test: ♻️ add ability to check any step for browser version before asserting on it

Author: gingerbenw

test/browser/features/lib/browser.rb

@@ -15,6 +15,14 @@ def initialize(browser_spec)
       end
   end
 
+  def name
+    @name
+  end
+
+  def version
+    @version
+  end
+
   # is this a mobile device?
   # we assume that android devices are always using the latest version of chrome
   def mobile?
@@ -63,6 +71,20 @@ def supported_web_vitals
     end
   end
 
+  # | browser | version |
+  # | chrome  | 54      |
+  # | firefox | 45      |
+  # | edge    | 17      |
+  # | safari  | 16.4    |
+  def supports_performance_encoded_body_size?
+    case @name
+    when "safari"
+      @version >= 17 # we test on 16.3 - not sure what to do here?
+    else 
+      true
+    end
+  end
+
   def supports_performance_response_status?
     case @name
     when "chrome", "edge"

test/browser/features/resource-load-spans.feature

@@ -25,7 +25,8 @@ Feature: Resource Load Spans
     And the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" string attribute "http.url" matches the regex "^http:\/\/.*:[0-9]{4}\/favicon\.png\?height=100&width=100$"
     And the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" string attribute "http.flavor" equals "1.1"
 
-    # Image status code and body size have very patchy browser coverage
-    And if present, the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.status_code" equals 200
-    And if present, the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.response_content_length" equals 2202
-    And if present, the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.response_content_length_uncompressed" equals 2202
+    # Image status code and body size have patchy browser coverage
+    And on the browser Chrome 109: the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.status_code" equals 200
+
+    And on the browsers Chrome 73, Safari 13, Firefox 67: the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.response_content_length" equals 2202
+    And on the browsers Chrome 73, Safari 13, Firefox 67: the trace payload field "resourceSpans.0.scopeSpans.0.spans.1" integer attribute "http.response_content_length_uncompressed" equals 2202

test/browser/features/steps/browser-steps.rb

@@ -182,15 +182,17 @@
   end
 end
 
-def check_attribute_equal_if_present(field, attribute, attr_type, expected)
-  actual = get_attribute_value field, attribute, attr_type
-  if actual != nil
-    Maze.check.equal(expected, actual)
+Then(/^on the (?:browser|browsers) (.*): (.+)/) do |spec, step_text|
+  current_platform = $browser.name
+  current_version = $browser.version
+  
+  browsers = spec.split(",")
+
+  for browser in browsers do
+    name, version = browser.split(" ")
+    step(step_text) if current_platform.casecmp(name).zero? && current_version >= version.to_i
   end
-end
 
-Then('if present, the trace payload field {string} integer attribute {string} equals {int}') do |field, attribute, expected|
-  check_attribute_equal_if_present field, attribute, 'intValue', expected
 end
 
 module Maze