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watcher_spec.rb
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watcher_spec.rb
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require 'spec_helper'
require 'guard/guard'
describe Guard::Watcher do
describe "#initialize" do
it "requires a pattern parameter" do
expect { Guard::Watcher.new }.to raise_error(ArgumentError)
end
context "with a pattern parameter" do
context "that is a string" do
it "keeps the string pattern unmodified" do
Guard::Watcher.new('spec_helper.rb').pattern.should == 'spec_helper.rb'
end
end
context "that is a regexp" do
it "keeps the regex pattern unmodified" do
Guard::Watcher.new(/spec_helper\.rb/).pattern.should == /spec_helper\.rb/
end
end
context "that is a string looking like a regex (deprecated)" do
before(:each) { Guard::UI.should_receive(:info).any_number_of_times }
it "converts the string automatically to a regex" do
Guard::Watcher.new('^spec_helper.rb').pattern.should == /^spec_helper.rb/
Guard::Watcher.new('spec_helper.rb$').pattern.should == /spec_helper.rb$/
Guard::Watcher.new('spec_helper\.rb').pattern.should == /spec_helper\.rb/
Guard::Watcher.new('.*_spec.rb').pattern.should == /.*_spec.rb/
end
end
end
end
describe "#action" do
it "sets the action to nothing by default" do
Guard::Watcher.new(/spec_helper\.rb/).action.should be_nil
end
it "sets the action to the supplied block" do
action = lambda { |m| "spec/#{m[1]}_spec.rb" }
Guard::Watcher.new(%r{^lib/(.*).rb}, action).action.should == action
end
end
describe ".match_files" do
before(:all) { @guard = Guard::Guard.new }
context "with a watcher without action" do
context "that is a regex pattern" do
before(:all) { @guard.watchers = [Guard::Watcher.new(/.*_spec\.rb/)] }
it "returns the paths that matches the regex" do
Guard::Watcher.match_files(@guard, ['guard_rocks_spec.rb', 'guard_rocks.rb']).should == ['guard_rocks_spec.rb']
end
end
context "that is a string pattern" do
before(:all) { @guard.watchers = [Guard::Watcher.new('guard_rocks_spec.rb')] }
it "returns the path that matches the string" do
Guard::Watcher.match_files(@guard, ['guard_rocks_spec.rb', 'guard_rocks.rb']).should == ['guard_rocks_spec.rb']
end
end
end
context "with a watcher action without parameter" do
before(:all) do
@guard.watchers = [
Guard::Watcher.new('spec_helper.rb', lambda { 'spec' }),
Guard::Watcher.new('addition.rb', lambda { 1 + 1 }),
Guard::Watcher.new('hash.rb', lambda { Hash[:foo, 'bar'] }),
Guard::Watcher.new('array.rb', lambda { ['foo', 'bar'] }),
Guard::Watcher.new('blank.rb', lambda { '' }),
Guard::Watcher.new(/^uptime\.rb/, lambda { `uptime > /dev/null` })
]
end
it "returns a single file specified within the action" do
Guard::Watcher.match_files(@guard, ['spec_helper.rb']).should == ['spec']
end
it "returns multiple files specified within the action" do
Guard::Watcher.match_files(@guard, ['hash.rb']).should == ['foo', 'bar']
end
it "returns multiple files by combining the results of different actions" do
Guard::Watcher.match_files(@guard, ['spec_helper.rb', 'array.rb']).should == ['spec', 'foo', 'bar']
end
it "returns nothing if the action returns something other than a string or an array of strings" do
Guard::Watcher.match_files(@guard, ['addition.rb']).should == []
end
it "returns nothing if the action response is empty" do
Guard::Watcher.match_files(@guard, ['blank.rb']).should == []
end
it "returns nothing if the action returns nothing" do
Guard::Watcher.match_files(@guard, ['uptime.rb']).should == []
end
end
context "with a watcher action that takes a parameter" do
before(:all) do
@guard.watchers = [
Guard::Watcher.new(%r{lib/(.*)\.rb}, lambda { |m| "spec/#{m[1]}_spec.rb" }),
