diff --git a/lib/src/dbs/session.rs b/lib/src/dbs/session.rs
index dc9470e6..b012c441 100644
--- a/lib/src/dbs/session.rs
+++ b/lib/src/dbs/session.rs
@@ -70,6 +70,16 @@ impl Session {
 			..Session::default()
 		}
 	}
+	/// Set the selected namespace for the session
+	pub fn with_ns(mut self, ns: &str) -> Session {
+		self.ns = Some(ns.to_owned());
+		self
+	}
+	/// Set the selected database for the session
+	pub fn with_db(mut self, db: &str) -> Session {
+		self.db = Some(db.to_owned());
+		self
+	}
 	/// Retrieves the selected namespace
 	pub(crate) fn ns(&self) -> Option<Arc<String>> {
 		self.ns.to_owned().map(Arc::new)
diff --git a/lib/tests/field.rs b/lib/tests/field.rs
new file mode 100644
index 00000000..2229ebe1
--- /dev/null
+++ b/lib/tests/field.rs
@@ -0,0 +1,83 @@
+mod parse;
+use parse::Parse;
+use surrealdb::sql::Value;
+use surrealdb::Datastore;
+use surrealdb::Error;
+use surrealdb::Session;
+
+#[tokio::test]
+async fn field_definition_value_assert_failure() -> Result<(), Error> {
+	let sql = "
+		DEFINE TABLE person SCHEMAFULL;
+		DEFINE FIELD age ON person TYPE number ASSERT $value > 0;
+		DEFINE FIELD email ON person TYPE string ASSERT is::email($value);
+		DEFINE FIELD name ON person TYPE string VALUE $value OR 'No name';
+		CREATE person:test SET email = 'info@surrealdb.com', other = 'ignore';
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 5);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(
+		tmp.err(),
+		Some(e) if e.to_string() == "Found '0' for field 'age' but field must conform to: $value > 0"
+	));
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn field_definition_value_assert_success() -> Result<(), Error> {
+	let sql = "
+		DEFINE TABLE person SCHEMAFULL;
+		DEFINE FIELD age ON person TYPE number ASSERT $value > 0;
+		DEFINE FIELD email ON person TYPE string ASSERT is::email($value);
+		DEFINE FIELD name ON person TYPE string VALUE $value OR 'No name';
+		CREATE person:test SET email = 'info@surrealdb.com', other = 'ignore', age = 22;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 5);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{
+				id: person:test,
+				email: 'info@surrealdb.com',
+				age: 22,
+				name: 'No name',
+			}
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
diff --git a/lib/tests/insert.rs b/lib/tests/insert.rs
new file mode 100644
index 00000000..5d68ac29
--- /dev/null
+++ b/lib/tests/insert.rs
@@ -0,0 +1,138 @@
+mod parse;
+use parse::Parse;
+use surrealdb::sql::Value;
+use surrealdb::Datastore;
+use surrealdb::Error;
+use surrealdb::Session;
+
+#[tokio::test]
+async fn insert_statement_object_single() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test {
+			id: 'tester',
+			test: true,
+			something: 'other',
+		};
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, test: true, something: 'other' }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn insert_statement_object_multiple() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test [
+			{
+				id: 1,
+				test: true,
+				something: 'other',
+			},
+			{
+				id: 2,
+				test: false,
+				something: 'else',
+			},
+		];
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{ id: test:1, test: true, something: 'other' },
+			{ id: test:2, test: false, something: 'else' }
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn insert_statement_values_single() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test (id, test, something) VALUES ('tester', true, 'other');
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, test: true, something: 'other' }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn insert_statement_values_multiple() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test (id, test, something) VALUES (1, true, 'other'), (2, false, 'else');
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{ id: test:1, test: true, something: 'other' },
+			{ id: test:2, test: false, something: 'else' }
