TerribleDev/ruby_koans
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Remove koans directory from source control.

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Patches were submitted against the koans directory rather than the
src directory. This lead to potential problems when we regenerate the
koans directory from scratch, leading to the very real possibility
that changes could be lost.

Please make all changes to the src directory and use "rake gen" (or
"rake regen") to generate the koans directory as needed.
This commit is contained in:
Jim Weirich
2011-12-04 02:47:24 -05:00
parent a83000b4d3
commit 2ddd929473
45 changed files with 0 additions and 3855 deletions
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190
koans/about_classes.rb
View File

@@ -1,190 +0,0 @@
require File.expand_path(File.dirname(__FILE__) + '/edgecase')
class AboutClasses < EdgeCase::Koan
class Dog
end
def test_instances_of_classes_can_be_created_with_new
fido = Dog.new
assert_equal __, fido.class
end
# ------------------------------------------------------------------
class Dog2
def set_name(a_name)
@name = a_name
end
end
def test_instance_variables_can_be_set_by_assigning_to_them
fido = Dog2.new
assert_equal __, fido.instance_variables
fido.set_name("Fido")
assert_equal __, fido.instance_variables
end
def test_instance_variables_cannot_be_accessed_outside_the_class
fido = Dog2.new
fido.set_name("Fido")
assert_raise(___) do
fido.name
end
assert_raise(___) do
eval "fido.@name"
# NOTE: Using eval because the above line is a syntax error.
end
end
def test_you_can_politely_ask_for_instance_variable_values
fido = Dog2.new
fido.set_name("Fido")
assert_equal __, fido.instance_variable_get("@name")
end
def test_you_can_rip_the_value_out_using_instance_eval
fido = Dog2.new
fido.set_name("Fido")
assert_equal __, fido.instance_eval("@name") # string version
assert_equal __, fido.instance_eval { @name } # block version
end
# ------------------------------------------------------------------
class Dog3
def set_name(a_name)
@name = a_name
end
def name
@name
end
end
def test_you_can_create_accessor_methods_to_return_instance_variables
fido = Dog3.new
fido.set_name("Fido")
assert_equal __, fido.name
end
# ------------------------------------------------------------------
class Dog4
attr_reader :name
def set_name(a_name)
@name = a_name
end
end
def test_attr_reader_will_automatically_define_an_accessor
fido = Dog4.new
fido.set_name("Fido")
assert_equal __, fido.name
end
# ------------------------------------------------------------------
class Dog5
attr_accessor :name
end
def test_attr_accessor_will_automatically_define_both_read_and_write_accessors
fido = Dog5.new
fido.name = "Fido"
assert_equal __, fido.name
end
# ------------------------------------------------------------------
class Dog6
attr_reader :name
def initialize(initial_name)
@name = initial_name
end
end
def test_initialize_provides_initial_values_for_instance_variables
fido = Dog6.new("Fido")
assert_equal __, fido.name
end
def test_args_to_new_must_match_initialize
assert_raise(___) do
Dog6.new
end
# THINK ABOUT IT:
# Why is this so?
end
def test_different_objects_have_different_instance_variables
fido = Dog6.new("Fido")
rover = Dog6.new("Rover")
assert_equal __, rover.name != fido.name
end
# ------------------------------------------------------------------
class Dog7
attr_reader :name
def initialize(initial_name)
@name = initial_name
end
def get_self
self
end
def to_s
__
end
def inspect
"<Dog named '#{name}'>"
end
end
def test_inside_a_method_self_refers_to_the_containing_object
fido = Dog7.new("Fido")
fidos_self = fido.get_self
assert_equal __, fidos_self
end
def test_to_s_provides_a_string_version_of_the_object
fido = Dog7.new("Fido")
assert_equal __, fido.to_s
end
def test_to_s_is_used_in_string_interpolation
fido = Dog7.new("Fido")
assert_equal __, "My dog is #{fido}"
end
def test_inspect_provides_a_more_complete_string_version
fido = Dog7.new("Fido")
assert_equal __, fido.inspect
end
def test_all_objects_support_to_s_and_inspect
array = [1,2,3]
assert_equal __, array.to_s
assert_equal __, array.inspect
assert_equal __, "STRING".to_s
assert_equal __, "STRING".inspect
end
end