diff --git a/register_test.go b/register_test.go
new file mode 100644
index 0000000..64a1acd
--- /dev/null
+++ b/register_test.go
@@ -0,0 +1,15 @@
+package sql
+
+import (
+	"testing"
+
+	"github.com/grafana/xk6-sql/sql"
+	"github.com/stretchr/testify/require"
+	"go.k6.io/k6/ext"
+)
+
+func Test_register(t *testing.T) {
+	t.Parallel()
+
+	require.Contains(t, ext.Get(ext.JSExtension), sql.ImportPath)
+}
diff --git a/sql/sql_internal_test.go b/sql/sql_internal_test.go
new file mode 100644
index 0000000..05765a5
--- /dev/null
+++ b/sql/sql_internal_test.go
@@ -0,0 +1,28 @@
+package sql
+
+import (
+	"testing"
+
+	"github.com/grafana/sobek"
+	"github.com/stretchr/testify/require"
+)
+
+func TestOpen(t *testing.T) { //nolint: paralleltest
+	mod := New().NewModuleInstance(nil).(*module)
+
+	driver := RegisterDriver("ramsql")
+	require.NotNil(t, driver)
+
+	db, err := mod.Open(driver, "")
+
+	require.NoError(t, err)
+	require.NotNil(t, db)
+
+	_, err = mod.Open(sobek.New().ToValue("foo"), "testdb") // not a Symbol
+
+	require.Error(t, err)
+
+	_, err = mod.Open(sobek.NewSymbol("ramsql"), "testdb") // not a registered Symbol
+
+	require.Error(t, err)
+}
diff --git a/sqltest/sqltest_test.go b/sqltest/sqltest_test.go
new file mode 100644
index 0000000..d29e4de
--- /dev/null
+++ b/sqltest/sqltest_test.go
@@ -0,0 +1,22 @@
+package sqltest_test
+
+import (
+	_ "embed"
+	"testing"
+
+	"github.com/grafana/xk6-sql/sql"
+	"github.com/grafana/xk6-sql/sqltest"
+
+	_ "github.com/proullon/ramsql/driver"
+)
+
+//go:embed testdata/script.js
+var script string
+
+func TestRunScript(t *testing.T) {
+	t.Parallel()
+
+	sql.RegisterModule("ramsql")
+
+	sqltest.RunScript(t, "ramsql", "testdb", script)
+}
diff --git a/sqltest/testdata/script.js b/sqltest/testdata/script.js
new file mode 100644
index 0000000..90d0a15
--- /dev/null
+++ b/sqltest/testdata/script.js
@@ -0,0 +1,24 @@
+const db = sql.open(driver, connection);
+
+db.exec("CREATE TABLE test_table (id integer PRIMARY KEY AUTOINCREMENT, name varchar NOT NULL, value varchar);");
+
+for (let i = 0; i < 5; i++) {
+  db.exec("INSERT INTO test_table (name, value) VALUES ('name-" + i + "', 'value-" + i + "');");
+}
+
+let all_rows = db.query("SELECT * FROM test_table;");
+if (all_rows.length != 5) {
+  throw new Error("Expected all five rows to be returned; got " + all_rows.length);
+}
+
+let one_row = db.query("SELECT * FROM test_table WHERE name = $1;", "name-2");
+if (one_row.length != 1) {
+  throw new Error("Expected single row to be returned; got " + one_row.length);
+}
+
+let no_rows = db.query("SELECT * FROM test_table WHERE name = $1;", "bogus-name");
+if (no_rows.length != 0) {
+  throw new Error("Expected no rows to be returned; got " + no_rows.length);
+}
+
+db.close();