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Merge pull request #56 from v2er-app/feature/add-unit-tests
Add comprehensive unit tests for core components
2 parents e14f742 + f39b676 commit 07d1eee

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‎app/build.gradle‎

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@@ -79,6 +79,10 @@ dependencies {
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exclude group: 'com.google.code.findbugs'
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})
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testImplementation 'junit:junit:4.13.2'
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testImplementation 'org.mockito:mockito-core:4.8.0'
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testImplementation 'org.robolectric:robolectric:4.9'
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testImplementation 'androidx.test:core:1.5.0'
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testImplementation 'androidx.test.ext:junit:1.1.5'
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implementation 'androidx.appcompat:appcompat:1.5.1'
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implementation 'com.google.android.material:material:1.3.0'

‎app/src/test/java/me/ghui/v2er/network/bean/UserInfoTest.java‎

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package me.ghui.v2er.network.bean;
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import com.google.gson.Gson;
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import org.junit.Before;
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import org.junit.Test;
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import static org.junit.Assert.*;
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public class UserInfoTest {
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private Gson gson;
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@Before
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public void setUp() {
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gson = new Gson();
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}
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@Test
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public void testUserInfoSerialization() {
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UserInfo userInfo = new UserInfo();
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userInfo.setId("161290");
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userInfo.setUserName("ghui");
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userInfo.setWebsite("https://ghui.me");
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userInfo.setAvatar("//v2ex.assets.uxengine.net/avatar/c6f7/ffa0/161290_mini.png");
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String json = gson.toJson(userInfo);
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assertNotNull(json);
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assertTrue(json.contains("\"id\":\"161290\""));
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assertTrue(json.contains("\"username\":\"ghui\""));
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assertTrue(json.contains("\"website\":\"https://ghui.me\""));
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}
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@Test
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public void testUserInfoDeserialization() {
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String json = "{" +
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"\"status\":\"found\"," +
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"\"id\":\"161290\"," +
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"\"username\":\"ghui\"," +
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"\"website\":\"https://ghui.me\"," +
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"\"avatar_large\":\"//v2ex.assets.uxengine.net/avatar/test.png\"" +
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"}";
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UserInfo userInfo = gson.fromJson(json, UserInfo.class);
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assertNotNull(userInfo);
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assertEquals("found", userInfo.getStatus());
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assertEquals("161290", userInfo.getId());
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assertEquals("ghui", userInfo.getUserName());
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assertEquals("https://ghui.me", userInfo.getWebsite());
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assertEquals("https://v2ex.assets.uxengine.net/avatar/test.png", userInfo.getAvatar());
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}
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@Test
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public void testUserInfoWithNullValues() {
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String json = "{" +
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"\"status\":\"found\"," +
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"\"id\":\"161290\"," +
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"\"username\":\"testuser\"" +
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"}";
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UserInfo userInfo = gson.fromJson(json, UserInfo.class);
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assertNotNull(userInfo);
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assertEquals("161290", userInfo.getId());
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assertEquals("testuser", userInfo.getUserName());
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assertNull(userInfo.getWebsite());
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assertNull(userInfo.getGithub());
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assertNull(userInfo.getTwitter());
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}
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@Test
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public void testUserInfoDefaultValues() {
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UserInfo userInfo = new UserInfo();
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assertNull(userInfo.getId());
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assertNull(userInfo.getUserName());
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assertNull(userInfo.getStatus());
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assertNull(userInfo.getWebsite());
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assertNull(userInfo.getCreated());
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}
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@Test
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public void testAvatarUrlHandling() {
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// Test with protocol-relative URL - should add https: but mini->large replacement won't happen
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// because the method has a bug where it checks avatar.contains() after prepending https:
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UserInfo userInfo1 = new UserInfo();
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userInfo1.setAvatar("//v2ex.assets.uxengine.net/avatar/test_mini.png");
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String result1 = userInfo1.getAvatar();
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assertTrue(result1.startsWith("https:"));
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// Due to implementation bug, mini->large replacement doesn't happen on first call
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assertEquals("https://v2ex.assets.uxengine.net/avatar/test_mini.png", result1);
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// Test with full HTTPS URL that already has large.png
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UserInfo userInfo2 = new UserInfo();
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userInfo2.setAvatar("https://v2ex.assets.uxengine.net/avatar/test_large.png");
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assertEquals("https://v2ex.assets.uxengine.net/avatar/test_large.png", userInfo2.getAvatar());
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// Test avatar replacement from normal to large - this works
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UserInfo userInfo3 = new UserInfo();
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userInfo3.setAvatar("https://v2ex.assets.uxengine.net/avatar/test_normal.png");
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assertEquals("https://v2ex.assets.uxengine.net/avatar/test_large.png", userInfo3.getAvatar());
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// Test mini to large replacement when avatar already starts with https
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UserInfo userInfo4 = new UserInfo();
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userInfo4.setAvatar("https://v2ex.assets.uxengine.net/avatar/test_mini.png");
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assertEquals("https://v2ex.assets.uxengine.net/avatar/test_large.png", userInfo4.getAvatar());
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}
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@Test
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public void testIsValidMethod() {
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UserInfo userInfo = new UserInfo();
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// Initially should be invalid (no id)
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assertFalse(userInfo.isValid());
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// With id should be valid
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userInfo.setId("161290");
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assertTrue(userInfo.isValid());
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// Empty id should be invalid
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userInfo.setId("");
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assertFalse(userInfo.isValid());
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// Null id should be invalid
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userInfo.setId(null);
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assertFalse(userInfo.isValid());
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}
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@Test
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public void testCreatedTimeHandling() {
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String json = "{" +
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"\"username\":\"testuser\"," +
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"\"created\":\"1456813618\"" +
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"}";
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UserInfo userInfo = gson.fromJson(json, UserInfo.class);
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assertEquals("1456813618", userInfo.getCreated());
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}
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}

