fix broken github login

app/controllers/api/reports_controller.rb

@@ -9,13 +9,13 @@ def simplecov
         report.generate_bundled_html if report.parts_complete?
         general_coverage = report.results["general_coverage"]
 
-        coverage_diff = general_coverage - report.project.last_main_branch_general_coverage
+        coverage_diff = (general_coverage - report.project.last_main_branch_general_coverage).round(2)
         markdown_diff = if coverage_diff.zero?
           "(Same as the main branch)"
         elsif coverage_diff.positive?
           "(+#{coverage_diff}% coverage improved)"
         else
-          "(-#{coverage_diff}% coverage decreased 😢)"
+          "(#{coverage_diff}% coverage decreased 😢)"
         end
 
         markdown = <<~MARKDOWN

app/services/users/omniauth_upserter.rb

@@ -18,6 +18,8 @@ def call
       end
 
       enroll_from_organization_queues
+
+      @user
     end
 
     private

test/services/users/omniauth_upserter_test.rb

@@ -22,14 +22,13 @@ def setup
 
   def test_creates_new_user_if_not_existing
     assert_difference "User.count", 1 do
-      ::Users::OmniauthUpserter.new(@auth).call
+      @returned_user = ::Users::OmniauthUpserter.new(@auth).call
     end
 
-    user = User.find_by(uid: @auth.uid)
-    assert_equal "github", user.provider
-    assert_equal "12345", user.uid
-    assert_equal "testuser", user.handle
-    assert_equal "[email protected]", user.email
+    assert_equal "github", @returned_user.provider
+    assert_equal "12345", @returned_user.uid
+    assert_equal "testuser", @returned_user.handle
+    assert_equal "[email protected]", @returned_user.email
   end
 
   def test_finds_existing_user_if_already_exists
@@ -42,26 +41,26 @@ def test_finds_existing_user_if_already_exists
     )
 
     assert_no_difference "User.count" do
-      ::Users::OmniauthUpserter.new(@auth).call
+      @returned_user = ::Users::OmniauthUpserter.new(@auth).call
     end
 
-    user = User.find_by(uid: @auth.uid)
-    assert_equal existing_user.id, user.id
+    assert_equal existing_user.id, @returned_user.id
   end
 
   def test_enrolls_user_from_organization_queues
-    ::Users::OmniauthUpserter.new(@auth).call
-    user = User.find_by(uid: @auth.uid)
+    @returned_user = ::Users::OmniauthUpserter.new(@auth).call
 
-    assert @organization.reload.user_queue.exclude?(user.handle)
-    assert OrganizationUser.exists?(organization: @organization, user: user)
+    assert @organization.reload.user_queue.exclude?(@returned_user.handle)
+    assert OrganizationUser.exists?(organization: @organization, user: @returned_user)
   end
 
   def test_does_not_fail_when_handle_not_in_queue
     @organization.update!(user_queue: [])
 
     assert_nothing_raised do
-      ::Users::OmniauthUpserter.new(@auth).call
+      @returned_user = ::Users::OmniauthUpserter.new(@auth).call
     end
+
+    assert existing_user.is_a?(User)
   end
 end