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-rw-r--r--railties/test/code_statistics_calculator_test.rb332
1 files changed, 332 insertions, 0 deletions
diff --git a/railties/test/code_statistics_calculator_test.rb b/railties/test/code_statistics_calculator_test.rb
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+++ b/railties/test/code_statistics_calculator_test.rb
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+# frozen_string_literal: true
+
+require "abstract_unit"
+require "rails/code_statistics_calculator"
+
+class CodeStatisticsCalculatorTest < ActiveSupport::TestCase
+ def setup
+ @code_statistics_calculator = CodeStatisticsCalculator.new
+ end
+
+ test "calculate statistics using #add_by_file_path" do
+ code = <<-RUBY
+ def foo
+ puts 'foo'
+ # bar
+ end
+ RUBY
+
+ temp_file "stats.rb", code do |path|
+ @code_statistics_calculator.add_by_file_path 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
+ end
+ end
+
+ test "count number of methods in minitest file" do
+ code = <<-RUBY
+ class FooTest < ActionController::TestCase
+ test 'expectation' do
+ assert true
+ end
+
+ def test_expectation
+ assert true
+ end
+ end
+ RUBY
+
+ temp_file "foo_test.rb", code do |path|
+ @code_statistics_calculator.add_by_file_path path
+ assert_equal 2, @code_statistics_calculator.methods
+ end
+ 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 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
+
+ test "count rake tasks" do
+ code = <<-'CODE'
+ task :test_task do
+ puts 'foo'
+ end
+
+ CODE
+
+ @code_statistics_calculator.add_by_io(StringIO.new(code), :rake)
+
+ assert_equal 4, @code_statistics_calculator.lines
+ assert_equal 3, @code_statistics_calculator.code_lines
+ assert_equal 0, @code_statistics_calculator.classes
+ assert_equal 0, @code_statistics_calculator.methods
+ end
+
+ private
+ def temp_file(name, content)
+ dir = File.expand_path "fixtures/tmp", __dir__
+ path = "#{dir}/#{name}"
+
+ FileUtils.mkdir_p dir
+ File.write path, content
+
+ yield path
+ ensure
+ FileUtils.rm_rf path
+ end
+end
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