feature: add Page Controller pattern (#2202)

* feat: create page controller

* add test

* add documentation

* fix: delete img file

* fix: modify App, SignupMode, UserController, pom.xml, and Readme

* fix: modify MVC files on page controller

* fix: modify readme file

page-controller/src/main/java/com.iluwatar.page.controller/App.java

@@ -0,0 +1,48 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Page Controller pattern is utilized when we want to simplify relationship in a dynamic website.
+ * It is an approach of one front page leading to one logical file that handles HTTP requests and actions.
+ * In this example, we build a website with signup page handling an input form with Signup Controller, Signup View, and Signup Model
+ * and after signup, it is redirected to a user page handling with User Controller, User View, and User Model.
+*/
+@Slf4j
+@SpringBootApplication
+public class App {
+  /**
+   * Program entry point.
+   *
+   * @param args command line args
+   */
+  public static void main(final String[] args) {
+    SpringApplication.run(App.class, args);
+  }
+}

page-controller/src/main/java/com.iluwatar.page.controller/SignupController.java

@@ -0,0 +1,68 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+
+/**
+ * Signup Controller.
+ */
+@Slf4j
+@Controller
+@Component
+public class SignupController {
+  SignupView view = new SignupView();
+  /**
+   * Signup Controller can handle http request and decide which model and view use.
+   */
+  SignupController() {
+  }
+
+  /**
+   * Handle http GET request.
+   */
+  @GetMapping("/signup")
+  public String getSignup() {
+    return view.display();
+  }
+
+  /**
+   * Handle http POST request and access model and view.
+   */
+  @PostMapping("/signup")
+  public String create(SignupModel form, RedirectAttributes redirectAttributes) {
+    LOGGER.info(form.getName());
+    LOGGER.info(form.getEmail());
+    redirectAttributes.addAttribute("name", form.getName());
+    redirectAttributes.addAttribute("email", form.getEmail());
+    redirectAttributes.addFlashAttribute("userInfo", form);
+    return view.redirect(form);
+  }
+}

page-controller/src/main/java/com.iluwatar.page.controller/SignupModel.java

@@ -0,0 +1,44 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.springframework.stereotype.Component;
+
+/**
+ * ignup model.
+ */
+@Component
+@Getter
+@Setter
+public class SignupModel {
+  private String name;
+  private String email;
+  private String password;
+
+  public SignupModel() {
+  }
+}

page-controller/src/main/java/com.iluwatar.page.controller/SignupView.java

@@ -0,0 +1,49 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * Signup View.
+ */
+@Slf4j
+public class SignupView {
+  public SignupView() {
+  }
+
+  public String display() {
+    LOGGER.info("display signup front page");
+    return "/signup";
+  }
+
+  /**
+   * redirect to user page.
+   */
+  public String redirect(SignupModel form) {
+    LOGGER.info("Redirect to user page with " + "name " + form.getName() + " email " + form.getEmail());
+    return "redirect:/user";
+  }
+}

page-controller/src/main/java/com.iluwatar.page.controller/UserController.java

@@ -0,0 +1,51 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * User Controller.
+ */
+@Slf4j
+@Controller
+public class UserController {
+  private final UserView view = new UserView();
+
+  public UserController() {}
+
+  /**
+   * Handle http GET request and access view and model.
+   */
+  @GetMapping("/user")
+  public String getUserPath(SignupModel form, Model model) {
+    model.addAttribute("name", form.getName());
+    model.addAttribute("email", form.getEmail());
+    return view.display(form);
+  }
+}

page-controller/src/main/java/com.iluwatar.page.controller/UserModel.java

@@ -0,0 +1,40 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.Getter;
+import lombok.Setter;
+
+/**
+ * User model.
+ */
+@Getter
+@Setter
+public class UserModel {
+  private String name;
+  private String email;
+  
+  public UserModel() {}
+}

page-controller/src/main/java/com.iluwatar.page.controller/UserView.java

@@ -0,0 +1,42 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * User view class generating html file.
+ */
+@Slf4j
+public class UserView {
+  /**
+   * displaying command to generate html.
+   * @param user model content.
+   */
+  public String display(SignupModel user) {
+    LOGGER.info("display user html" + " name " + user.getName() + " email " + user.getEmail());
+    return "/user";
+  }
+}

page-controller/src/main/resources/application.properties

@@ -0,0 +1,25 @@
+#
+# The MIT License
+# Copyright © 2014-2021 Ilkka Seppälä
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+#spring.thymeleaf.mode=HTML
+
+server.port=51515

page-controller/src/main/resources/templates/signup.html

@@ -0,0 +1,27 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  <title> Signup </title>
+</head>
+
+<body>
+<H1>Sign Up</H1>
+<form action="#" th:action="@{/signup}" method="post" th:object="${signup}">
+  <div style="margin:20px">
+    <label>Name</label>
+    <input type="text" id="name" name="name"/>
+  </div>
+  <div style="margin:20px">
+    <label>Email</label>
+    <input type="text" id="email" name="email"/>
+  </div>
+  <div style="margin:20px">
+    <label>password</label>
+    <input type="password" id="password" name="password"/>
+  </div>
+  <div style="margin:20px">
+    <input type="submit" value="Signup">
+  </div>
+</form>
+</body>

