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Contents
require "minitest_helper"
module Hermod
module Validators
describe TypeChecker do
it "uses a default block that checks the value is an instance of the given class" do
checker = TypeChecker.new(Integer)
checker.valid?(1, {}).must_equal true
proc { checker.valid?(1.0, {}) }.must_raise InvalidInputError
end
it "allows you to give a block to be more discerning" do
checker = TypeChecker.new(Integer) { |val| val > 0 }
checker.valid?(5, {}).must_equal true
proc { checker.valid?(-2, {}) }.must_raise InvalidInputError
end
it "ignores blank values" do
checker = TypeChecker.new(Integer)
checker.valid?(nil, {}).must_equal true
end
it "gives the correct message" do
ex = proc { TypeChecker.new(Integer).valid?(1.0, {}) }.must_raise InvalidInputError
ex.message.must_equal "must be an integer"
ex = proc { TypeChecker.new(Float).valid?(1, {}) }.must_raise InvalidInputError
ex.message.must_equal "must be a float"
end
end
end
end
Version data entries
16 entries across 16 versions & 1 rubygems