2 files changed, 12 insertions(+), 1 deletions(-)

M lib/customer_fwd.rb
M test/test_customer_fwd.rb

@@ 61,6 61,11 @@ class CustomerFwd
 			true
 		end
 
+		def initialize(values)
+			super
+			raise "Bad tel format: #{uri}" unless uri.match?(/\Atel:\+1\d{10}\Z/)
+		end
+
 		def to
 			uri.sub(/^tel:/, "")
 		end

@@ 33,13 33,19 @@ class CustomerFwdTest < Minitest::Test
 		assert_equal sip, fwd.to
 	end
 
-	property(:for_tel) { "+#{string(:digit)}" }
+	property(:for_tel) { sized(10) { "+1#{string(:digit)}" } }
 	def for_tel(tel)
 		fwd = CustomerFwd.for(uri: "tel:#{tel}", timeout: 10)
 		assert_kind_of CustomerFwd::Tel, fwd
 		assert_equal tel, fwd.to
 	end
 
+	def test_for_bad_tel
+		assert_raises do
+			CustomerFwd.for(uri: "tel:2261234567", timeout: 10)
+		end
+	end
+
 	property(:for_sip) { "#{string(:alnum)}@#{string(:alnum)}.example.com" }
 	def for_sip(sip)
 		fwd = CustomerFwd.for(uri: "sip:#{sip}", timeout: 10)