Fixed test.

Author: Tonye Jack

.envrc

@@ -1 +1 @@
-export ENV_DB=postgres,mysql
+export ENV_DB=postgres,mysql,sqlite3

.envrc.example

@@ -6,3 +6,4 @@ __pycache__/
 .nox/
 *.sqlite3
 status.json
+.envrc

.gitignore

@@ -32,7 +32,7 @@ clean-build: ## Clean project build artifacts.
 
 test:
 	@echo "Running `$(PYTHON_VERSION)` test..."
-	@$(MANAGE_PY) test --noinput --failfast
+	@$(MANAGE_PY) test -v 3 --noinput --failfast
 
 install: clean-build  ## Install project dependencies.
 	@echo "Installing project in dependencies..."

Makefile

@@ -3,7 +3,7 @@
 from django.db import migrations
 
 
-def non_null_count(values):
+def non_null_count(*values):
     none_values = [i for i in values if i == None]
 
     return len(none_values)

demo/migrations/0002_auto_20200218_0733.py

@@ -33,10 +33,14 @@ def apply(self, project_state, schema_editor, collect_sql=False):
                 operation.state_forwards(self.app_label, project_state)
             return project_state
 
-        return super().apply(project_state, schema_editor, collect_sql=collect_sql)
+        return super(Migration, self).apply(
+            project_state, schema_editor, collect_sql=collect_sql
+        )
 
     def unapply(self, project_state, schema_editor, collect_sql=False):
         if schema_editor.connection.alias == "mysql":
             return project_state
 
-        return super().unapply(project_state, schema_editor, collect_sql=collect_sql)
+        return super(Migration, self).unapply(
+            project_state, schema_editor, collect_sql=collect_sql
+        )

demo/migrations/0003_auto_20200222_0146.py

@@ -74,7 +74,7 @@
 
 # Database
 # https://docs.djangoproject.com/en/1.11/ref/settings/#databases
-TEST_ENV_DB = os.environ.get("ENV_DB", "").split(",")
+TEST_ENV_DB = [] if "ENV_DB" not in os.environ else os.environ["ENV_DB"].split(",")
 
 DATABASES = {
     "default": {
@@ -84,6 +84,12 @@
     }
 }
 
+if "sqlite3" in TEST_ENV_DB:
+    DATABASES["sqlite3"] = {
+        "ENGINE": "django.db.backends.sqlite3",
+        "NAME": ":memory:",
+        "TEST": {"DEPENDENCIES": []},
+    }
 
 if "postgres" in TEST_ENV_DB:
     DATABASES["postgres"] = {

django_check_constraint/settings.py

@@ -19,20 +19,21 @@
 
 @nox.session(python=["3.5", "3.6", "3.7", "3.8"])
 @nox.parametrize("django", ["2.2.10", "3.0", "3.0.1", "3.0.2", "3.0.3"])
-@nox.parametrize("database", ["postgres", "mysql"])
+@nox.parametrize("database", ["postgres", "mysql", "sqlite3"])
 def tests(session, django, database):
     if django.split(".")[0] == "3" and session.python == "3.5":
         session.skip("Python: {} and django: {}".format(session.python, django))
 
-    session.install(
-        *DB_PACKAGE[database][session.python],
-        env={
-            "LDFLAGS": "-L/usr/local/opt/[email protected]/lib",
-            "CPPFLAGS": "-I/usr/local/opt/[email protected]/include",
-        }
-    )
+    if database != "sqlite3":
+        session.install(
+            *DB_PACKAGE[database][session.python],
+            env={
+                "LDFLAGS": "-L/usr/local/opt/[email protected]/lib",
+                "CPPFLAGS": "-I/usr/local/opt/[email protected]/include",
+            }
+        )
     session.install("django=={}".format(django))
-    session.run("bash", "-c", "make test", env={"ENV_DB": database})
+    session.run("bash", "-c", "make test", external=True, env={"ENV_DB": database})
 
 
 @nox.session