Class: Protest::Utils::BacktraceFilter

Inherits:
Object
  • Object
show all
Defined in:
lib/protest/utils/backtrace_filter.rb

Overview

Small utility object to filter an error’s backtrace and remove any mention of Protest’s own files.

Constant Summary collapse

ESCAPE_PATHS = 
[
  # Path to the library's 'lib' dir.
  /^#{Regexp.escape(File.dirname(File.dirname(File.dirname(File.expand_path(__FILE__)))))}/,

  # Users certainly don't care about what test loader is being used
  %r[lib/rake/rake_test_loader.rb], %r[bin/testrb]
]

Instance Method Summary collapse

Instance Method Details

#filter_backtrace(backtrace, prefix = nil) ⇒ Object

Filter the backtrace, removing any reference to files located in BASE_PATH.



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# File 'lib/protest/utils/backtrace_filter.rb', line 16

def filter_backtrace(backtrace, prefix=nil)
  paths = ESCAPE_PATHS + [prefix].compact
  backtrace.reject do |line|
    file = line.split(":").first
    paths.any? {|path| File.expand_path(file) =~ path }
  end
end