diff --git a/tests/test_get.py b/tests/test_get.py
new file mode 100644
index 0000000..0b2d714
--- /dev/null
+++ b/tests/test_get.py
@@ -0,0 +1,22 @@
+from sqlite_utils.db import Database, RowNotFound
+import pytest
+
+
+def test_get_single_pk(fresh_db):
+    cleo = {"id": 1, "name": "Cleo", "age": 4}
+    table = fresh_db["dogs"].insert(cleo, pk="id")
+    with pytest.raises(RowNotFound):
+        table.get(2)
+    with pytest.raises(RowNotFound):
+        table.get(None)
+    assert cleo == table.get(1)
+
+
+def test_get_compound_pk(fresh_db):
+    cleo = {"id1": 1, "id2": 1, "name": "Cleo", "age": 4}
+    table = fresh_db["dogs"].insert(cleo, pk=("id1", "id2"))
+    with pytest.raises(RowNotFound):
+        table.get(2)
+    with pytest.raises(RowNotFound):
+        table.get([2, 1])
+    assert cleo == table.get([1, 1])
diff --git a/tests/test_update.py b/tests/test_update.py
new file mode 100644
index 0000000..45018da
--- /dev/null
+++ b/tests/test_update.py
@@ -0,0 +1,9 @@
+from sqlite_utils.db import Database
+
+
+def test_update(fresh_db):
+    cleo = {"id": 1, "name": "Cleo", "age": 4}
+    fresh_db["dogs"].insert(cleo, pk="id")
+    assert [cleo] == list(fresh_db["dogs"].rows)
+    fresh_db["dogs"].update(1, {"age": 5})
+    assert [{"id": 1, "name": "Cleo", "age": 5}] == list(fresh_db["dogs"].rows)