Adding unit tests

.bundle/config

@@ -0,0 +1 @@
+--- {}

.replit

@@ -0,0 +1,6 @@
+
+
+run="git status \n git checkout -b adding-unit-tests \n git add . \n git commit -m 'adding some unit tests' \n git push origin adding-unit-tests"
+
+
+

.rspec

@@ -0,0 +1,2 @@
+--color
+--require spec_helper

00_hello/hello.rb

@@ -0,0 +1,9 @@
+#write your code here
+def hello
+    return "Hello!"
+end    
+
+
+def greet(who)
+   return "Hello, #{who}!"
+end

00_hello/hello_spec.rb

@@ -6,29 +6,15 @@
 #
 #     cd 00_hello
 #
-# This directory is the starting point for this exercise. It contains a spec file and you'll be adding a ruby file to (eventually) make the specs pass.
+# This directory is the starting point for this exercise. It contains a spec file and a ruby file to (eventually) make the specs pass.
 #
 # ## Run the test
 #
 #     rake
 #
 # ## Watch it fail
 #
-# You should see an error. **Don't get scared!** Try to read it and figure out what the computer wants to tell you. Somewhere on the first line it should say something like
-#
-#     cannot load such file -- test-first-teaching/hello/hello (LoadError)
-#
-# That means that it is looking for a file called `hello.rb` and can't find it.
-#
-# ## Create hello.rb
-#
-# Open up `hello.rb` in a text editor. Save it. Run the test again.
-#
-#     rake
-#
-# ## Watch it fail
-#
-# Now you should see an error like this:
+#  you should see an error like this:
 #
 #     the hello function
 #       says hello (FAILED - 1)

00_hello/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li><a href="../02_calculator/index.html">02 Calculator</a></li>
         <li><a href="../03_simon_says/index.html">03 Simon Says</a></li>
         <li><a href="../04_pig_latin/index.html">04 Pig Latin</a></li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li><a href="../08_book_titles/index.html">08 Book Titles</a></li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li><a href="../05_book_titles/index.html">05 Book Titles</a></li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>hello</h1>
@@ -40,7 +31,7 @@ <h2>Open a terminal in this directory</h2>
 <pre><code>cd 00_hello
 </code></pre>
 
-<p>This directory is the starting point for this exercise. It contains a spec file and you'll be adding a ruby file to (eventually) make the specs pass.</p>
+<p>This directory is the starting point for this exercise. It contains a spec file and a ruby file to (eventually) make the specs pass.</p>
 
 <h2>Run the test</h2>
 
@@ -49,23 +40,7 @@ <h2>Run the test</h2>
 
 <h2>Watch it fail</h2>
 
-<p>You should see an error. <strong>Don't get scared!</strong> Try to read it and figure out what the computer wants to tell you. Somewhere on the first line it should say something like</p>
-
-<pre><code>cannot load such file -- test-first-teaching/hello/hello (LoadError)
-</code></pre>
-
-<p>That means that it is looking for a file called <code>hello.rb</code> and can't find it.</p>
-
-<h2>Create hello.rb</h2>
-
-<p>Open up <code>hello.rb</code> in a text editor. Save it. Run the test again.</p>
-
-<pre><code>rake
-</code></pre>
-
-<h2>Watch it fail</h2>
-
-<p>Now you should see an error like this:</p>
+<p>you should see an error like this:</p>
 
 <pre><code>the hello function
   says hello (FAILED - 1)

01_temperature/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li><a href="../02_calculator/index.html">02 Calculator</a></li>
         <li><a href="../03_simon_says/index.html">03 Simon Says</a></li>
         <li><a href="../04_pig_latin/index.html">04 Pig Latin</a></li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li><a href="../08_book_titles/index.html">08 Book Titles</a></li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li><a href="../05_book_titles/index.html">05 Book Titles</a></li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>temperature</h1>

01_temperature/temperature.rb

@@ -0,0 +1,8 @@
+def ftoc (temp)
+
+    return ((temp - 32) * 5/9).to_f
+end
+
+def ctof (temp)
+    return (temp.to_f * 9/5 + 32.0)
+end    

01_temperature/temperature_spec.rb

@@ -18,9 +18,7 @@
 require "temperature"
 
 describe "temperature conversion functions" do
-
   describe "#ftoc" do
-
     it "converts freezing temperature" do
       expect(ftoc(32)).to eq(0)
     end
@@ -36,11 +34,9 @@
     it "converts arbitrary temperature" do
       expect(ftoc(68)).to eq(20)
     end
-
   end
 
   describe "#ctof" do
-
     it "converts freezing temperature" do
       expect(ctof(0)).to eq(32)
     end
@@ -61,7 +57,5 @@
       # and http://en.wikipedia.org/wiki/Double_precision_floating-point_format
       # Also, try "puts 0.5 - 0.4 - 0.1" -- pretty crazy, right?
     end
-
   end
-
 end

02_calculator/calculator.rb

@@ -0,0 +1,39 @@
+def add (num1, num2)
+    return num1 + num2
+end
+
+def subtract (num1, num2)
+    return num1 - num2
+end    
+
+def sum (arr)   
+    total = 0
+    arr.each do | item |
+        total += item
+    end
+   return total
+end
+
+def multiply(arr) 
+    product = 1
+    arr.each do |item|
+        product *= item
+    end    
+    return product
+end
+
+def power(num1, num2)    
+    return num1 ** num2
+end
+
+def factorial (num)
+    fact = 1
+
+
+while num > 0 
+       fact *= num
+       num -= 1
+   end   
+
+   return fact    
+end

