Start resolving parameters

lib/rspec/swagger/helpers.rb

@@ -11,6 +11,7 @@ module RSpec
         config.extend Operation,   swagger_object: :operation
         config.extend Parameters,  swagger_object: :operation
         config.extend Response,    swagger_object: :status_code
+        config.include Common,     :swagger_object
       end
 
 
@@ -42,6 +43,8 @@ paths: (Paths)
 =end
       module Paths
         def path template, &block
+          raise ArgumentError, "Path must start with a /" unless template.starts_with?('/')
+
           #TODO template might be a $ref
           meta = {
             swagger_object: :path_item,
@@ -53,6 +56,8 @@ paths: (Paths)
 
       module PathItem
         def operation verb, desc, &block
+          # TODO, check verbs against a whitelist
+
           verb = verb.to_s.downcase
           meta = {
             swagger_object: :operation,
@@ -72,12 +77,14 @@ paths: (Paths)
             raise ArgumentError, "Invalid 'in' parameter, must be one of #{locations}"
           end
 
+          # Path attributes are always required
+          attributes[:required] = true if attributes[:in] == :path
+
           # if name.respond_to?(:has_key?)
           #   param = { '$ref' => name.delete(:ref) || name.delete('ref') }
           # end
 
-          params_key = "#{metadata[:swagger_object]}_params".to_sym
-          params = metadata[:swagger_data][params_key] ||= {}
+          params = metadata[:swagger_data][:params] ||= {}
 
           param = { name: name.to_s }.merge(attributes)
           # Params should be unique based on the 'name' and 'in' values.
@@ -89,9 +96,8 @@ paths: (Paths)
       module Operation
         def response status_code, desc, params = {}, headers = {}, &block
           unless status_code == :default || (100..599).cover?(status_code)
-            raise ArgumentError, "status_code must be between 100 and 599 or :default"
+            raise ArgumentError, "status_code must be an integer 100 to 599, or :default"
           end
-
           meta = {
             swagger_object: :status_code,
             swagger_data: metadata[:swagger_data].merge(status_code: status_code, response_description: desc)
@@ -99,30 +105,29 @@ paths: (Paths)
           describe("#{status_code}", meta) do
             self.module_exec(&block) if block_given?
 
-            method = metadata[:swagger_data][:operation]
-            path = metadata[:swagger_data][:path]
-            args = if ::Rails::VERSION::MAJOR >= 5
-              [path, {params: params, headers: headers}]
-            else
-              [path, params, headers]
-            end
-
             # TODO: this needs a better mechanism
             if metadata[:capture_example]
               example = metadata[:swagger_data][:example] = {}
             end
 
-            meta = {
-              swagger_object: :response
-              # response: metadata[:swagger_data][:response].merge()
-            }
-            it("matches", meta) do
+            before do |example|
+              method = example.metadata[:swagger_data][:operation]
+              path = resolve_path(example.metadata[:swagger_data][:path], self)
+              args = if ::Rails::VERSION::MAJOR >= 5
+                [path, {params: params, headers: headers}]
+              else
+                [path, params, headers]
+              end
+
               self.send(method, *args)
 
-              if response && example
-                example.merge!( body: response.body, content_type: response.content_type.to_s)
-              end
+# TODO fix the naming collision
+              # if example
+              #   example.merge!(body: response.body, content_type: response.content_type.to_s)
+              # end
+            end
 
+            it("matches", { swagger_object: :response }) do
               expect(response).to have_http_status(status_code)
             end
           end
@@ -134,6 +139,21 @@ paths: (Paths)
           metadata[:capture_example] = true
         end
       end
+
+      module Common
+        def resolve_params swagger_data, group_instance
+          # TODO resolve $refs
+          # TODO there should only be one body param
+          # TODO there should not be both body and formData params
+          swagger_data[:params].values.map do |p|
+            p.slice(:name, :in).merge(value: group_instance.send(p[:name]))
+          end
+        end
+
+        def resolve_path template, group_instance
+          template.gsub(/(\{.*?\})/){|match| group_instance.send(match[1...-1]) }
+        end
+      end
     end
   end
 end

spec/requests/request_spec.rb

@@ -15,8 +15,10 @@ RSpec.describe "Requestsing", type: :request do
     end
   end
 
-  path '/posts/1' do
-    parameter "path-param", {in: :path}
+  path '/posts/{post_id}' do
+    parameter "post_id", {in: :path}
+    let(:post_id) { 1 }
+
     operation "GET", "fetch item" do
       before { Post.new.save }
       parameter "op-param", {in: :query}

spec/rspec/swagger/helpers_spec.rb

 require "spec_helper"
 