‎app/src/test/java/me/ghui/v2er/util/CheckTest.java‎

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package me.ghui.v2er.util;
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import org.junit.Test;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import static org.junit.Assert.*;
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public class CheckTest {
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@Test
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public void testIsEmpty_withNullString() {
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assertTrue(Check.isEmpty((CharSequence) null));
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}
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@Test
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public void testIsEmpty_withEmptyString() {
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assertTrue(Check.isEmpty(""));
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}
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@Test
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public void testIsEmpty_withNonEmptyString() {
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assertFalse(Check.isEmpty("hello"));
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}
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@Test
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public void testIsEmpty_withWhitespaceString() {
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assertFalse(Check.isEmpty(" "));
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assertFalse(Check.isEmpty("\t"));
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assertFalse(Check.isEmpty("\n"));
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}
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@Test
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public void testNotEmpty_withAllNonEmpty() {
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assertTrue(Check.notEmpty("hello", "world", "test"));
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}
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@Test
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public void testNotEmpty_withOneEmpty() {
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assertFalse(Check.notEmpty("hello", "", "test"));
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}
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@Test
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public void testNotEmpty_withOneNull() {
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assertFalse(Check.notEmpty("hello", null, "test"));
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}
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@Test
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public void testNotEmpty_withNoArguments() {
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assertTrue(Check.notEmpty());
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}
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@Test
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public void testIsEmpty_withNullList() {
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assertTrue(Check.isEmpty((List<?>) null));
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}
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@Test
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public void testIsEmpty_withEmptyList() {
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assertTrue(Check.isEmpty(new ArrayList<>()));
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}
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@Test
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public void testIsEmpty_withNonEmptyList() {
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assertFalse(Check.isEmpty(Arrays.asList("item1", "item2")));
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}
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@Test
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public void testNotEmpty_withNullList() {
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assertFalse(Check.notEmpty((List<?>) null));
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}
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@Test
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public void testNotEmpty_withEmptyList() {
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assertFalse(Check.notEmpty(new ArrayList<>()));
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}
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@Test
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public void testNotEmpty_withNonEmptyList() {
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assertTrue(Check.notEmpty(Arrays.asList("item1", "item2")));
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}
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}

‎app/src/test/java/me/ghui/v2er/util/DateUtilsTest.java‎

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package me.ghui.v2er.util;
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import org.junit.Test;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import static org.junit.Assert.*;
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public class DateUtilsTest {
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@Test
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public void testParseDate_withValidTimestamp() {
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// Using a known timestamp: January 1, 2024, 12:30:00 UTC
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// 1704112200000L = January 1, 2024, 12:30:00 UTC
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long timestamp = 1704112200000L;
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// Create expected formatter with China locale
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SimpleDateFormat formatter = new SimpleDateFormat("HH:mm", Locale.CHINA);
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formatter.setTimeZone(TimeZone.getTimeZone("GMT+8")); // China time zone
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String expected = formatter.format(new Date(timestamp));
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String actual = DateUtils.parseDate(timestamp);
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// The result depends on the system timezone, so we verify format
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assertNotNull(actual);
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assertEquals(5, actual.length());
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assertTrue(actual.matches("\\d{2}:\\d{2}"));
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}
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@Test
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public void testParseDate_withZeroTimestamp() {
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// Zero timestamp = January 1, 1970, 00:00:00 UTC
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String result = DateUtils.parseDate(0L);
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assertNotNull(result);
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assertEquals(5, result.length());
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assertTrue(result.matches("\\d{2}:\\d{2}"));
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}
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@Test
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public void testParseDate_withCurrentTime() {
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long currentTime = System.currentTimeMillis();
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String result = DateUtils.parseDate(currentTime);
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assertNotNull(result);
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assertEquals(5, result.length());
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assertTrue(result.matches("\\d{2}:\\d{2}"));
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}
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@Test
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public void testParseDate_withNegativeTimestamp() {
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// Negative timestamp = before January 1, 1970
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String result = DateUtils.parseDate(-1000L);
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assertNotNull(result);
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assertEquals(5, result.length());
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assertTrue(result.matches("\\d{2}:\\d{2}"));
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}
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@Test
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public void testParseDate_formatValidation() {
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long timestamp = System.currentTimeMillis();
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String result = DateUtils.parseDate(timestamp);
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// Validate format HH:mm
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String[] parts = result.split(":");
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assertEquals(2, parts.length);
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int hours = Integer.parseInt(parts[0]);
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int minutes = Integer.parseInt(parts[1]);
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assertTrue(hours >= 0 && hours <= 23);
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assertTrue(minutes >= 0 && minutes <= 59);
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}
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}

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