Mono - How it works and write Junit Tests - Build Reactive API Using Spring Boot/Spring WebFlux

In this video, we will learn about how to write Junits for the Mono reactive type.

[alexsurya]

Where i am mistake bro why its not working. Showing this error msg bro Type mismatch: cannot convert from Flux<String> to Mono<String>


@Test
public void monoError() {
Mono<String> monoError =

}