+    assert_equal 0, result
+  end
+
+  def test_fibonacci_of_one_is_one
+    result = Fibonacci.of(1)
+    assert_equal 1, result
+  end
+
+  def test_fibonacci_of_two_is_one
+    result = Fibonacci.of(2)
+    assert_equal 1, result
+  end
+
+  def test_fibonacci_of_three_is_two
+    result = Fibonacci.of(3)
+    assert_equal 2, result
+  end
+
+  def test_fibonacci_of_ten_is_fifty_five
+    result = Fibonacci.of(10)
+    assert_equal 55, result
+  end
+end