start aux snapshots

tests/test-auxiliary.py

@@ -0,0 +1,79 @@
+import sqlite3
+from collections import OrderedDict
+
+
+def test_constructor_limit(db, snapshot):
+    assert exec(
+        db,
+        f"""
+        create virtual table v using vec0(
+          {",".join([f"+aux{x} integer" for x in range(17)])}
+          v float[1]
+        )
+      """,
+    ) == snapshot(name="max 16 auxiliary columns")
+
+
+def test_normal(db, snapshot):
+    db.execute(
+        "create virtual table v using vec0(a float[1], +name text, chunk_size=8)"
+    )
+    assert exec(db, "select * from sqlite_master order by name") == snapshot(
+        name="sqlite_master"
+    )
+
+    db.execute("insert into v(a, name) values (?, ?)", [b"\x11\x11\x11\x11", "alex"])
+    db.execute("insert into v(a, name) values (?, ?)", [b"\x22\x22\x22\x22", "brian"])
+    db.execute("insert into v(a, name) values (?, ?)", [b"\x33\x33\x33\x33", "craig"])
+
+    assert exec(db, "select * from v") == snapshot()
+    assert vec0_shadow_table_contents(db, "v") == snapshot()
+
+
+def test_types(db, snapshot):
+    pass
+
+
+def test_updates(db, snapshot):
+    pass
+
+
+def test_deletes(db, snapshot):
+    pass
+
+
+def test_knn(db, snapshot):
+    pass
+
+
+def exec(db, sql, parameters=[]):
+    try:
+        rows = db.execute(sql, parameters).fetchall()
+    except (sqlite3.OperationalError, sqlite3.DatabaseError) as e:
+        return {
+            "error": e.__class__.__name__,
+            "message": str(e),
+        }
+    a = []
+    for row in rows:
+        o = OrderedDict()
+        for k in row.keys():
+            o[k] = row[k]
+        a.append(o)
+    result = OrderedDict()
+    result["sql"] = sql
+    result["rows"] = a
+    return result
+
+
+def vec0_shadow_table_contents(db, v):
+    shadow_tables = [
+        row[0]
+        for row in db.execute(
+            "select name from sqlite_master where name like ? order by 1", [f"{v}_%"]
+        ).fetchall()
+    ]
+    o = {}
+    for shadow_table in shadow_tables:
+        o[shadow_table] = exec(db, f"select * from {shadow_table}")
+    return o