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require_relative 'spec_helper'
describe Warning do
describe 'when subclassed' do
it 'registers the new class in all_warnings' do
klass = Class.new(Warning)
Warning.all_warnings.should include(klass)
end
end
it 'does not match anything' do
Warning.should_not warn('hello(world)')
Warning.should_not warn(' a +b ')
end
describe 'short names in warnings' do
before do
@real_warnings = Warning.all_warnings.select do |x|
x.name && x != Warning && x != FileWarning && x != LineWarning
end
end
it 'exist for every warning class' do
@real_warnings.select {|x| x.name && x.short_name == nil}.should be_empty
end
it 'do not conflict with each other' do
short_names = @real_warnings.map {|x| x.short_name}.uniq
short_names.size.should == @real_warnings.size
end
end
it 'does not change lines when it fixes them' do
Warning.should correct_to('a+b', 'a+b')
Warning.should correct_to(' b ** c+1 eval(string) ', ' b ** c+1 eval(string) ')
end
describe '#concrete_warnings' do
before { @concrete = Warning.concrete_warnings }
it 'returns a list of classes that are subclasses of Warning' do
@concrete.should_not be_empty
@concrete.each {|w| w.ancestors.should include(Warning) }
end
it 'returns a list that does not contain Warning, FileWarning, or LineWarning' do
@concrete.should_not include(Warning)
@concrete.should_not include(FileWarning)
@concrete.should_not include(LineWarning)
end
end
describe '#desc' do
it "defaults to the class's name with all info" do
warning = Warning.new('hello.rb', 'a+b')
warning.severity = 7
warning.line_number = 3
warning.desc.should == 'Laser::Warning hello.rb:3 (7)'
end
it 'when specified in a subclass as a string, just uses the string' do
subclass = Class.new(Warning) { desc 'hello' }
subclass.new('a', 'b').desc.should == 'hello'
end
it 'when specified in a subclass as a block, runs that proc as the instance' do
subclass = Class.new(Warning) do
severity 1024
desc { self.class.severity.to_s }
end
subclass.new('a', 'b').desc.should == '1024'
end
end
describe '#type' do
it 'returns the current type when no args are provided' do
klass = Class.new(Warning) do
def self.set_type
@type = 'hai'
end
end
klass.set_type
klass.type.should == 'hai'
end
it 'sets the type when an argument is provided' do
klass = Class.new(Warning) { type :silly }
klass.type.should == 'silly'
end
it 'sets a short name based on the type provided' do
klass = Class.new(Warning) { type :silly }
klass.short_name.should =~ /SI\d/
end
end
end