test: add htmlunit based test for LoginController

build.gradle.kts

@@ -88,6 +88,7 @@ dependencies {
     integrationTestImplementation("org.testcontainers:junit-jupiter")
     integrationTestImplementation("org.testcontainers:postgresql")
     integrationTestImplementation("com.tngtech.archunit:archunit:${versions["archunit"]}")
+    integrationTestImplementation("net.sourceforge.htmlunit:htmlunit")
     // Override dependency version from org.testcontainers:junit-jupiter - CVE-2024-26308, CVE-2024-25710
     integrationTestImplementation("org.apache.commons:commons-compress:1.26.1")
 }

src/integrationTest/kotlin/dev/dnpm/etl/processor/web/LoginControllerTest.kt

@@ -0,0 +1,87 @@
+/*
+ * This file is part of ETL-Processor
+ *
+ * Copyright (c) 2024  Comprehensive Cancer Center Mainfranken, Datenintegrationszentrum Philipps-Universität Marburg and Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package dev.dnpm.etl.processor.web
+
+import com.gargoylesoftware.htmlunit.WebClient
+import com.gargoylesoftware.htmlunit.html.HtmlPage
+import dev.dnpm.etl.processor.config.AppConfiguration
+import dev.dnpm.etl.processor.config.AppSecurityConfiguration
+import dev.dnpm.etl.processor.services.TokenService
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+import org.mockito.junit.jupiter.MockitoExtension
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.boot.test.mock.mockito.MockBean
+import org.springframework.test.context.ContextConfiguration
+import org.springframework.test.context.TestPropertySource
+import org.springframework.test.context.junit.jupiter.SpringExtension
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.get
+import org.springframework.test.web.servlet.htmlunit.MockMvcWebClientBuilder
+
+@WebMvcTest(controllers = [LoginController::class])
+@ExtendWith(value = [MockitoExtension::class, SpringExtension::class])
+@ContextConfiguration(
+    classes = [
+        LoginController::class,
+        AppConfiguration::class,
+        AppSecurityConfiguration::class
+    ]
+)
+@TestPropertySource(
+    properties = [
+        "app.pseudonymize.generator=BUILDIN",
+        "app.security.admin-user=admin",
+        "app.security.admin-password={noop}very-secret",
+        "app.security.enable-tokens=true"
+    ]
+)
+@MockBean(
+    TokenService::class,
+)
+class LoginControllerTest {
+
+    private lateinit var mockMvc: MockMvc
+    private lateinit var webClient: WebClient
+
+    @BeforeEach
+    fun setup(@Autowired mockMvc: MockMvc) {
+        this.mockMvc = mockMvc
+        this.webClient = MockMvcWebClientBuilder.mockMvcSetup(mockMvc).build()
+    }
+
+    @Test
+    fun testShouldRequestLoginPage() {
+        mockMvc.get("/login").andExpect {
+            status { isOk() }
+        }
+    }
+
+    @Test
+    fun testShouldShowLoginForm() {
+        val page = webClient.getPage<HtmlPage>("http://localhost/login")
+        assertThat(
+            page.getElementsByTagName("main").first().firstElementChild.getAttribute("class")
+        ).isEqualTo("login-form")
+    }
+}