diff --git a/ruby/bob/README.md b/ruby/bob/README.md
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+# Bob
+
+Bob is a lackadaisical teenager. In conversation, his responses are very limited.
+
+Bob answers 'Sure.' if you ask him a question.
+
+He answers 'Whoa, chill out!' if you yell at him.
+
+He answers 'Calm down, I know what I'm doing!' if you yell a question at him.
+
+He says 'Fine. Be that way!' if you address him without actually saying
+anything.
+
+He answers 'Whatever.' to anything else.
+
+* * * *
+
+For installation and learning resources, refer to the
+[exercism help page](http://exercism.io/languages/ruby).
+
+For running the tests provided, you will need the Minitest gem. Open a
+terminal window and run the following command to install minitest:
+
+    gem install minitest
+
+If you would like color output, you can `require 'minitest/pride'` in
+the test file, or note the alternative instruction, below, for running
+the test file.
+
+Run the tests from the exercise directory using the following command:
+
+    ruby bob_test.rb
+
+To include color from the command line:
+
+    ruby -r minitest/pride bob_test.rb
+
+
+## Source
+
+Inspired by the 'Deaf Grandma' exercise in Chris Pine's Learn to Program tutorial. [http://pine.fm/LearnToProgram/?Chapter=06](http://pine.fm/LearnToProgram/?Chapter=06)
+
+## Submitting Incomplete Solutions
+It's possible to submit an incomplete solution so you can see how others have completed the exercise.
diff --git a/ruby/bob/bob.rb b/ruby/bob/bob.rb
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+++ b/ruby/bob/bob.rb
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+class Bob
+  def self.hey(remark)
+    remark.gsub!(/[[:space:]]+/, '')
+    if remark == ''
+      'Fine. Be that way!'
+    elsif remark.upcase == remark and remark =~ /[A-Za-z]+/
+      if remark[-1] == '?'
+        "Calm down, I know what I'm doing!"
+      else
+        'Whoa, chill out!'
+      end
+    elsif remark[-1] == '?'
+      'Sure.'
+    else
+      'Whatever.'
+    end
+  end
+end
diff --git a/ruby/bob/bob_test.rb b/ruby/bob/bob_test.rb
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+++ b/ruby/bob/bob_test.rb
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+require 'minitest/autorun'
+require_relative 'bob'
+
+# Common test data version: 1.3.0 a64ef34
+class BobTest < Minitest::Test
+  def test_stating_something
+    # skip
+    remark = "Tom-ay-to, tom-aaaah-to."
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "Tom-ay-to, tom-aaaah-to.", and..}
+  end
+
+  def test_shouting
+    # skip
+    remark = "WATCH OUT!"
+    assert_equal "Whoa, chill out!", Bob.hey(remark), %q{Bob hears "WATCH OUT!", and..}
+  end
+
+  def test_shouting_gibberish
+    # skip
+    remark = "FCECDFCAAB"
+    assert_equal "Whoa, chill out!", Bob.hey(remark), %q{Bob hears "FCECDFCAAB", and..}
+  end
+
+  def test_asking_a_question
+    # skip
+    remark = "Does this cryogenic chamber make me look fat?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "Does this cryogenic chamber make me look fat?", and..}
+  end
+
+  def test_asking_a_numeric_question
+    # skip
+    remark = "You are, what, like 15?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "You are, what, like 15?", and..}
+  end
+
+  def test_asking_gibberish
+    # skip
+    remark = "fffbbcbeab?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "fffbbcbeab?", and..}
+  end
+
+  def test_talking_forcefully
+    # skip
+    remark = "Let's go make out behind the gym!"
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "Let's go make out behind the gym!", and..}
+  end
+
+  def test_using_acronyms_in_regular_speech
+    # skip
+    remark = "It's OK if you don't want to go to the DMV."
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "It's OK if you don't want to go to the DMV.", and..}
+  end
+
+  def test_forceful_question
+    # skip
+    remark = "WHAT THE HELL WERE YOU THINKING?"
+    assert_equal "Calm down, I know what I'm doing!", Bob.hey(remark), %q{Bob hears "WHAT THE HELL WERE YOU THINKING?", and..}
+  end
+
+  def test_shouting_numbers
+    # skip
+    remark = "1, 2, 3 GO!"
+    assert_equal "Whoa, chill out!", Bob.hey(remark), %q{Bob hears "1, 2, 3 GO!", and..}
+  end
+
+  def test_no_letters
+    # skip
+    remark = "1, 2, 3"
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "1, 2, 3", and..}
+  end
+
+  def test_question_with_no_letters
+    # skip
+    remark = "4?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "4?", and..}
+  end
+
+  def test_shouting_with_special_characters
+    # skip
+    remark = "ZOMG THE %^*@\#$(*^ ZOMBIES ARE COMING!!11!!1!"
+    assert_equal "Whoa, chill out!", Bob.hey(remark), %q{Bob hears "ZOMG THE %^*@\#$(*^ ZOMBIES ARE COMING!!11!!1!", and..}
+  end
+
+  def test_shouting_with_no_exclamation_mark
+    # skip
+    remark = "I HATE THE DMV"
+    assert_equal "Whoa, chill out!", Bob.hey(remark), %q{Bob hears "I HATE THE DMV", and..}
+  end
+
+  def test_statement_containing_question_mark
+    # skip
+    remark = "Ending with ? means a question."
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "Ending with ? means a question.", and..}
+  end
+
+  def test_non_letters_with_question
+    # skip
+    remark = ":) ?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears ":) ?", and..}
+  end
+
+  def test_prattling_on
+    # skip
+    remark = "Wait! Hang on. Are you going to be OK?"
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "Wait! Hang on. Are you going to be OK?", and..}
+  end
+
+  def test_silence
+    # skip
+    remark = ""
+    assert_equal "Fine. Be that way!", Bob.hey(remark), %q{Bob hears "", and..}
+  end
+
+  def test_prolonged_silence
+    # skip
+    remark = "          "
+    assert_equal "Fine. Be that way!", Bob.hey(remark), %q{Bob hears "          ", and..}
+  end
+
+  def test_alternate_silence
+    # skip
+    remark = "\t\t\t\t\t\t\t\t\t\t"
+    assert_equal "Fine. Be that way!", Bob.hey(remark), %q{Bob hears "\t\t\t\t\t\t\t\t\t\t", and..}
+  end
+
+  def test_multiple_line_question
+    # skip
+    remark = "\nDoes this cryogenic chamber make me look fat?\nno"
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "\nDoes this cryogenic chamber make me look fat?\nno", and..}
+  end
+
+  def test_starting_with_whitespace
+    # skip
+    remark = "         hmmmmmmm..."
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "         hmmmmmmm...", and..}
+  end
+
+  def test_ending_with_whitespace
+    # skip
+    remark = "Okay if like my  spacebar  quite a bit?   "
+    assert_equal "Sure.", Bob.hey(remark), %q{Bob hears "Okay if like my  spacebar  quite a bit?   ", and..}
+  end
+
+  def test_other_whitespace
+    # skip
+    remark = "\n\r \t"
+    assert_equal "Fine. Be that way!", Bob.hey(remark), %q{Bob hears "\n\r \t", and..}
+  end
+
+  def test_non_question_ending_with_whitespace
+    # skip
+    remark = "This is a statement ending with whitespace      "
+    assert_equal "Whatever.", Bob.hey(remark), %q{Bob hears "This is a statement ending with whitespace      ", and..}
+  end
+end