Add Telnet regression test suite

test/test_helper.rb

@@ -0,0 +1,54 @@
+module MeowTest
+  Failure = Class.new(StandardError)
+
+  @tests = []
+
+  class << self
+    attr_reader :tests, :last_result
+
+    def test(name, &block)
+      @tests << [name, block]
+    end
+
+    def assert(value, message = "Expected value to be truthy")
+      raise Failure, message unless value
+    end
+
+    def refute(value, message = "Expected value to be falsey")
+      raise Failure, message if value
+    end
+
+    def assert_equal(expected, actual, message = nil)
+      return if expected == actual
+
+      detail = "Expected #{expected.inspect}, got #{actual.inspect}"
+      raise Failure, [message, detail].compact.join(": ")
+    end
+
+    def assert_empty(value, message = nil)
+      assert(value.empty?, message || "Expected #{value.inspect} to be empty")
+    end
+
+    def run!
+      failures = []
+      @tests.each do |name, test|
+        test.call
+        puts "PASS #{name}"
+      rescue StandardError => error
+        failures << [name, error]
+        puts "FAIL #{name}: #{error.class}: #{error.message}"
+      end
+
+      @last_result = {
+        :tests => @tests.length,
+        :passed => @tests.length - failures.length,
+        :failures => failures.length,
+        :failure_details => failures.map { |name, error| "#{name}: #{error.class}: #{error.message}" }
+      }
+      puts "#{@last_result[:passed]}/#{@last_result[:tests]} tests passed"
+      raise Failure, @last_result[:failure_details].join("\n") unless failures.empty?
+
+      @last_result
+    end
+  end
+end