Remove koans directory from source control.

[ruby_koans.git] / koans / about_hashes.rb

diff --git a/koans/about_hashes.rb b/koans/about_hashes.rb
deleted file mode 100644 (file)
index 511e3c1..0000000
--- a/koans/about_hashes.rb
+++ /dev/null
@@ -1,116 +0,0 @@
-require File.expand_path(File.dirname(__FILE__) + '/edgecase')
-
-class AboutHashes < EdgeCase::Koan
-  def test_creating_hashes
-    empty_hash = Hash.new
-    assert_equal __, empty_hash.class
-    assert_equal({}, empty_hash)
-    assert_equal __, empty_hash.size
-  end
-
-  def test_hash_literals
-    hash = { :one => "uno", :two => "dos" }
-    assert_equal __, hash.size
-  end
-
-  def test_accessing_hashes
-    hash = { :one => "uno", :two => "dos" }
-    assert_equal __, hash[:one]
-    assert_equal __, hash[:two]
-    assert_equal __, hash[:doesnt_exist]
-  end
-
-  def test_accessing_hashes_with_fetch
-    hash = { :one => "uno" }
-    assert_equal "uno", hash.fetch(:one)
-    assert_raise(___) do
-      hash.fetch(:doesnt_exist)
-    end
-
-    # THINK ABOUT IT:
-    #
-    # Why might you want to use #fetch instead of #[] when accessing hash keys?
-  end
-
-  def test_changing_hashes
-    hash = { :one => "uno", :two => "dos" }
-    hash[:one] = "eins"
-
-    expected = { :one => __, :two => "dos" }
-    assert_equal __, expected == hash
-
-    # Bonus Question: Why was "expected" broken out into a variable
-    # rather than used as a literal?
-  end
-
-  def test_hash_is_unordered
-    hash1 = { :one => "uno", :two => "dos" }
-    hash2 = { :two => "dos", :one => "uno" }
-
-    assert_equal __, hash1 == hash2
-  end
-
-  def test_hash_keys
-    hash = { :one => "uno", :two => "dos" }
-    assert_equal __, hash.keys.size
-    assert_equal __, hash.keys.include?(:one)
-    assert_equal __, hash.keys.include?(:two)
-    assert_equal __, hash.keys.class
-  end
-
-  def test_hash_values
-    hash = { :one => "uno", :two => "dos" }
-    assert_equal __, hash.values.size
-    assert_equal __, hash.values.include?("uno")
-    assert_equal __, hash.values.include?("dos")
-    assert_equal __, hash.values.class
-  end
-
-  def test_combining_hashes
-    hash = { "jim" => 53, "amy" => 20, "dan" => 23 }
-    new_hash = hash.merge({ "jim" => 54, "jenny" => 26 })
-
-    assert_equal __, hash != new_hash
-
-    expected = { "jim" => __, "amy" => 20, "dan" => 23, "jenny" => __ }
-    assert_equal __, expected == new_hash
-  end
-
-  def test_default_value
-    hash1 = Hash.new
-    hash1[:one] = 1
-
-    assert_equal __, hash1[:one]
-    assert_equal __, hash1[:two]
-
-    hash2 = Hash.new("dos")
-    hash2[:one] = 1
-
-    assert_equal __, hash2[:one]
-    assert_equal __, hash2[:two]
-  end
-
-  def test_default_value_is_the_same_object
-    hash = Hash.new([])
-
-    hash[:one] << "uno"
-    hash[:two] << "dos"
-
-    assert_equal __, hash[:one]
-    assert_equal __, hash[:two]
-    assert_equal __, hash[:three]
-
-    assert_equal __, hash[:one].object_id == hash[:two].object_id
-  end
-
-  def test_default_value_with_block
-    hash = Hash.new {|hash, key| hash[key] = [] }
-
-    hash[:one] << "uno"
-    hash[:two] << "dos"
-
-    assert_equal __, hash[:one]
-    assert_equal __, hash[:two]
-    assert_equal __, hash[:three]
-  end
-end