Guard::Watcher.new(/addition(.*)\.rb/, lambda { |m| 1 + 1 }),
Guard::Watcher.new('hash.rb', lambda { Hash[:foo, 'bar'] }),
Guard::Watcher.new(/array(.*)\.rb/, lambda { |m| ['foo', 'bar'] }),
Guard::Watcher.new(/blank(.*)\.rb/, lambda { |m| '' }),
Guard::Watcher.new(/uptime(.*)\.rb/, lambda { |m| `uptime > /dev/null` })
]
end
it "returns a substituted single file specified within the action" do
Guard::Watcher.match_files(@guard, ['lib/my_wonderful_lib.rb']).should == ['spec/my_wonderful_lib_spec.rb']
end
it "returns multiple files specified within the action" do
Guard::Watcher.match_files(@guard, ['hash.rb']).should == ['foo', 'bar']
end
it "returns multiple files by combining the results of different actions" do
Guard::Watcher.match_files(@guard, ['lib/my_wonderful_lib.rb', 'array.rb']).should == ['spec/my_wonderful_lib_spec.rb', 'foo', 'bar']
end
it "returns nothing if the action returns something other than a string or an array of strings" do
Guard::Watcher.match_files(@guard, ['addition.rb']).should == []
end
it "returns nothing if the action response is empty" do
Guard::Watcher.match_files(@guard, ['blank.rb']).should == []
end
it "returns nothing if the action returns nothing" do
Guard::Watcher.match_files(@guard, ['uptime.rb']).should == []
end
end
context "with an exception that is raised" do
before(:all) { @guard.watchers = [Guard::Watcher.new('evil.rb', lambda { raise "EVIL" })] }
it "displays the error and backtrace" do
Guard::UI.should_receive(:error) { |msg|
msg.should include("Problem with watch action!")
msg.should include("EVIL")
}
Guard::Watcher.match_files(@guard, ['evil.rb'])
end
end
end
describe ".match_files?" do
before(:all) do
@guard1 = Guard::Guard.new([Guard::Watcher.new(/.*_spec\.rb/)])
@guard2 = Guard::Guard.new([Guard::Watcher.new('spec_helper.rb', 'spec')])
@guards = [@guard1, @guard2]
end
context "with a watcher that matches a file" do
specify { Guard::Watcher.match_files?(@guards, ['lib/my_wonderful_lib.rb', 'guard_rocks_spec.rb']).should be_true }
end
context "with no watcher that matches a file" do
specify { Guard::Watcher.match_files?(@guards, ['lib/my_wonderful_lib.rb']).should be_false }
end
end
describe "#match_file?" do
context "with a string pattern" do
context "that is a normal string" do
subject { Guard::Watcher.new('guard_rocks_spec.rb') }
context "with a watcher that matches a file" do
specify { subject.match_file?('guard_rocks_spec.rb').should be_true }
end
context "with no watcher that matches a file" do
specify { subject.match_file?('lib/my_wonderful_lib.rb').should be_false }
end
end
context "that is a string representing a regexp (deprecated)" do
subject { Guard::Watcher.new('^guard_rocks_spec\.rb$') }
context "with a watcher that matches a file" do
specify { subject.match_file?('guard_rocks_spec.rb').should be_true }
end
context "with no watcher that matches a file" do
specify { subject.match_file?('lib/my_wonderful_lib.rb').should be_false }
end
end
end
context "that is a regexp pattern" do
subject { Guard::Watcher.new(/.*_spec\.rb/) }
context "with a watcher that matches a file" do
specify { subject.match_file?('guard_rocks_spec.rb').should be_true }
end
context "with no watcher that matches a file" do
specify { subject.match_file?('lib/my_wonderful_lib.rb').should be_false }
end
end
end
describe ".match_guardfile?" do
before(:all) { Guard::Dsl.stub(:guardfile_path) { Dir.pwd + '/Guardfile' } }
context "with files that match the Guardfile" do
specify { Guard::Watcher.match_guardfile?(['Guardfile', 'guard_rocks_spec.rb']).should be_true }
end
context "with no files that match the Guardfile" do
specify { Guard::Watcher.match_guardfile?(['guard_rocks.rb', 'guard_rocks_spec.rb']).should be_false }
end
end
end