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require 'abstract_unit'
require 'rails/code_statistics_calculator'
class CodeStatisticsCalculatorTest < ActiveSupport::TestCase
def setup
@code_statistics_calculator = CodeStatisticsCalculator.new
end
test 'add statistics to another using #add' do
code_statistics_calculator_1 = CodeStatisticsCalculator.new(1, 2, 3, 4)
@code_statistics_calculator.add(code_statistics_calculator_1)
assert_equal 1, @code_statistics_calculator.lines
assert_equal 2, @code_statistics_calculator.code_lines
assert_equal 3, @code_statistics_calculator.classes
assert_equal 4, @code_statistics_calculator.methods
code_statistics_calculator_2 = CodeStatisticsCalculator.new(2, 3, 4, 5)
@code_statistics_calculator.add(code_statistics_calculator_2)
assert_equal 3, @code_statistics_calculator.lines
assert_equal 5, @code_statistics_calculator.code_lines
assert_equal 7, @code_statistics_calculator.classes
assert_equal 9, @code_statistics_calculator.methods
end
test 'accumulate statistics using #add_by_io' do
code_statistics_calculator_1 = CodeStatisticsCalculator.new(1, 2, 3, 4)
@code_statistics_calculator.add(code_statistics_calculator_1)
code = <<-'CODE'
def foo
puts 'foo'
end
def bar; end
class A; end
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :rb)
assert_equal 7, @code_statistics_calculator.lines
assert_equal 7, @code_statistics_calculator.code_lines
assert_equal 4, @code_statistics_calculator.classes
assert_equal 6, @code_statistics_calculator.methods
end
test 'calculate statistics using #add_by_file_path' do
tmp_path = File.expand_path(File.join(File.dirname(__FILE__), 'fixtures', 'tmp'))
FileUtils.mkdir_p(tmp_path)
code = <<-'CODE'
def foo
puts 'foo'
# bar
end
CODE
file_path = "#{tmp_path}/stats.rb"
File.open(file_path, 'w') { |f| f.write(code) }
@code_statistics_calculator.add_by_file_path(file_path)
assert_equal 4, @code_statistics_calculator.lines
assert_equal 3, @code_statistics_calculator.code_lines
assert_equal 0, @code_statistics_calculator.classes
assert_equal 1, @code_statistics_calculator.methods
FileUtils.rm_rf(tmp_path)
end
test 'calculate number of Ruby methods' do
code = <<-'CODE'
def foo
puts 'foo'
end
def bar; end
class Foo
def bar(abc)
end
end
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :rb)
assert_equal 3, @code_statistics_calculator.methods
end
test 'calculate Ruby LOCs' do
code = <<-'CODE'
def foo
puts 'foo'
end
# def bar; end
class A < B
end
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :rb)
assert_equal 8, @code_statistics_calculator.lines
assert_equal 5, @code_statistics_calculator.code_lines
end
test 'calculate number of Ruby classes' do
code = <<-'CODE'
class Foo < Bar
def foo
puts 'foo'
end
end
class Z; end
# class A
# end
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :rb)
assert_equal 2, @code_statistics_calculator.classes
end
test 'skip Ruby comments' do
code = <<-'CODE'
=begin
class Foo
def foo
puts 'foo'
end
end
=end
# class A
# end
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :rb)
assert_equal 10, @code_statistics_calculator.lines
assert_equal 0, @code_statistics_calculator.code_lines
assert_equal 0, @code_statistics_calculator.classes
assert_equal 0, @code_statistics_calculator.methods
end
test 'calculate number of JS methods' do
code = <<-'CODE'
function foo(x, y, z) {
doX();
}
$(function () {
bar();
})
var baz = function ( x ) {
}
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :js)
assert_equal 3, @code_statistics_calculator.methods
end
test 'calculate JS LOCs' do
code = <<-'CODE'
function foo()
alert('foo');
end
// var b = 2;
var a = 1;
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :js)
assert_equal 7, @code_statistics_calculator.lines
assert_equal 4, @code_statistics_calculator.code_lines
end
test 'skip JS comments' do
code = <<-'CODE'
/*
* var f = function () {
1 / 2;
}
*/
// call();
//
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :js)
assert_equal 8, @code_statistics_calculator.lines
assert_equal 0, @code_statistics_calculator.code_lines
assert_equal 0, @code_statistics_calculator.classes
assert_equal 0, @code_statistics_calculator.methods
end
test 'calculate number of CoffeeScript methods' do
code = <<-'CODE'
square = (x) -> x * x
math =
cube: (x) -> x * square x
fill = (container, liquid = "coffee") ->
"Filling the #{container} with #{liquid}..."
$('.shopping_cart').bind 'click', (event) =>
@customer.purchase @cart
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :coffee)
assert_equal 4, @code_statistics_calculator.methods
end
test 'calculate CoffeeScript LOCs' do
code = <<-'CODE'
# Assignment:
number = 42
opposite = true
###
CoffeeScript Compiler v1.4.0
Released under the MIT License
###
# Conditions:
number = -42 if opposite
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :coffee)
assert_equal 11, @code_statistics_calculator.lines
assert_equal 3, @code_statistics_calculator.code_lines
end
test 'calculate number of CoffeeScript classes' do
code = <<-'CODE'
class Animal
constructor: (@name) ->
move: (meters) ->
alert @name + " moved #{meters}m."
class Snake extends Animal
move: ->
alert "Slithering..."
super 5
# class Horse
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :coffee)
assert_equal 2, @code_statistics_calculator.classes
end
test 'skip CoffeeScript comments' do
code = <<-'CODE'
###
class Animal
constructor: (@name) ->
move: (meters) ->
alert @name + " moved #{meters}m."
###
# class Horse
alert 'hello'
CODE
@code_statistics_calculator.add_by_io(StringIO.new(code), :coffee)
assert_equal 10, @code_statistics_calculator.lines
assert_equal 1, @code_statistics_calculator.code_lines
assert_equal 0, @code_statistics_calculator.classes
assert_equal 0, @code_statistics_calculator.methods
end
end
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