Test stubs

gistfile1.rb

# Creates test stubs for logic in methods

require 'rspec'
require File.expand_path('../../test_stubs.rb', __FILE__)

describe TestStubs do

  let(:sut) { TestStubs.new(@code) }

  describe "#generate" do
    it "creates test suite for empty class" do
      @code = "class Test; end"
      sut.generate.should eql(<<-TESTSUITE.chomp)
class TestTests < Test::Unit::TestCase
end
      TESTSUITE
    end
    it "creates test suite and test for class with empty method" do
      @code = "class Test; def method_name; end; end"
      sut.generate.should eql(<<-TESTSUITE.chomp)
class TestTests < Test::Unit::TestCase
  def test_method_name
  end
end
      TESTSUITE
    end
    it "creates test suite and tests with conditional" do
      @code = "class Test; def method_name; return value if nil; end; end"
      sut.generate.should eql(<<-TESTSUITE.chomp)
class TestTests < Test::Unit::TestCase
  def test_method_name_returns_value_if_nil
  end
end
      TESTSUITE
    end
    it "creates test suite and tests with if and else" do
      @code = "class Test; def method_name; if condition; 5; else; 10; end; end; end"
      sut.generate.should eql(<<-TESTSUITE.chomp)
class TestTests < Test::Unit::TestCase
  def test_method_name_returns_5_if_condition
  end
  def test_method_name_returns_10_if_not_condition
  end
end
      TESTSUITE
    end
    it "creates test suite and test with nested conditional" do
      @code = <<-CODE
class Test
  def method_name
    if condition
      if condition2
        1
      else
        2
      end
    else
      3
    end
  end
end
      CODE
      sut.generate.should eql(<<-TESTSUITE.chomp)
class TestTests < Test::Unit::TestCase
  def test_method_name_returns_1_if_condition_and_condition2
  end
  def test_method_name_returns_2_if_condition_and_not_condition2
  end
  def test_method_name_returns_3_if_not_condition
  end
end
      TESTSUITE
    end
  end
end