Refs #25979 -- Dropped compatiblity for running tests on PostgreSQL < 9.2.

tests/postgres_tests/migrations/0002_create_test_models.py

@@ -141,9 +141,6 @@ class Migration(migrations.Migration):
                 ('when', models.DateTimeField(null=True, default=None)),
             ]
         ),
-    ]
-
-    pg_92_operations = [
         migrations.CreateModel(
             name='RangesModel',
             fields=[
@@ -199,8 +196,6 @@ class Migration(migrations.Migration):
         except AttributeError:
             pass  # We are probably not on PostgreSQL
         else:
-            if PG_VERSION >= 90200:
-                self.operations = self.operations + self.pg_92_operations
             if PG_VERSION >= 90400:
                 self.operations = self.operations + self.pg_94_operations
         return super(Migration, self).apply(project_state, schema_editor, collect_sql)

tests/postgres_tests/models.py

@@ -52,8 +52,6 @@ class TextFieldModel(models.Model):
     field = models.TextField()
 
 
-# Only create this model for postgres >= 9.2
-if connection.vendor == 'postgresql' and connection.pg_version >= 90200:
 class RangesModel(PostgreSQLModel):
     ints = IntegerRangeField(blank=True, null=True)
     bigints = BigIntegerRangeField(blank=True, null=True)
@@ -61,6 +59,7 @@ if connection.vendor == 'postgresql' and connection.pg_version >= 90200:
     timestamps = DateTimeRangeField(blank=True, null=True)
     dates = DateRangeField(blank=True, null=True)
 
+
 class RangeLookupsModel(PostgreSQLModel):
     parent = models.ForeignKey(RangesModel, models.SET_NULL, blank=True, null=True)
     integer = models.IntegerField(blank=True, null=True)
@@ -69,14 +68,6 @@ if connection.vendor == 'postgresql' and connection.pg_version >= 90200:
     timestamp = models.DateTimeField(blank=True, null=True)
     date = models.DateField(blank=True, null=True)
 
-else:
-    # create an object with this name so we don't have failing imports
-    class RangesModel(object):
-        pass
-
-    class RangeLookupsModel(object):
-        pass
-
 
 # Only create this model for postgres >= 9.4
 if connection.vendor == 'postgresql' and connection.pg_version >= 90400:

tests/postgres_tests/test_ranges.py

@@ -1,12 +1,10 @@
 import datetime
 import json
-import unittest
 
 from django import forms
 from django.core import exceptions, serializers
-from django.db import connection
 from django.db.models import F
-from django.test import TestCase, override_settings
+from django.test import override_settings
 from django.utils import timezone
 
 from . import PostgreSQLTestCase
@@ -22,18 +20,7 @@ except ImportError:
     pass
 
 
-def skipUnlessPG92(test):
+class TestSaveLoad(PostgreSQLTestCase):
-    try:
-        PG_VERSION = connection.pg_version
-    except AttributeError:
-        PG_VERSION = 0
-    if PG_VERSION < 90200:
-        return unittest.skip('PostgreSQL >= 9.2 required')(test)
-    return test
-
-
-@skipUnlessPG92
-class TestSaveLoad(TestCase):
 
     def test_all_fields(self):
         now = timezone.now()
@@ -94,8 +81,7 @@ class TestSaveLoad(TestCase):
         self.assertIsNone(loaded.ints)
 
 
-@skipUnlessPG92
+class TestQuerying(PostgreSQLTestCase):
-class TestQuerying(TestCase):
 
     @classmethod
     def setUpTestData(cls):
@@ -198,8 +184,7 @@ class TestQuerying(TestCase):
         )
 
 
-@skipUnlessPG92
+class TestQueryingWithRanges(PostgreSQLTestCase):
-class TestQueryingWithRanges(TestCase):
     def test_date_range(self):
         objs = [
             RangeLookupsModel.objects.create(date='2015-01-01'),
@@ -288,8 +273,7 @@ class TestQueryingWithRanges(TestCase):
         )
 
 
-@skipUnlessPG92
+class TestSerialization(PostgreSQLTestCase):
-class TestSerialization(TestCase):
     test_data = (
         '[{"fields": {"ints": "{\\"upper\\": \\"10\\", \\"lower\\": \\"0\\", '
         '\\"bounds\\": \\"[)\\"}", "floats": "{\\"empty\\": true}", '