Method: Object#argv

Defined in:
lib/extensions/mspec/mspec/helpers/argv.rb

#argv(args) ⇒ Object

Convenience helper for altering ARGV. Saves the value of ARGV and sets it to args. If a block is given, yields to the block and then restores the value of ARGV. The previously saved value of ARGV can be restored by passing :restore. The former is useful in a single spec. The latter is useful in before/after actions. For example:

describe "This" do
  before do
    argv ['a', 'b']
  end

  after do
    argv :restore
  end

  it "does something" do
    # do something
  end
end

describe "That" do
  it "does something" do
    argv ['a', 'b'] do
      # do something
    end
  end
end



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# File 'lib/extensions/mspec/mspec/helpers/argv.rb', line 31

def argv(args)
  if args == :restore
    ARGV.replace(@__mspec_saved_argv__ || [])
  else
    @__mspec_saved_argv__ = ARGV
    ARGV.replace args
    if block_given?
      yield
      argv :restore
    end
  end
end