Added specs for Guard::Watcher, allow enumerables in 'watch' blocks.
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@ -9,29 +9,37 @@ module Guard
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def self.match_files(guard, files)
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guard.watchers.inject([]) do |paths, watcher|
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files.each do |file|
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if matches = file.match(watcher.pattern)
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if matches = watcher.match_file?(file)
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if watcher.action
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begin
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if watcher.action.arity == 1
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result = watcher.action.call(matches)
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else
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result = watcher.action.call
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end
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rescue
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UI.info "Problem with watch action"
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end
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paths << result if result.is_a?(String) && result != ''
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result = watcher.call_action(matches)
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paths << Array(result) if result.respond_to?(:empty?) && !result.empty?
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else
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paths << matches[0]
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end
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end
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end
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paths
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paths.flatten.map { |p| p.to_s }
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end
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end
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def self.match_files?(guards, files)
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guards.any? { |guard| !match_files(guard, files).empty? }
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guards.any? do |guard|
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guard.watchers.any? do |watcher|
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files.any? { |file| watcher.match_file?(file) }
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end
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end
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end
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def match_file?(file)
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file.match(@pattern)
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end
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def call_action(matches)
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begin
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@action.arity > 0 ? @action.call(matches) : @action.call
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rescue
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UI.error "Problem with watch action!"
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end
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end
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end
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135
spec/guard/watcher_spec.rb
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135
spec/guard/watcher_spec.rb
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@ -0,0 +1,135 @@
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require 'spec_helper'
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require 'guard/guard'
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describe Guard::Watcher do
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describe "pattern" do
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it "should be required" do
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expect { Guard::Watcher.new }.to raise_error(ArgumentError)
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end
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it "should be set" do
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Guard::Watcher.new(%|spec_helper\.rb|).pattern.should == %|spec_helper\.rb|
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end
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end
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describe "action" do
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it "should set action to nil by default" do
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Guard::Watcher.new(%|spec_helper\.rb|).action.should be_nil
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end
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it "should set action with a block" do
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action = lambda { |m| "spec/#{m[1]}_spec.rb" }
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Guard::Watcher.new(%|^lib/(.*).rb|, action).action.should == action
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end
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end
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describe ".match_files" do
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before(:all) { @guard = Guard::Guard.new }
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describe "a watcher's with no action" do
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before(:all) { @guard.watchers = [Guard::Watcher.new(%|.*_spec\.rb|)] }
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it "should return paths as they came" do
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Guard::Watcher.match_files(@guard, ['guard_rocks_spec.rb']).should == ['guard_rocks_spec.rb']
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end
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end
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describe "a watcher's action with an arity equal to 0" do
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before(:all) do
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@guard.watchers = [
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Guard::Watcher.new(%|spec_helper\.rb|, lambda { 'spec' }),
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Guard::Watcher.new(%|addition\.rb|, lambda { 1 + 1 }),
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Guard::Watcher.new(%|hash\.rb|, lambda { Hash[:foo, 'bar'] }),
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Guard::Watcher.new(%|array\.rb|, lambda { ['foo', 'bar'] }),
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Guard::Watcher.new(%|blank\.rb|, lambda { '' }),
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Guard::Watcher.new(%|uptime\.rb|, lambda { `uptime > /dev/null` })
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]
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end
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it "should return paths specified in the watcher's action" do
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Guard::Watcher.match_files(@guard, ['spec_helper.rb']).should == ['spec']
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end
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it "should return nothing if action.call doesn't respond_to :empty?" do
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Guard::Watcher.match_files(@guard, ['addition.rb']).should == []
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end
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it "should return action.call.to_a if result respond_to :empty?" do
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Guard::Watcher.match_files(@guard, ['hash.rb']).should == ['foo', 'bar']
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end
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it "should return files including files from array if paths are an array" do
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Guard::Watcher.match_files(@guard, ['spec_helper.rb', 'array.rb']).should == ['spec', 'foo', 'bar']
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end
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it "should return nothing if action.call return ''" do
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Guard::Watcher.match_files(@guard, ['blank.rb']).should == []
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end
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it "should return nothing if action.call return nil" do
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Guard::Watcher.match_files(@guard, ['uptime.rb']).should == []
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end
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end
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describe "a watcher's action with an arity equal to 1" do
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before(:all) do
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@guard.watchers = [
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Guard::Watcher.new(%|lib/(.*)\.rb|, lambda { |m| "spec/#{m[1]}_spec.rb" }),
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Guard::Watcher.new(%|addition(.*)\.rb|, lambda { |m| 1 + 1 }),
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Guard::Watcher.new(%|hash\.rb|, lambda { Hash[:foo, 'bar'] }),
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Guard::Watcher.new(%|array(.*)\.rb|, lambda { |m| ['foo', 'bar'] }),
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Guard::Watcher.new(%|blank(.*)\.rb|, lambda { |m| '' }),
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Guard::Watcher.new(%|uptime(.*)\.rb|, lambda { |m| `uptime > /dev/null` })
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]
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end
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it "should return paths after watcher's action has been called against them" do
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Guard::Watcher.match_files(@guard, ['lib/my_wonderful_lib.rb']).should == ['spec/my_wonderful_lib_spec.rb']
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end
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it "should return nothing if action.call doesn't respond_to :empty?" do
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Guard::Watcher.match_files(@guard, ['addition.rb']).should == []
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end
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it "should return action.call.to_a if result respond_to :empty?" do
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Guard::Watcher.match_files(@guard, ['hash.rb']).should == ['foo', 'bar']
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end
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it "should return files including files from array if paths are an array" do
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Guard::Watcher.match_files(@guard, ['lib/my_wonderful_lib.rb', 'array.rb']).should == ['spec/my_wonderful_lib_spec.rb', 'foo', 'bar']
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end
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it "should return nothing if action.call return ''" do
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Guard::Watcher.match_files(@guard, ['blank.rb']).should == []
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end
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it "should return nothing if action.call return nil" do
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Guard::Watcher.match_files(@guard, ['uptime.rb']).should == []
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end
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end
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describe "an exception is raised" do
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before(:all) { @guard.watchers = [Guard::Watcher.new('evil.rb', lambda { raise "EVIL" })] }
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it "should display an error" do
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Guard::UI.should_receive(:error).with("Problem with watch action!")
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Guard::Watcher.match_files(@guard, ['evil.rb'])
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end
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end
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end
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describe ".match_files?" do
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before(:all) do
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@guard1 = Guard::Guard.new([Guard::Watcher.new(%|.*_spec\.rb|)])
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@guard2 = Guard::Guard.new([Guard::Watcher.new(%|spec_helper\.rb|, 'spec')])
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@guards = [@guard1, @guard2]
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end
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describe "with at least on watcher that match a file given" do
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specify { Guard::Watcher.match_files?(@guards, ['lib/my_wonderful_lib.rb', 'guard_rocks_spec.rb']).should be_true }
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end
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describe "with no watcher matching a file given" do
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specify { Guard::Watcher.match_files?(@guards, ['lib/my_wonderful_lib.rb']).should be_false }
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end
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end
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describe "#match_file?" do
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subject { Guard::Watcher.new(%|.*_spec\.rb|) }
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specify { subject.match_file?('lib/my_wonderful_lib.rb').should be_false }
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specify { subject.match_file?('guard_rocks_spec.rb').should be_true }
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end
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end
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