Contents

# frozen_string_literal: true

require File.expand_path('../../test_helper', File.dirname(__FILE__))
require './lib/coverband/collectors/delta'

class CollectorsDeltaTest < Minitest::Test
  class MockSystemCoverage < Struct.new(:results)
  end

  def mock_coverage(coverage)
    MockSystemCoverage.new(coverage)
  end

  def setup
    Coverband::Collectors::Delta.reset
  end

  test 'No previous results' do
    current_coverage = {
      'car.rb' => [0,5,1]
    }
    results = Coverband::Collectors::Delta.results(mock_coverage(current_coverage))
    assert_equal(current_coverage, results)
  end

  test 'Coverage has gone up' do
    current_coverage = {
      'car.rb' => [nil,1,5,1]
    }
    results = Coverband::Collectors::Delta.results(mock_coverage(current_coverage))
    assert_equal(current_coverage, results)

    current_coverage = {
      'car.rb' => [nil,1,7,1]
    }
    results = Coverband::Collectors::Delta.results(mock_coverage(current_coverage))
    assert_equal({'car.rb' => [nil, 0, 2, 0]}, results)
  end

  test 'New file added to coverage' do
    current_coverage = {}
    results = Coverband::Collectors::Delta.results(mock_coverage(current_coverage))
    assert_equal(current_coverage, results)

    current_coverage = {
      'dealership.rb' => [nil,1,1,nil]
    }
    results = Coverband::Collectors::Delta.results(mock_coverage(current_coverage))
    assert_equal(current_coverage, results)
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
coverband-4.2.0	test/coverband/collectors/delta_test.rb
coverband-4.2.0.rc3	test/coverband/collectors/delta_test.rb
coverband-4.2.0.rc2	test/coverband/collectors/delta_test.rb