02_calculator/calculator_spec.rb

@@ -9,7 +9,7 @@
 #
 # you will build a simple calculator script with the following methods:
 #
-# `add` takes two parameters and adds them
+# `add` takes two parameters and adds them I
 #
 # `subtract` takes two parameters and subtracts the second from the first
 #
@@ -37,21 +37,21 @@
 
 describe "add" do
   it "adds 0 and 0" do
-    expect(add(0,0)).to eq(0)
+    expect(add(0, 0)).to eq(0)
   end
 
   it "adds 2 and 2" do
-    expect(add(2,2)).to eq(4)
+    expect(add(2, 2)).to eq(4)
   end
 
   it "adds positive numbers" do
-    expect(add(2,6)).to eq(8)
+    expect(add(2, 6)).to eq(8)
   end
 end
 
 describe "subtract" do
   it "subtracts numbers" do
-    expect(subtract(10,4)).to eq(6)
+    expect(subtract(10, 4)).to eq(6)
   end
 end
 
@@ -65,11 +65,11 @@
   end
 
   it "computes the sum of an array of two numbers" do
-    expect(sum([7,11])).to eq(18)
+    expect(sum([7, 11])).to eq(18)
   end
 
   it "computes the sum of an array of many numbers" do
-    expect(sum([1,3,5,7,9])).to eq(25)
+    expect(sum([1, 3, 5, 7, 9])).to eq(25)
   end
 end
 
@@ -78,22 +78,37 @@
 # write tests and code for the following:
 
 describe "#multiply" do
+  it "multiplies two numbers" do
+    expect(multiply([2, 3])).to eq(6)
+  end
 
-  it "multiplies two numbers"
-
-  it "multiplies several numbers"
-
+  it "multiplies several numbers" do expect(multiply([5, 3, 4, 2, 1])).to eq(120) end
 end
 
 describe "#power" do
-  it "raises one number to the power of another number"
+  it "raises one number to the power of another number" do
+    expect(power(3, 2)).to eq(9)
+  end
 end
 
 # http://en.wikipedia.org/wiki/Factorial
 describe "#factorial" do
-  it "computes the factorial of 0"
-  it "computes the factorial of 1"
-  it "computes the factorial of 2"
-  it "computes the factorial of 5"
-  it "computes the factorial of 10"
+  it "computes the factorial of 0" do
+      expect(factorial(0)).to eq(1)
+  end
+
+  it "computes the factorial of 1" do
+      expect(factorial(1)) .to eq(1)
+  end
+
+  it "computes the factorial of 2" do
+      expect(factorial(2)) .to eq(2)
+  end
+  it "computes the factorial of 5" do
+      expect(factorial(5))
+      .to eq(120)
+  end   
+  it "computes the factorial of 10" do
+      expect(factorial(10)) .to eq(3628800)
+  end  
 end

02_calculator/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li>02 Calculator</li>
         <li><a href="../03_simon_says/index.html">03 Simon Says</a></li>
         <li><a href="../04_pig_latin/index.html">04 Pig Latin</a></li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li><a href="../08_book_titles/index.html">08 Book Titles</a></li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li><a href="../05_book_titles/index.html">05 Book Titles</a></li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>calculator</h1>

03_simon_says/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li><a href="../02_calculator/index.html">02 Calculator</a></li>
         <li>03 Simon Says</li>
         <li><a href="../04_pig_latin/index.html">04 Pig Latin</a></li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li><a href="../08_book_titles/index.html">08 Book Titles</a></li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li><a href="../05_book_titles/index.html">05 Book Titles</a></li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>simon_says</h1>

03_simon_says/simon_says.rb

@@ -0,0 +1 @@
+#write your code here

04_pig_latin/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li><a href="../02_calculator/index.html">02 Calculator</a></li>
         <li><a href="../03_simon_says/index.html">03 Simon Says</a></li>
         <li>04 Pig Latin</li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li><a href="../08_book_titles/index.html">08 Book Titles</a></li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li><a href="../05_book_titles/index.html">05 Book Titles</a></li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>pig_latin</h1>

04_pig_latin/pig_latin.rb

@@ -0,0 +1 @@
+#write your code here

05_book_titles/book.rb

@@ -0,0 +1,3 @@
+class Book
+# write your code here
+end

08_book_titles/index.html → 05_book_titles/index.html

@@ -17,17 +17,8 @@ <h2><a href="../index.html">learn_ruby</a></h2>
         <li><a href="../02_calculator/index.html">02 Calculator</a></li>
         <li><a href="../03_simon_says/index.html">03 Simon Says</a></li>
         <li><a href="../04_pig_latin/index.html">04 Pig Latin</a></li>
-        <li><a href="../05_silly_blocks/index.html">05 Silly Blocks</a></li>
-        <li><a href="../06_performance_monitor/index.html">06 Performance Monitor</a></li>
-        <li><a href="../07_hello_friend/index.html">07 Hello Friend</a></li>
-        <li>08 Book Titles</li>
-        <li><a href="../09_timer/index.html">09 Timer</a></li>
-        <li><a href="../10_temperature_object/index.html">10 Temperature Object</a></li>
-        <li><a href="../11_dictionary/index.html">11 Dictionary</a></li>
-        <li><a href="../12_rpn_calculator/index.html">12 Rpn Calculator</a></li>
-        <li><a href="../13_xml_document/index.html">13 Xml Document</a></li>
-        <li><a href="../14_array_extensions/index.html">14 Array Extensions</a></li>
-        <li><a href="../15_in_words/index.html">15 In Words</a></li>
+        <li>05 Book Titles</li>
+        <li><a href="../06_timer/index.html">06 Timer</a></li>
       </ul>
     </div>
     <h1>book_titles</h1>