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn insert_statement_on_duplicate_key() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test (id, test, something) VALUES ('tester', true, 'other');
+		INSERT INTO test (id, test, something) VALUES ('tester', true, 'other') ON DUPLICATE KEY UPDATE something = 'else';
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 2);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, test: true, something: 'other' }]");
+	assert_eq!(tmp, val);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, test: true, something: 'else' }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn insert_statement_output() -> Result<(), Error> {
+	let sql = "
+		INSERT INTO test (id, test, something) VALUES ('tester', true, 'other') RETURN something;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ something: 'other' }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
diff --git a/lib/tests/parse.rs b/lib/tests/parse.rs
new file mode 100644
index 00000000..f5b34622
--- /dev/null
+++ b/lib/tests/parse.rs
@@ -0,0 +1,20 @@
+use surrealdb::sql::json;
+use surrealdb::sql::thing;
+use surrealdb::sql::Thing;
+use surrealdb::sql::Value;
+
+pub trait Parse<T> {
+	fn parse(val: &str) -> T;
+}
+
+impl Parse<Value> for Value {
+	fn parse(val: &str) -> Value {
+		json(val).unwrap()
+	}
+}
+
+impl Parse<Thing> for Thing {
+	fn parse(val: &str) -> Thing {
+		thing(val).unwrap()
+	}
+}
diff --git a/lib/tests/script.rs b/lib/tests/script.rs
new file mode 100644
index 00000000..0b7a9971
--- /dev/null
+++ b/lib/tests/script.rs
@@ -0,0 +1,160 @@
+mod parse;
+use parse::Parse;
+use surrealdb::sql::Value;
+use surrealdb::Datastore;
+use surrealdb::Error;
+use surrealdb::Session;
+
+#[tokio::test]
+async fn script_function_simple() -> Result<(), Error> {
+	let sql = "
+		CREATE person:test SET scores = function() {
+			return [6.6, 8.4, 7.3].map(v => v * 10);
+		};
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: person:test, scores: [66, 84, 73] }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn script_function_context() -> Result<(), Error> {
+	let sql = "
+		CREATE film:test SET
+			ratings = [
+				{ rating: 6.3 },
+				{ rating: 8.7 },
+			],
+			display = function() {
+				return this.ratings.filter(r => {
+					return r.rating >= 7;
+				}).map(r => {
+					return { ...r, rating: Math.round(r.rating * 10) };
+				});
+			}
+		;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{
+				id: film:test,
+				ratings: [
+					{ rating: 6.3 },
+					{ rating: 8.7 },
+				],
+				display: [
+					{ rating: 87 },
+				]
+			}
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn script_function_arguments() -> Result<(), Error> {
+	let sql = "
+		LET $value = 'SurrealDB';
+		LET $words = ['awesome', 'advanced', 'cool'];
+		CREATE article:test SET summary = function($value, $words) {
+			return `${arguments[0]} is ${arguments[1].join(', ')}`;
+		};
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 3);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{
+				id: article:test,
+				summary: 'SurrealDB is awesome, advanced, cool',
+			}
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn script_function_types() -> Result<(), Error> {
+	let sql = "
+		CREATE article:test SET
+			created_at = function() {
+				return new Date('1995-12-17T03:24:00');
+			},
+			next_signin = function() {
+				return new Duration('1w2d6h');
+			},
+			manager = function() {
+				return new Record('user', 'joanna');
+			},
+			identifier = function() {
+				return new Uuid('03412258-988f-47cd-82db-549902cdaffe');
+			}
+		;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"[
+			{
+				id: article:test,
+				created_at: '1995-12-17T03:24:00Z',
+				next_signin: 1w2d6h,
+				manager: user:joanna,
+				identifier: '03412258-988f-47cd-82db-549902cdaffe',
+			}
+		]",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn script_function_module_os() -> Result<(), Error> {
+	let sql = "
