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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)
expect(checker.valid?(1, {})).must_equal true
expect { 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 }
expect(checker.valid?(5, {})).must_equal true
expect { checker.valid?(-2, {}) }.must_raise InvalidInputError
end
it "ignores blank values" do
checker = TypeChecker.new(Integer)
expect(checker.valid?(nil, {})).must_equal true
end
it "gives the correct message" do
ex = expect { TypeChecker.new(Integer).valid?(1.0, {}) }.must_raise InvalidInputError
expect(ex.message).must_equal "must be an integer"
ex = expect { TypeChecker.new(Float).valid?(1, {}) }.must_raise InvalidInputError
expect(ex.message).must_equal "must be a float"
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems