diff --git a/quarkus-school-timetabling/pom.xml b/quarkus-school-timetabling/pom.xml
index 036d16d3..b668e813 100644
--- a/quarkus-school-timetabling/pom.xml
+++ b/quarkus-school-timetabling/pom.xml
@@ -75,6 +75,11 @@
       <artifactId>quarkus-junit5</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>io.quarkus</groupId>
+      <artifactId>quarkus-junit5-internal</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>io.quarkus</groupId>
       <artifactId>quarkus-test-h2</artifactId>
diff --git a/quarkus-school-timetabling/src/test/java/org/acme/schooltimetabling/devui/OptaPlannerDevUITest.java b/quarkus-school-timetabling/src/test/java/org/acme/schooltimetabling/devui/OptaPlannerDevUITest.java
new file mode 100644
index 00000000..6e8c2a7a
--- /dev/null
+++ b/quarkus-school-timetabling/src/test/java/org/acme/schooltimetabling/devui/OptaPlannerDevUITest.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2021 Red Hat, Inc. and/or its affiliates.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.acme.schooltimetabling.devui;
+
+import groovy.namespace.QName;
+import groovy.xml.XmlParser;
+import io.quarkus.test.QuarkusDevModeTest;
+import io.restassured.RestAssured;
+import org.jboss.shrinkwrap.api.ShrinkWrap;
+import org.jboss.shrinkwrap.api.spec.JavaArchive;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.RegisterExtension;
+import groovy.util.Node;
+import org.xml.sax.SAXException;
+
+import javax.xml.parsers.ParserConfigurationException;
+
+import java.io.IOException;
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class OptaPlannerDevUITest {
+    @RegisterExtension
+    static final QuarkusDevModeTest config = new QuarkusDevModeTest()
+            .setArchiveProducer(() -> ShrinkWrap.create(JavaArchive.class)
+                    .addPackages(true, "org.acme.schooltimetabling"));
+
+    static final String OPTAPLANNER_DEV_UI_BASE_URL = "/q/dev/org.optaplanner.optaplanner-quarkus/";
+
+    public static String getPage(String pageName) {
+        return OPTAPLANNER_DEV_UI_BASE_URL + pageName;
+    }
+
+    @Test
+    public void testSolverConfigPage() throws ParserConfigurationException, SAXException, IOException {
+        String body = RestAssured.get(getPage("solverConfig"))
+                .then()
+                .extract()
+                .body()
+                .asPrettyString();
+        XmlParser xmlParser = new XmlParser();
+        Node node = xmlParser.parseText(body);
+        String solverConfig = ((Node) (node.getAt(QName.valueOf("body"))
+                .getAt(QName.valueOf("div"))
+                .getAt(QName.valueOf("div"))
+                .get(0))).text();
+        assertThat(solverConfig).isEqualToIgnoringWhitespace(
+                "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+                + "<!--Properties that can be set at runtime are not included-->"
+                + "<solver>"
+                +   "<solutionClass>org.acme.schooltimetabling.domain.TimeTable</solutionClass>"
+                +   "<entityClass>org.acme.schooltimetabling.domain.Lesson</entityClass>"
+                +   "<domainAccessType>GIZMO</domainAccessType>"
+                +   "<scoreDirectorFactory>"
+                +     "<constraintProviderClass>org.acme.schooltimetabling.solver.TimeTableConstraintProvider</constraintProviderClass>"
+                +   "</scoreDirectorFactory>"
+                + "</solver>"
+        );
+    }
+
+    @Test
+    public void testModelPage() throws ParserConfigurationException, SAXException, IOException {
+        String body = RestAssured.get(getPage("model"))
+                .then()
+                .extract()
+                .body()
+                .asPrettyString();
+        XmlParser xmlParser = new XmlParser();
+        Node node = xmlParser.parseText(body);
+        String model = ((Node) (node.getAt(QName.valueOf("body"))
+                .getAt(QName.valueOf("div"))
+                .getAt(QName.valueOf("div"))
+                .get(0))).toString();
+        assertThat(model).contains("value=[Solution: org.acme.schooltimetabling.domain.TimeTable]");
+        assertThat(model).contains("value=[Entity: org.acme.schooltimetabling.domain.Lesson]");
+        assertThat(model).contains("value=[Genuine Variables]]]]]], tbody[attributes={}; value=["
+                + "tr[attributes={}; value=[td[attributes={colspan=1, rowspan=1}; value=[room]]]], "
+                + "tr[attributes={}; value=[td[attributes={colspan=1, rowspan=1}; value=[timeslot]]]]]]]]");
+        assertThat(model).contains("value=[th[attributes={colspan=1, rowspan=1, scope=col}; value=[Shadow Variables]]]]]], tbody[attributes={}; value=[]]]");
+    }
+
+    @Test
+    public void testConstraintsPage() throws ParserConfigurationException, SAXException, IOException {
+        String body = RestAssured.get(getPage("constraints"))
+                .then()
+                .extract()
+                .body()
+                .asPrettyString();
+        XmlParser xmlParser = new XmlParser();
+        Node node = xmlParser.parseText(body);
+        String constraints = ((Node) (node.getAt(QName.valueOf("body"))
+                .getAt(QName.valueOf("div"))
+                .getAt(QName.valueOf("table"))
+                .get(0))).text();
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Room conflict");
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Teacher conflict");
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Student group conflict");
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Teacher room stability");
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Teacher time efficiency");
+        assertThat(constraints).contains("org.acme.schooltimetabling.domain/Student group subject variety");
+    }
+}