Class: RSpec::Core::FilterManager

Inherits:
Object
  • Object
show all
Defined in:
lib/rspec/core/filter_manager.rb

Overview

Manages the filtering of examples and groups by matching tags declared on the command line or options files, or filters declared via RSpec.configure, with hash key/values submitted within example group and/or example declarations. For example, given this declaration:

describe Thing, :awesome => true do
  it "does something" do
    # ...
  end
end

That group (or any other with :awesome => true) would be filtered in with any of the following commands:

rspec --tag awesome:true
rspec --tag awesome
rspec -t awesome:true
rspec -t awesome

Prefixing the tag names with ~ negates the tags, thus excluding this group with any of:

rspec --tag ~awesome:true
rspec --tag ~awesome
rspec -t ~awesome:true
rspec -t ~awesome

Options files and command line overrides

Tag declarations can be stored in .rspec, ~/.rspec, or a custom options file. This is useful for storing defaults. For example, let's say you've got some slow specs that you want to suppress most of the time. You can tag them like this:

describe Something, :slow => true do

And then store this in .rspec:

--tag ~slow:true

Now when you run rspec, that group will be excluded.

Overriding

Of course, you probably want to run them sometimes, so you can override this tag on the command line like this:

rspec --tag slow:true

RSpec.configure

You can also store default tags with RSpec.configure. We use tag on the command line (and in options files like .rspec), but for historical reasons we use the term filter in `RSpec.configure:

RSpec.configure do |c|
  c.filter_run_including :foo => :bar
  c.filter_run_excluding :foo => :bar
end

These declarations can also be overridden from the command line.

See Also:

Defined Under Namespace

Modules: BackwardCompatibility, Describable

Constant Summary collapse

DEFAULT_EXCLUSIONS = 
{
  :if     => lambda { |value| !value },
  :unless => lambda { |value| value }
}
STANDALONE_FILTERS = 
[:locations, :line_numbers, :full_description]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FilterManager

Returns a new instance of FilterManager.



117
118
119
120
121
 
# File 'lib/rspec/core/filter_manager.rb', line 117

def initialize
  @exclusions = DEFAULT_EXCLUSIONS.dup.extend(Describable)
  @inclusions = {}.extend(Describable)
  extend(BackwardCompatibility)
end

Instance Attribute Details

#exclusions ⇒ Object (readonly)

Returns the value of attribute exclusions.



115
116
117
 
# File 'lib/rspec/core/filter_manager.rb', line 115

def exclusions
  @exclusions
end

#inclusions ⇒ Object (readonly)

Returns the value of attribute inclusions.



115
116
117
 
# File 'lib/rspec/core/filter_manager.rb', line 115

def inclusions
  @inclusions
end

Instance Method Details

#add_location(file_path, line_numbers) ⇒ Object 



123
124
125
126
127
128
129
130
131
 
# File 'lib/rspec/core/filter_manager.rb', line 123

def add_location(file_path, line_numbers)
  # locations is a hash of expanded paths to arrays of line
  # numbers to match against. e.g.
  #   { "path/to/file.rb" => [37, 42] }
  locations = @inclusions.delete(:locations) || Hash.new {|h,k| h[k] = []}
  locations[File.expand_path(file_path)].push(*line_numbers)
  @inclusions.replace(:locations => locations)
  @exclusions.clear
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


133
134
135
 
# File 'lib/rspec/core/filter_manager.rb', line 133

def empty?
  inclusions.empty? && exclusions.empty_without_conditional_filters?
end

#exclude(*args) ⇒ Object 



141
142
143
 
# File 'lib/rspec/core/filter_manager.rb', line 141

def exclude(*args)
  merge(@exclusions, @inclusions, *args)
end

#exclude!(*args) ⇒ Object 



145
146
147
 
# File 'lib/rspec/core/filter_manager.rb', line 145

def exclude!(*args)
  replace(@exclusions, @inclusions, *args)
end

#exclude?(example) ⇒ Boolean

Returns:

  • (Boolean) 


153
154
155
 
# File 'lib/rspec/core/filter_manager.rb', line 153

def exclude?(example)
  @exclusions.empty? ? false : example.any_apply?(@exclusions)
end

#exclude_with_low_priority(*args) ⇒ Object 



149
150
151
 
# File 'lib/rspec/core/filter_manager.rb', line 149

def exclude_with_low_priority(*args)
  reverse_merge(@exclusions, @inclusions, *args)
end

#include(*args) ⇒ Object 



157
158
159
 
# File 'lib/rspec/core/filter_manager.rb', line 157

def include(*args)
  unless_standalone(*args) { merge(@inclusions, @exclusions, *args) }
end

#include!(*args) ⇒ Object 



161
162
163
 
# File 'lib/rspec/core/filter_manager.rb', line 161

def include!(*args)
  unless_standalone(*args) { replace(@inclusions, @exclusions, *args) }
end

#include?(example) ⇒ Boolean

Returns:

  • (Boolean) 


169
170
171
 
# File 'lib/rspec/core/filter_manager.rb', line 169

def include?(example)
  @inclusions.empty? ? true : example.any_apply?(@inclusions)
end

#include_with_low_priority(*args) ⇒ Object 



165
166
167
 
# File 'lib/rspec/core/filter_manager.rb', line 165

def include_with_low_priority(*args)
  unless_standalone(*args) { reverse_merge(@inclusions, @exclusions, *args) }
end

#prune(examples) ⇒ Object 



137
138
139
 
# File 'lib/rspec/core/filter_manager.rb', line 137

def prune(examples)
  examples.select {|e| !exclude?(e) && include?(e)}
end