brew/Library/Homebrew/test/test_formula_validation.rb
Jack Nagel 2e26afe556 Improved formula attribute validation
The initializer for Formula does a number of validations, but it does
them in a weird order, and some attributes aren't validated under
certain circumstances. This became even more of a mess when most
software package attributes were moved into the SoftwareSpec class.

This commit removes the last vestiges of storing these attributes as
instance variables. In particular, it eliminates #set_instance_variable
and #validate_variable, replacing them with methods that operate on
SoftwareSpec instances, and generate more useful errors.

Doing these validations unconditionally in the initializer means we bail
out much earlier if the formula has invalid attributes or is not fully
specified, and no longer need to validate in #prefix.

Technically we don't need to validate in #brew either, but we continue
to do so anyway as a safety measure, and because we cannot enforce calls
to super in subclasses.
2013-04-13 17:40:12 -05:00

70 lines
1.2 KiB
Ruby

require 'testing_env'
require 'formula'
class FormulaValidationTests < Test::Unit::TestCase
def formula(*args, &block)
Class.new(Formula, &block).new(*args)
end
def assert_invalid(attr, &block)
e = assert_raises(FormulaValidationError, &block)
assert_equal attr, e.attr
end
def test_cant_override_brew
assert_raises(RuntimeError) do
Class.new(Formula) { def brew; end }
end
end
def test_validates_name
assert_invalid :name do
formula "name with spaces" do
url "foo"
version "1.0"
end
end
end
def test_validates_url
assert_invalid :url do
formula do
url ""
version "1"
end
end
end
def test_validates_version
assert_invalid :version do
formula do
url "foo"
version "version with spaces"
end
end
assert_invalid :version do
formula do
url "foo"
version ""
end
end
end
def test_validates_when_initialize_overridden
assert_invalid :name do
formula do
def initialize; end
end.brew {}
end
end
def test_head_only_valid
assert_nothing_raised do
formula do
head "foo"
end
end
end
end