+		CREATE platform:test SET version = function() {
+			const { release } = await import('os');
+			return release();
+		};
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 1);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	Ok(())
+}
diff --git a/lib/tests/strict.rs b/lib/tests/strict.rs
new file mode 100644
index 00000000..73a0864b
--- /dev/null
+++ b/lib/tests/strict.rs
@@ -0,0 +1,191 @@
+mod parse;
+use parse::Parse;
+use surrealdb::sql::Value;
+use surrealdb::Datastore;
+use surrealdb::Error;
+use surrealdb::Session;
+
+#[tokio::test]
+async fn strict_mode_no_namespace() -> Result<(), Error> {
+	let sql = "
+		-- DEFINE NAMESPACE test;
+		DEFINE DATABASE test;
+		DEFINE TABLE test;
+		DEFINE FIELD extra ON test VALUE true;
+		CREATE test:tester;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, true).await?;
+	assert_eq!(res.len(), 4);
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::NsNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::NsNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::NsNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::NsNotFound)));
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn strict_mode_no_database() -> Result<(), Error> {
+	let sql = "
+		DEFINE NAMESPACE test;
+		-- DEFINE DATABASE test;
+		DEFINE TABLE test;
+		DEFINE FIELD extra ON test VALUE true;
+		CREATE test:tester;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, true).await?;
+	assert_eq!(res.len(), 4);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::DbNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::DbNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::DbNotFound)));
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn strict_mode_no_table() -> Result<(), Error> {
+	let sql = "
+		DEFINE NAMESPACE test;
+		DEFINE DATABASE test;
+		-- DEFINE TABLE test;
+		DEFINE FIELD extra ON test VALUE true;
+		CREATE test:tester;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, true).await?;
+	assert_eq!(res.len(), 4);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::TbNotFound)));
+	//
+	let tmp = res.remove(0).result;
+	assert!(matches!(tmp.err(), Some(Error::TbNotFound)));
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn strict_mode_all_ok() -> Result<(), Error> {
+	let sql = "
+		DEFINE NAMESPACE test;
+		DEFINE DATABASE test;
+		DEFINE TABLE test;
+		DEFINE FIELD extra ON test VALUE true;
+		CREATE test:tester;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, true).await?;
+	assert_eq!(res.len(), 5);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, extra: true }]");
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}
+
+#[tokio::test]
+async fn loose_mode_all_ok() -> Result<(), Error> {
+	let sql = "
+		DEFINE FIELD extra ON test VALUE true;
+		CREATE test:tester;
+		INFO FOR KV;
+		INFO FOR NS;
+		INFO FOR DB;
+		INFO FOR TABLE test;
+	";
+	let dbs = Datastore::new("memory").await?;
+	let ses = Session::for_kv().with_ns("test").with_db("test");
+	let res = &mut dbs.execute(&sql, &ses, None, false).await?;
+	assert_eq!(res.len(), 6);
+	//
+	let tmp = res.remove(0).result;
+	assert!(tmp.is_ok());
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse("[{ id: test:tester, extra: true }]");
+	assert_eq!(tmp, val);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"{
+			ns: { test: 'DEFINE NAMESPACE test' },
+		}",
+	);
+	assert_eq!(tmp, val);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"{
+			db: { test: 'DEFINE DATABASE test' },
+			nl: {},
+			nt: {},
+		}",
+	);
+	assert_eq!(tmp, val);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"{
+			dl: {},
+			dt: {},
+			sc: {},
+			tb: { test: 'DEFINE TABLE test SCHEMALESS PERMISSIONS NONE' },
+		}",
+	);
+	assert_eq!(tmp, val);
+	//
+	let tmp = res.remove(0).result?;
+	let val = Value::parse(
+		"{
+			ev: {},
+			fd: { extra: 'DEFINE FIELD extra ON test VALUE true' },
+			ft: {},
+			ix: {},
+		}",
+	);
+	assert_eq!(tmp, val);
+	//
+	Ok(())
+}