page-controller/src/main/resources/templates/user.html

@@ -0,0 +1,12 @@
+<!DOCTYPE HTML>
+<html xmlns:th="http://www.thymeleaf.org">
+<head>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  <title> User </title>
+</head>
+
+<body>
+<h1>Your Information</h1>
+<p>Name: <span th:text="${name}"></span></p>
+<p>Email: <span th:text="${email}"></span></p>
+</body>

page-controller/src/test/java/com/iluwatar/page/controller/AppTest.java

@@ -0,0 +1,38 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
+
+/**
+ * Application test
+ */
+public class AppTest {
+  @Test
+  void shouldExecuteApplicationWithoutException() {
+    assertDoesNotThrow(() -> App.main(new String[]{}));
+  }
+}

page-controller/src/test/java/com/iluwatar/page/controller/SignupControllerTest.java

@@ -0,0 +1,57 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.web.servlet.mvc.support.RedirectAttributes;
+import org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * Test for Signup Controller
+ */
+public class SignupControllerTest {
+
+  /**
+   * Verify if user can sign up and redirect to user page
+   */
+  @Test
+  void testSignup() {
+    var controller = new SignupController();
+    controller.getSignup();
+
+    RedirectAttributes redirectAttributes = new RedirectAttributesModelMap();
+    String redirectPath = controller.create(retrieveSignupData(), redirectAttributes);
+    assertEquals("redirect:/user", redirectPath);
+  }
+
+  public static SignupModel retrieveSignupData() {
+    SignupModel model = new SignupModel();
+    model.setName("Lily");
+    model.setEmail("lily@email.com");
+    model.setPassword("password1234");
+    return model;
+  }
+}

page-controller/src/test/java/com/iluwatar/page/controller/SignupModelTest.java

@@ -0,0 +1,63 @@
+/*
+ * This project is licensed under the MIT license. Module model-view-viewmodel is using ZK framework licensed under LGPL (see lgpl-3.0.txt).
+ *
+ * The MIT License
+ * Copyright © 2014-2022 Ilkka Seppälä
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package com.iluwatar.page.controller;
+
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+/**
+ * Test for Signup Model
+ */
+public class SignupModelTest {
+  /**
+   * Verify if a user can set a name properly
+   */
+  @Test
+  void testSetName() {
+    SignupModel model = new SignupModel();
+    model.setName("Lily");
+    assertEquals("Lily", model.getName());
+  }
+
+  /**
+   * Verify if a user can set an email properly
+   */
+  @Test
+  void testSetEmail() {
+    SignupModel model = new SignupModel();
+    model.setEmail("Lily@email");
+    assertEquals("Lily@email", model.getEmail());
+  }
+
+  /**
+   * Verify if a user can set a password properly
+   */
+  @Test
+  void testSetPassword() {
+    SignupModel model = new SignupModel();
+    model.setPassword("password1234");
+    assertEquals("password1234", model.getPassword());
+  }
+}

page-controller/src/test/java/com/iluwatar/page/controller/UserControllerTest.java

@@ -0,0 +1,36 @@
+package com.iluwatar.page.controller;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit.jupiter.SpringExtension;
+import org.springframework.test.web.servlet.MockMvc;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@ExtendWith(SpringExtension.class)
+@SpringBootTest
+@AutoConfigureMockMvc
+public class UserControllerTest {
+  private UserController userController;
+
+  @Autowired
+  MockMvc mockMvc;
+
+  /**
+   * Verify if view and model are directed properly
+   */
+  @Test
+  void testGetUserPath () throws Exception {
+        this.mockMvc.perform(get("/user")
+                .param("name", "Lily")
+                .param("email", "Lily@email.com"))
+        .andExpect(status().isOk())
+        .andExpect(model().attribute("name", "Lily"))
+        .andExpect(model().attribute("email", "Lily@email.com"))
+        .andReturn();
+  }
+}

page-controller/src/test/java/com/iluwatar/page/controller/UserModelTest.java

@@ -0,0 +1,27 @@
+package com.iluwatar.page.controller;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+public class UserModelTest {
+  /**
+   * Verify if a user can set a name properly
+   */
+  @Test
+  void testSetName() {
+    UserModel model = new UserModel();
+    model.setName("Lily");
+    assertEquals("Lily", model.getName());
+  }
+
+  /**
+   * Verify if a user can set an email properly
+   */
+  @Test
+  void testSetEmail() {
+    UserModel model = new UserModel();
+    model.setEmail("Lily@email");
+    assertEquals("Lily@email", model.getEmail());
+  }
+}