Add test for SpringBoot 27-30 migration: update properties in multimodule project

applications/spring-shell/src/test/java/org/springframework/sbm/BootUpgrade_27_30_MultiModule_IntegrationTest.java

@@ -48,9 +48,97 @@ void migrateMultiModuleApplication() {
         buildProject();
 
         verifyParentPomVersion();
+        verifyYamlConfigurationUpdate();
+        verifyPropertyConfigurationUpdate();
         verifyEhCacheVersionIsUpgraded();
     }
 
+    private void verifyYamlConfigurationUpdate() {
+        String micrometerClass = loadFile(Path.of("spring-app/src/main/resources/application.yaml"));
+        assertThat(micrometerClass).isEqualTo(
+                "spring:\n" +
+                        "  datasource:\n" +
+                        "    url: jdbc:h2:mem:testdb\n" +
+                        "    driverClassName: org.h2.Driver\n" +
+                        "  jpa:\n" +
+                        "    database-platform: org.hibernate.dialect.H2Dialect\n" +
+                        "  elasticsearch:\n" +
+                        "    connection-timeout: '1'\n" +
+                        "    password: testpassword\n" +
+                        "    socket-timeout: '2'\n" +
+                        "    restclient.sniffer.delay-after-failure: '3'\n" +
+                        "    restclient.sniffer.interval: '4'\n" +
+                        "    username: username\n" +
+                        "  security:\n" +
+                        "    saml2:\n" +
+                        "      relyingparty:\n" +
+                        "        registration:\n" +
+                        "          idpone:\n" +
+                        "            assertingparty:\n" +
+                        "              verification:\n" +
+                        "                credentials:\n" +
+                        "                  certificate-location: classpath:saml/idpone.crt\n" +
+                        "              entity-id: https://idpone.com\n" +
+                        "              sso-url: https://idpone.com\n" +
+                        "  elasticsearch.connection-timeout: '1000'\n" +
+                        "  elasticsearch.webclient.max-in-memory-size: '122'\n" +
+                        "  elasticsearch.password: abc\n" +
+                        "  elasticsearch.socket-timeout: '100'\n" +
+                        "  elasticsearch.username: testUser\n" +
+                        "  sql.init.data-locations: testdata\n" +
+                        "  sql.init.password: password\n" +
+                        "  sql.init.username: sa\n" +
+                        "  sql.init.mode: mode1\n" +
+                        "  sql.init.platform: pls\n" +
+                        "  sql.init.schema-locations: table1\n" +
+                        "  sql.init.password: password\n" +
+                        "  sql.init.username: sa\n" +
+                        "  sql.init.separator: k\n" +
+                        "  sql.init.encoding: UTF-8\n" +
+                        "server.reactive.session.cookie.same-site: 'true'\n");
+    }
+
+    private void verifyPropertyConfigurationUpdate() {
+        String applicationProperties = loadFile(Path.of("spring-app/src/main/resources/application.properties"));
+        assertThat(applicationProperties).isEqualTo(
+                "spring.elasticsearch.connection-timeout=1000\n" +
+                        "spring.elasticsearch.webclient.max-in-memory-size=122\n" +
+                        "spring.elasticsearch.password=abc\n" +
+                        "spring.elasticsearch.socket-timeout=100\n" +
+                        "spring.elasticsearch.username=testUser\n" +
+                        "\n" +
+                        "spring.sql.init.data-locations=testdata\n" +
+                        "spring.sql.init.password=password\n" +
+                        "spring.sql.init.username=username\n" +
+                        "spring.sql.init.mode=mode1\n" +
+                        "spring.sql.init.platform=pls\n" +
+                        "spring.sql.init.schema-locations=table1\n" +
+                        "spring.sql.init.password=password2\n" +
+                        "spring.sql.init.username=username2\n" +
+                        "spring.sql.init.separator=k\n" +
+                        "spring.sql.init.encoding=UTF-8\n" +
+                        "\n" +
+                        "spring.elasticsearch.connection-timeout=1\n" +
+                        "spring.elasticsearch.password=testpassword\n" +
+                        "spring.elasticsearch.socket-timeout=2\n" +
+                        "spring.elasticsearch.restclient.sniffer.delay-after-failure=3\n" +
+                        "spring.elasticsearch.restclient.sniffer.interval=4\n" +
+                        "spring.elasticsearch.username=username\n" +
+                        "\n" +
+                        "spring.security.saml2.relyingparty.registration.idpone.assertingparty.entity-id=https://idpone.com\n" +
+                        "spring.security.saml2.relyingparty.registration.idpone.assertingparty.sso-url=https://idpone.com\n" +
+                        "spring.security.saml2.relyingparty.registration.idpone.assertingparty.verification.credentials.certificate-location=classpath:saml/idpone.crt\n" +
+                        "\n" +
+                        "server.reactive.session.cookie.same-site=true\n" +
+                        "\n" +
+                        "spring.datasource.url=jdbc:h2:mem:testdb\n" +
+                        "spring.datasource.driverClassName=org.h2.Driver\n" +
+                        "spring.datasource.username=sa\n" +
+                        "spring.datasource.password=password\n" +
+                        "spring.jpa.database-platform=org.hibernate.dialect.H2Dialect\n");
+
+    }
+
     private void verifyEhCacheVersionIsUpgraded() {
         Optional<Dependency> ehcacheResult = getDependencyByArtifactId("ehcache", "spring-app/");