fixing up controller + adding testts

app/controllers/fertilizer_trackers_controller.rb

@@ -65,6 +65,6 @@ def set_fertilizer_tracker
 
     # Only allow a list of trusted parameters through.
     def fertilizer_tracker_params
-      params.fetch(:fertilizer_tracker, {})
+      params.require(:fertilizer_tracker).permit([:name, :date])
     end
 end

test/controllers/fertilizer_trackers_test.rb

@@ -0,0 +1,47 @@
+require "test_helper"
+class FertilizerTrackersControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @fertilizer_tracker = fertilizer_trackers(:one)
+  end
+
+  test "should get index" do
+    get fertilizer_trackers_url
+    assert_response :success
+  end
+
+  test "should get new" do
+    get new_fertilizer_tracker_url
+    assert_response :success
+  end
+
+  test "should create fertilizer_tracker" do
+    assert_difference("FertilizerTracker.count") do
+      post fertilizer_trackers_url, params: { fertilizer_tracker: { date: '2006-6-6', name: 'giga' } }
+    end
+
+    assert_redirected_to fertilizer_tracker_url(FertilizerTracker.last)
+  end
+
+  test "should show fertilizer_tracker" do
+    get fertilizer_tracker_url(@fertilizer_tracker)
+    assert_response :success
+  end
+
+  test "should get edit" do
+    get edit_fertilizer_tracker_url(@fertilizer_tracker)
+    assert_response :success
+  end
+
+  test "should update fertilizer_tracker" do
+    patch fertilizer_tracker_url(@fertilizer_tracker), params: { fertilizer_tracker: { date: '2006-06-06' } }
+    assert_redirected_to fertilizer_tracker_url(@fertilizer_tracker)
+  end
+
+  test "should destroy fertilizer_tracker" do
+    assert_difference("FertilizerTracker.count", -1) do
+      delete fertilizer_tracker_url(@fertilizer_tracker)
+    end
+
+    assert_redirected_to fertilizer_trackers_url
+  end
+end