Module: IntegrationTestsRails::Istanbul::Instrumenter

Defined in:
lib/integration_tests_rails/istanbul/instrumenter.rb

Overview

Instruments JavaScript files for code coverage using Istanbul.

Class Method Summary collapse

Class Method Details

.instrument_all ⇒ Object 



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
# File 'lib/integration_tests_rails/istanbul/instrumenter.rb', line 13

def instrument_all
  config = IntegrationTestsRails.configuration
  output_path = config.output_path

  # Clean output directory
  FileUtils.rm_rf(output_path)
  FileUtils.mkdir_p(output_path)

  # Find all JS files
  js_files = Dir.glob(config.source_path.join('**/*.js'))
  Util.log "Instrumenting #{js_files.length} JavaScript files..."

  js_files.each do |file|
    instrument_file(file)
  end

  Util.log '✓ Instrumented files created'
  Util.log '=== Istanbul Instrumentation Complete ==='
end

.instrument_file(file) ⇒ Object 



33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/integration_tests_rails/istanbul/instrumenter.rb', line 33

def instrument_file(file)
  config = IntegrationTestsRails.configuration
  relative_path = Pathname.new(file).relative_path_from(config.source_path)
  output_file = config.output_path.join(relative_path)

  FileUtils.mkdir_p(output_file.dirname)

  code = File.read(file)
  instrumented = instrument_code_with_istanbul(code, file)

  write_instrumented_file(output_file, instrumented, relative_path)
end