-- simple enum validation
-- one of the enum is valid
SELECT is_jsonb_valid('{"enum":[1,2,3]}', '1');
 is_jsonb_valid 
----------------
 t
(1 row)

-- something else is invalid
SELECT is_jsonb_valid('{"enum":[1,2,3]}', '4');
 is_jsonb_valid 
----------------
 f
(1 row)

-- heterogeneous enum validation
-- one of the enum is valid
SELECT is_jsonb_valid('{"enum":[6,"foo",[],true,{"foo":12}]}', '[]');
 is_jsonb_valid 
----------------
 t
(1 row)

-- something else is invalid
SELECT is_jsonb_valid('{"enum":[6,"foo",[],true,{"foo":12}]}', 'null');
 is_jsonb_valid 
----------------
 f
(1 row)

-- objects are deep compared
SELECT is_jsonb_valid('{"enum":[6,"foo",[],true,{"foo":12}]}', '{"foo":false}');
 is_jsonb_valid 
----------------
 f
(1 row)

-- enums in properties
-- both properties are valid
SELECT is_jsonb_valid('{"type":"object","properties":{"foo":{"enum":["foo"]},"bar":{"enum":["bar"]}},"required":["bar"]}', '{"foo":"foo","bar":"bar"}');
 is_jsonb_valid 
----------------
 t
(1 row)

-- missing optional property is valid
SELECT is_jsonb_valid('{"type":"object","properties":{"foo":{"enum":["foo"]},"bar":{"enum":["bar"]}},"required":["bar"]}', '{"bar":"bar"}');
 is_jsonb_valid 
----------------
 t
(1 row)

-- missing required property is invalid
SELECT is_jsonb_valid('{"type":"object","properties":{"foo":{"enum":["foo"]},"bar":{"enum":["bar"]}},"required":["bar"]}', '{"foo":"foo"}');
 is_jsonb_valid 
----------------
 f
(1 row)

-- missing all properties is invalid
SELECT is_jsonb_valid('{"type":"object","properties":{"foo":{"enum":["foo"]},"bar":{"enum":["bar"]}},"required":["bar"]}', '{}');
 is_jsonb_valid 
----------------
 f
(1 row)