fix: assert_frame_ready false negative when document.readyState is 'i…

…nteractive' #353

packages/axe-core-api/lib/axe/api/run.rb

@@ -104,8 +104,6 @@ def within_about_blank_context(page)
         end
         new_handle = new_handles[0]
         driver.switch_to.window new_handle
-
-
         driver.get "about:blank"
 
         ret = yield page

packages/axe-core-api/lib/axe/core.rb

@@ -41,13 +41,18 @@ def use_run_partial
     def assert_frame_ready
       begin
         ready = Timeout.timeout(10) {
-          @page.evaluate_script <<-JS
-            document.readyState === 'complete'
-          JS
+          wait = Selenium::WebDriver::Wait.new(:timeout => 10)
+          wait.until { 
+            readyState = @page.evaluate_script <<-JS
+              document.readyState
+            JS
+            readyState === 'complete'
+          }
         }
       rescue Timeout::Error
         ready = false
       end
+
       raise Exception.new "Page/frame not ready" if not ready
     end
 

packages/axe-core-api/spec/axe/core_spec.rb

@@ -7,8 +7,7 @@ module Axe
     let(:page) {
       spy("page", evaluate_script: false)
     }
-    before { allow(page).to receive(:evaluate_script).and_return(false, true, false) }
-
+    before { allow(page).to receive(:evaluate_script).and_return(false, 'complete', false) }
     describe "initialize" do
       # We have removed comments from `axe.min.js`, so excluding this test
       # Hence cannot do start_with("/*! aXe"), instead do a function we know should exist check
@@ -25,6 +24,14 @@ module Axe
           expect(page).not_to have_received(:execute_script)
         end
       end
+
+      context "when document.readyState is interactive" do
+        before { allow(page).to receive(:evaluate_script).and_return(false, 'interactive', 'interactive', 'complete') }
+        it "should check ready frame until complete, then proceed" do
+          described_class.new(page)
+          expect(page).to have_received(:execute_script).with(a_string_including ("axe.run="))
+        end
+      end
     end
 
     describe "call" do