Migrations: Add `resource_meta` field to `resource_categories` table

2 files changed, 94 insertions, 0 deletions

diff --git a/migrations/auth/20221109_01_HbD5F-add-resource-meta-field-to-resource-categories-field.py b/migrations/auth/20221109_01_HbD5F-add-resource-meta-field-to-resource-categories-field.py
new file mode 100644
index 0000000..6c829b1
--- /dev/null
+++ b/migrations/auth/20221109_01_HbD5F-add-resource-meta-field-to-resource-categories-field.py
@@ -0,0 +1,17 @@
+"""
+Add 'resource_meta' field to 'resource_categories' field.
+"""
+
+from yoyo import step
+
+__depends__ = {'20221108_04_CKcSL-init-data-in-resource-categories-table'}
+
+steps = [
+    step(
+        """
+        ALTER TABLE resource_categories
+        ADD COLUMN
+            resource_meta TEXT NOT NULL DEFAULT '[]'
+        """,
+        "ALTER TABLE resource_categories DROP COLUMN resource_meta")
+]
diff --git a/tests/unit/auth/test_migration_add_resource_meta_field_to_resources_categories_table.py b/tests/unit/auth/test_migration_add_resource_meta_field_to_resources_categories_table.py
new file mode 100644
index 0000000..43ee88f
--- /dev/null
+++ b/tests/unit/auth/test_migration_add_resource_meta_field_to_resources_categories_table.py
@@ -0,0 +1,77 @@
+"""Test migration adding the `resource_meta` field to `resource_categories` table."""
+from contextlib import closing
+
+import pytest
+import sqlite3
+
+from gn3.migrations import get_migration, apply_migrations, rollback_migrations
+from tests.unit.auth.conftest import (
+    migrations_up_to, apply_single_migration, rollback_single_migration)
+
+migration_path = "migrations/auth/20221109_01_HbD5F-add-resource-meta-field-to-resource-categories-field.py"
+
+def __has_resource_meta(value: str):
+    return value.find("resource_meta TEXT") >= 0
+
+@pytest.mark.unit_test
+def test_apply_add_resource_meta(auth_migrations_dir, auth_testdb_path, backend):
+    older_migrations = migrations_up_to(migration_path, auth_migrations_dir)
+    the_migration = get_migration(migration_path)
+    apply_migrations(backend, older_migrations)
+    with closing(sqlite3.connect(auth_testdb_path)) as conn, closing(conn.cursor()) as cursor:
+        cursor.execute(
+            "SELECT sql FROM sqlite_schema WHERE name=?",
+            ("resource_categories",))
+        results_before_migration = cursor.fetchone()
+        apply_single_migration(backend, the_migration)
+        cursor.execute(
+            "SELECT sql FROM sqlite_schema WHERE name=?",
+            ("resource_categories",))
+        results_after_migration = cursor.fetchone()
+
+    rollback_migrations(backend, older_migrations + [the_migration])
+
+    assert not any(
+        [__has_resource_meta(line.strip())
+         for line in results_before_migration[0].split("\n")]
+    ), "`resource_meta` field exists in table before migration."
+    assert any(
+        [__has_resource_meta(line.strip())
+         for line in results_after_migration[0].split("\n")]
+    ), "Couldn't find `resource_meta` field in table"
+
+@pytest.mark.unit_test
+def test_rollback_add_resource_meta(auth_migrations_dir, auth_testdb_path, backend):
+    older_migrations = migrations_up_to(migration_path, auth_migrations_dir)
+    the_migration = get_migration(migration_path)
+    apply_migrations(backend, older_migrations)
+    with closing(sqlite3.connect(auth_testdb_path)) as conn, closing(conn.cursor()) as cursor:
+        cursor.execute(
+            "SELECT sql FROM sqlite_schema WHERE name=?",
+            ("resource_categories",))
+        results_before_migration = cursor.fetchone()
+        apply_single_migration(backend, the_migration)
+        cursor.execute(
+            "SELECT sql FROM sqlite_schema WHERE name=?",
+            ("resource_categories",))
+        results_after_migration = cursor.fetchone()
+        rollback_single_migration(backend, the_migration)
+        cursor.execute(
+            "SELECT sql FROM sqlite_schema WHERE name=?",
+            ("resource_categories",))
+        results_after_rollback = cursor.fetchone()
+
+    rollback_migrations(backend, older_migrations)
+
+    assert not any ([
+        __has_resource_meta(line.strip())
+        for line in results_before_migration[0].split("\n")]
+    ), "`resource_meta` field exists in table before migration."
+    assert any([
+        __has_resource_meta(line.strip())
+        for line in results_after_migration[0].split("\n")]
+    ), "Couldn't find `resource_meta` field in table"
+    assert not any([
+        __has_resource_meta(line.strip())
+        for line in results_after_rollback[0].split("\n")]
+    ), "`resource_meta` field exists in table after rollback."