73 lines
4.4 KiB
Python
73 lines
4.4 KiB
Python
"""The destructive column move must preserve existing device hardware."""
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from django.db import connection
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from django.db.migrations.executor import MigrationExecutor
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from django.test import TransactionTestCase
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OLD = [("inventory", "0008_normalize_hardware_by_type")]
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NEW = [("inventory", "0009_split_device_specifications")]
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LATEST = [("inventory", "0012_allinonespecification_desktopspecification_and_more")]
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class SpecificationMigrationTests(TransactionTestCase):
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def test_existing_rows_move_to_the_correct_type_table(self):
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executor = MigrationExecutor(connection)
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executor.migrate(OLD)
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try:
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apps = executor.loader.project_state(OLD).apps
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Choice = apps.get_model("inventory", "ChoiceValue")
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Device = apps.get_model("inventory", "Device")
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status, _ = Choice.objects.get_or_create(kind="status", label="Eingang")
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laptop, _ = Choice.objects.get_or_create(kind="device_type", label="Laptop")
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printer, _ = Choice.objects.get_or_create(kind="device_type", label="Drucker")
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screen, _ = Choice.objects.get_or_create(kind="device_type", label="Bildschirm")
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laptop_id = Device.objects.create(number=91001, status=status, device_type=laptop, cpu="Core i5", ram_gb=16).pk
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printer_id = Device.objects.create(number=91002, status=status, device_type=printer, wifi="YES").pk
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screen_id = Device.objects.create(number=91003, status=status, device_type=screen, display_inches="24.0").pk
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executor = MigrationExecutor(connection)
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executor.migrate(NEW)
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apps = executor.loader.project_state(NEW).apps
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Device = apps.get_model("inventory", "Device")
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Computer = apps.get_model("inventory", "ComputerSpecification")
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Printer = apps.get_model("inventory", "PrinterSpecification")
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Monitor = apps.get_model("inventory", "MonitorSpecification")
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self.assertNotIn("ram_gb", {field.name for field in Device._meta.fields})
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self.assertEqual(Computer.objects.get(device_id=laptop_id).ram_gb, 16)
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self.assertEqual(Computer.objects.get(device_id=laptop_id).cpu, "Core i5")
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self.assertEqual(Printer.objects.get(device_id=printer_id).wifi, "YES")
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self.assertEqual(str(Monitor.objects.get(device_id=screen_id).display_inches), "24.0")
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self.assertFalse(Computer.objects.filter(device_id=printer_id).exists())
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finally:
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MigrationExecutor(connection).migrate(LATEST)
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class DeviceTypeTableMigrationTests(TransactionTestCase):
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def test_existing_computers_move_to_their_own_tables(self):
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old = [("inventory", "0011_inspectionrecord_repairrecord")]
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executor = MigrationExecutor(connection)
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executor.migrate(old)
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try:
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apps = executor.loader.project_state(old).apps
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Choice = apps.get_model("inventory", "ChoiceValue")
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Device = apps.get_model("inventory", "Device")
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Computer = apps.get_model("inventory", "ComputerSpecification")
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status, _ = Choice.objects.get_or_create(kind="status", label="Eingang")
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ids = {}
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for index, label in enumerate(("Laptop", "Desktop", "AiO", "Sondergerät"), start=1):
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device_type, _ = Choice.objects.get_or_create(kind="device_type", label=label)
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device = Device.objects.create(number=92000 + index, status=status, device_type=device_type)
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Computer.objects.create(device_id=device.pk, cpu="Core i5", ram_gb=8, ssd_gb=256)
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ids[label] = device.pk
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MigrationExecutor(connection).migrate(LATEST)
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apps = MigrationExecutor(connection).loader.project_state(LATEST).apps
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self.assertEqual(apps.get_model("inventory", "LaptopSpecification").objects.get(device_id=ids["Laptop"]).ram_gb, 8)
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self.assertEqual(apps.get_model("inventory", "DesktopSpecification").objects.get(device_id=ids["Desktop"]).ssd_gb, 256)
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self.assertEqual(apps.get_model("inventory", "AllInOneSpecification").objects.get(device_id=ids["AiO"]).cpu, "Core i5")
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Computer = apps.get_model("inventory", "ComputerSpecification")
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self.assertFalse(Computer.objects.filter(device_id__in=ids.values()).exclude(device_id=ids["Sondergerät"]).exists())
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self.assertTrue(Computer.objects.filter(device_id=ids["Sondergerät"]).exists())
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finally:
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MigrationExecutor(connection).migrate(LATEST)
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