Testing camel-sql route with in-memory database not fetching results - unit-testing

Question

I have written the code using camel-sql which is working fine. Now I have to write test cases for the same. I have used in-memory database H2. I have initialized the database and assigned the datasource to sqlComponent.
// Setup code
#Override
protected JndiRegistry createRegistry() throws Exception {
JndiRegistry jndi = super.createRegistry();
// this is the database we create with some initial data for our unit test
database = new EmbeddedDatabaseBuilder()
.setType(EmbeddedDatabaseType.H2).addScript("createTableAndInsert.sql").build();
jndi.bind("myDataSource", database);
return jndi;
}
// Testcase code
#SuppressWarnings("unchecked")
#Test
public void testRoute() throws Exception {
Exchange receivedExchange = template.send("direct:myRoute", ExchangePattern.InOut ,exchange -> {
exchange.getIn().setHeader("ID", new Integer(1));
});
camelContext.start();
MyClass updatedEntity = (MyClass)jdbcTemplate.queryForObject("select * from MY_TABLE where id=?", new Long[] { 1l } ,
new RouteTest.CustomerRowMapper() );
// Here I can get the updatedEntity from jdbcTemplate
assertNotNull(receivedExchange);
assertNotNull(updatedEntity);
}
// Main code
from("direct:myRoute")
.routeId("pollDbRoute")
.transacted()
.to("sql:select * from MY_TABLE msg where msg.id = :#"+ID+"?dataSource=#myDataSource&outputType=SelectOne&outputClass=com.entity.MyClass")
.log(LoggingLevel.INFO,"Polled message from DB");
The problem is, as soon as the test case starts, it is saying
No bean could be found in the registry for: myDataSource of type: javax.sql.DataSource
I looked into camel-SQL component test cases and doing the same thing but the code is not able to find dataSource. Please help. Thanks in advance.

Answer 1

After spending a lot of time on this issue, I identified that H2 database was using JDBCUtils to fetch records and It was throwing ClassNotFoundException. I was getting it nowhere in Camel exception hierarchy because this exception was being suppressed and all I was getting a generic exception message. Here is the exception:
ClassNotFoundException: com.vividsolutions.jts.geom.Geometry
After searching for the issue I found out that It requires one more dependency. So I added it and it resolved the issue.
Issue URL: https://github.com/elastic/elasticsearch/issues/9891
Dependency: https://mvnrepository.com/artifact/com.vividsolutions/jts-core/1.14.0