2 files changed, 53 insertions, 0 deletions
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/__init__.py
diff --git a/tests/test_db.py b/tests/test_db.py
new file mode 100644
index 0000000..d1b269a
--- /dev/null
+++ b/tests/test_db.py
@@ -0,0 +1,53 @@
+import pytest
+
+from paste import db
+
+
+@pytest.fixture
+def unmigrated_conn():
+    with db.connect(":memory:", migrations=None) as conn:
+        yield conn
+
+
+@pytest.fixture
+def conn():
+    with db.connect(":memory:") as conn:
+        yield conn
+
+
+def test_connect_succeeds(conn):
+    _ = conn
+    pass
+
+
+def test_migration_succeeds(unmigrated_conn):
+    conn = unmigrated_conn
+    assert db.get_version(conn) == 0
+    (schema_count,) = conn.execute("SELECT COUNT(*) FROM sqlite_schema").fetchone()
+    assert schema_count == 0
+    db.migrate(conn, db.migrations)
+    assert db.get_version(conn) == 1
+    (schema_count,) = conn.execute("SELECT COUNT(*) FROM sqlite_schema").fetchone()
+    assert schema_count == 7
+
+
+hash_testdata = [
+    ("", "", True),
+    (b"", b"", True),
+    ("a", "a", True),
+    (b"a", b"a", True),
+    ("a", "", False),
+    ("a", "A", False),
+    ("a", "b", False),
+    ("a", "aa", False),
+    (b"a", "a", True),
+    (b"a", "A", False),
+]
+
+
+@pytest.mark.parametrize("a,b,expected", hash_testdata)
+def test_hash_behaves_normally(unmigrated_conn, a, b, expected):
+    (res,) = unmigrated_conn.execute(
+        "SELECT DATA_HASH(?) == DATA_HASH(?)", (a, b)
+    ).fetchone()
+    assert res == (1 if expected else 0)