+- org.testcontainers:testcontainers:jar:1.16.3:test
|  +- junit:junit:jar:4.13.2:test
|  |  \- org.hamcrest:hamcrest-core:jar:1.3:test

\- io.rest-assured:rest-assured:jar:4.4.0:test
   +- org.hamcrest:hamcrest:jar:2.1:test

...
    <dependency>
      <groupId>org.testcontainers</groupId>
      <artifactId>testcontainers</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>io.rest-assured</groupId>
      <artifactId>rest-assured</artifactId>
      <scope>test</scope>
    </dependency>
...

package org.acme;

import static io.restassured.RestAssured.given;
import static org.hamcrest.Matchers.containsStringIgnoringCase;

import org.junit.jupiter.api.Test;

import io.quarkus.test.junit.QuarkusTest;

@QuarkusTest
public class GreetingResourceTest {

    @Test
    public void testHelloEndpoint() {
        given()
                .when().get("/hello")
                .then()
                .statusCode(200)
                .body(containsStringIgnoringCase("Hello from RESTEasy Reactive"));
    }

}

[ERROR] org.acme.GreetingResourceTest.testHelloEndpoint  Time elapsed: 1.592 s  <<< ERROR!
java.lang.NoSuchMethodError: 'org.hamcrest.Matcher org.hamcrest.core.StringContains.containsStringIgnoringCase(java.lang.String)'
	at org.acme.GreetingResourceTest.testHelloEndpoint(GreetingResourceTest.java:19)