+RSpec.describe RSpec::Swagger::Helpers::Paths do
+  let(:klass) do
+    Class.new do
+      include RSpec::Swagger::Helpers::Paths
+      attr_accessor :metadata
+      def describe *args ; end
+    end
+  end
+  subject { klass.new }
+
+  it "requires the path start with a /" do
+    expect{ subject.path("foo") }.to raise_exception(ArgumentError)
+    expect{ subject.path("/foo") }.not_to raise_exception
+  end
+end
+
 RSpec.describe RSpec::Swagger::Helpers::Parameters do
   let(:klass) do
     Class.new do
@@ -13,39 +29,28 @@ RSpec.describe RSpec::Swagger::Helpers::Parameters do
     before { subject.metadata = {swagger_object: :path_item, swagger_data: {}} }
 
     it "requires 'in' parameter" do
-      expect{ subject.parameter "name", foo: :bar }.to raise_exception(ArgumentError)
+      expect{ subject.parameter("name", foo: :bar) }.to raise_exception(ArgumentError)
     end
 
     it "validates 'in' parameter" do
-      expect{ subject.parameter "name", in: :form_data }.to raise_exception(ArgumentError)
-      expect{ subject.parameter "name", in: "formData" }.to raise_exception(ArgumentError)
-      expect{ subject.parameter "name", in: :formData }.not_to raise_exception
+      expect{ subject.parameter("name", in: :form_data) }.to raise_exception(ArgumentError)
+      expect{ subject.parameter("name", in: "formData") }.to raise_exception(ArgumentError)
+      expect{ subject.parameter("name", in: :formData) }.not_to raise_exception
     end
 
-    context "on a path_item" do
-      before { subject.metadata = {swagger_object: :path_item, swagger_data: {}} }
+    it "marks path parameters as required" do
+      subject.parameter("name", in: :path)
 
-      it "keeps parameters unique by name and in" do
-        subject.parameter('foo', in: :path)
-        subject.parameter('foo', in: :path)
-        subject.parameter('bar', in: :query)
-        subject.parameter('baz', in: :query)
-
-        expect(subject.metadata[:swagger_data][:path_item_params].length).to eq 3
-      end
+      expect(subject.metadata[:swagger_data][:params].values.first).to include(required: true)
     end
 
-    context "on an operation" do
-      before { subject.metadata = {swagger_object: :operation, swagger_data: {}} }
-
-      it "keeps parameters unique by name and in" do
-        subject.parameter('foo', in: :path)
-        subject.parameter('foo', in: :path)
-        subject.parameter('bar', in: :query)
-        subject.parameter('baz', in: :query)
+    it "keeps parameters unique by name and location" do
+      subject.parameter('foo', in: :path)
+      subject.parameter('foo', in: :path)
+      subject.parameter('bar', in: :query)
+      subject.parameter('baz', in: :query)
 
-        expect(subject.metadata[:swagger_data][:operation_params].length).to eq 3
-      end
+      expect(subject.metadata[:swagger_data][:params].length).to eq 3
     end
   end
 end
@@ -76,3 +81,54 @@ RSpec.describe RSpec::Swagger::Helpers::Operation do
     end
   end
 end
+
+
+RSpec.describe RSpec::Swagger::Helpers::Common do
+  # Tthis helper is an include rather than an extend we can get it pulled into
+  # the test just by matching the filter metadata.
+  describe("#resolve_params", swagger_object: :something) do
+    let(:swagger_data) { { params: params } }
+
+    describe "with a missing value" do
+      let(:params) { {"path&post_id" => {name: "post_id", in: :path}} }
+
+      # TODO best thing would be to lazily evaulate the params so we'd only
+      # hit this if something was trying to use it.
+      it "raises an error" do
+        expect{resolve_params(swagger_data, self)}.to raise_exception(NoMethodError)
+      end
+    end
+
+    describe "with a valid value" do
+      let(:params) { {"path&post_id" => {name: "post_id", in: :path, description: "long"}} }
+      let(:post_id) { 123 }
+
+      it "returns it" do
+        expect(resolve_params(swagger_data, self)).to eq([{name: "post_id", in: :path, value: 123}])
+      end
+    end
+  end
+
+  describe("#resolve_params", swagger_object: :something) do
+    describe "with a missing value" do
+      it "raises an error" do
+        expect{ resolve_path('/sites/{site_id}', self) }.to raise_exception(NoMethodError)
+      end
+    end
+
+    describe "with values" do
+      let(:site_id) { 1001 }
+      let(:accountId) { "pickles" }
+
+      it "substitutes them into the path" do
+        expect(resolve_path('/sites/{site_id}/accounts/{accountId}', self)).to eq('/sites/1001/accounts/pickles')
+      end
+    end
+
+    describe "with a base path" do
+      xit "prefixes the path" do
+
+      end
+    end
+  end
+end