Add some unit testing for the new model

InvenTree/stock/fixtures/stock.yaml

@@ -70,6 +70,18 @@
     lft: 0
     rght: 0
 
+- model: stock.stockitem
+  pk: 105
+  fields:
+    part: 25
+    location: 7
+    quantity: 1
+    serial: 1000
+    level: 0
+    tree_id: 0
+    lft: 0
+    rght: 0
+
 # Stock items for template / variant parts
 - model: stock.stockitem
   pk: 500

InvenTree/stock/fixtures/stock_tests.yaml

@@ -0,0 +1,31 @@
+- model: stock.stockitemtestresult
+  fields:
+    stock_item: 105
+    test: "Firmware Version"
+    value: "0xA1B2C3D4"
+    result: True
+    date: 2020-02-02
+
+- model: stock.stockitemtestresult
+  fields:
+    stock_item: 105
+    test: "Settings Checksum"
+    value: "0xAABBCCDD"
+    result: True
+    date: 2020-02-02
+
+- model: stock.stockitemtestresult
+  fields:
+    stock_item: 105
+    test: "Temperature Test"
+    result: False
+    date: 2020-05-16
+    notes: 'Got too hot or something'
+
+- model: stock.stockitemtestresult
+  fields:
+    stock_item: 105
+    test: "Temperature Test"
+    result: True
+    date: 2020-05-17
+    notes: 'Passed temperature test by making it cooler'

InvenTree/stock/migrations/0041_stockitemtestresult_notes.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.5 on 2020-05-16 10:14
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('stock', '0040_stockitemtestresult'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='stockitemtestresult',
+            name='notes',
+            field=models.CharField(blank=True, help_text='Test notes', max_length=500, verbose_name='Notes'),
+        ),
+    ]

InvenTree/stock/models.py

@@ -921,6 +921,24 @@ class StockItem(MPTTModel):
 
         return s
 
+    def getTestResults(self, test=None, result=None, user=None):
+
+        results = self.test_results
+
+        if test:
+            # Filter by test name
+            results = results.filter(test=test)
+
+        if result is not None:
+            # Filter by test status
+            results = results.filter(result=result)
+
+        if user:
+            # Filter by user
+            results = results.filter(user=user)
+
+        return results
+
 
 @receiver(pre_delete, sender=StockItem, dispatch_uid='stock_item_pre_delete_log')
 def before_delete_stock_item(sender, instance, using, **kwargs):
@@ -1009,6 +1027,7 @@ class StockItemTestResult(models.Model):
         result: Test result value (pass / fail / etc)
         value: Recorded test output value (optional)
         attachment: Link to StockItem attachment (optional)
+        notes: Extra user notes related to the test (optional)
         user: User who uploaded the test result
         date: Date the test result was recorded
     """
@@ -1059,6 +1078,12 @@ class StockItemTestResult(models.Model):
         help_text=_('Test result attachment'),
     )
 
+    notes = models.CharField(
+        blank=True, max_length=500,
+        verbose_name=_('Notes'),
+        help_text=_("Test notes"),
+    )
+
     user = models.ForeignKey(
         User,
         on_delete = models.SET_NULL,

InvenTree/stock/tests.py

@@ -17,6 +17,7 @@ class StockTest(TestCase):
         'part',
         'location',
         'stock',
+        'stock_tests',
     ]
 
     def setUp(self):
@@ -95,8 +96,8 @@ class StockTest(TestCase):
         self.assertFalse(self.drawer2.has_items())
 
         # Drawer 3 should have three stock items
-        self.assertEqual(self.drawer3.stock_items.count(), 15)
-        self.assertEqual(self.drawer3.item_count, 15)
+        self.assertEqual(self.drawer3.stock_items.count(), 16)
+        self.assertEqual(self.drawer3.item_count, 16)
 
     def test_stock_count(self):
         part = Part.objects.get(pk=1)
@@ -108,7 +109,7 @@ class StockTest(TestCase):
         self.assertEqual(part.total_stock, 9000)
 
         # There should be 18 widgets in stock
-        self.assertEqual(StockItem.objects.filter(part=25).aggregate(Sum('quantity'))['quantity__sum'], 18)
+        self.assertEqual(StockItem.objects.filter(part=25).aggregate(Sum('quantity'))['quantity__sum'], 19)
 
     def test_delete_location(self):
 
@@ -168,12 +169,12 @@ class StockTest(TestCase):
         self.assertEqual(w1.quantity, 4)
 
         # There should also be a new object still in drawer3
-        self.assertEqual(StockItem.objects.filter(part=25).count(), 4)
+        self.assertEqual(StockItem.objects.filter(part=25).count(), 5)
         widget = StockItem.objects.get(location=self.drawer3.id, part=25, quantity=4)
 
         # Try to move negative units
         self.assertFalse(widget.move(self.bathroom, 'Test', None, quantity=-100))
-        self.assertEqual(StockItem.objects.filter(part=25).count(), 4)
+        self.assertEqual(StockItem.objects.filter(part=25).count(), 5)
 
         # Try to move to a blank location
         self.assertFalse(widget.move(None, 'null', None))
@@ -404,3 +405,21 @@ class VariantTest(StockTest):
 
         item.serial += 1
         item.save()
+
+
+class TestResultTest(StockTest):
+    """
+    Tests for the StockItemTestResult model.
+    """
+
+    def test_test_count(self):
+        item = StockItem.objects.get(pk=105)
+        tests = item.test_results
+        self.assertEqual(tests.count(), 4)
+
+        results = item.getTestResults(test="Temperature Test")
+        self.assertEqual(results.count(), 2)
+
+        # Passing tests
+        self.assertEqual(item.getTestResults(result=True).count(), 3)
+        self.assertEqual(item.getTestResults(result=False).count(), 1)