Decouple specs from global state to isolated tests

spec/dsl_helper.cr

@@ -0,0 +1,58 @@
+require "./spec_helper"
+require "../src/kemal/dsl"
+
+include Kemal
+
+class CustomLogHandler < Kemal::BaseLogHandler
+  def call(env)
+    call_next env
+  end
+
+  def write(message)
+  end
+end
+
+class TestContextStorageType
+  property id
+  @id = 1
+
+  def to_s
+    @id
+  end
+end
+
+class AnotherContextStorageType
+  property name
+  @name = "kemal-context"
+end
+
+add_context_storage_type(TestContextStorageType)
+add_context_storage_type(AnotherContextStorageType)
+
+def create_request_and_return_io(handler, request)
+  io = IO::Memory.new
+  response = HTTP::Server::Response.new(io)
+  context = HTTP::Server::Context.new(request, response)
+  context.app = Kemal.application
+  handler.call(context)
+  response.close
+  io.rewind
+  io
+end
+
+def call_request_on_app(request)
+  call_request_on_app(Kemal.application, request)
+end
+
+def build_main_handler
+  build_main_handler(Kemal.application)
+end
+
+Spec.before_each do
+  config = Kemal.config
+  config.env = "development"
+end
+
+Spec.after_each do
+  Kemal.application.clear
+end