Add unit tests for com.alibaba.nacos.config.server.utils.GroupKey

config/src/test/java/com/alibaba/nacos/config/server/utils/GroupKeyTest.java

@@ -16,7 +16,9 @@
 package com.alibaba.nacos.config.server.utils;
 
 import org.junit.Assert;
+import org.junit.Rule;
 import org.junit.Test;
+import org.junit.rules.ExpectedException;
 import org.junit.runner.RunWith;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
 import org.springframework.test.context.web.WebAppConfiguration;
@@ -25,6 +27,8 @@
 @WebAppConfiguration
 public class GroupKeyTest {
 
+  @Rule public final ExpectedException thrown = ExpectedException.none();
+
     @Test
     public void test_parseGroupKey_非法的() {
         String key = "11111+222+333333+444";
@@ -64,4 +68,122 @@ public class GroupKeyTest {
         Assert.assertEquals("11111%", pair[0]);
         Assert.assertEquals("222", pair[1]);
     }
+
+    @Test
+    public void getKey_ThreeParams() {
+
+        // Act
+        final String actual = GroupKey.getKey(",", ",", "3");
+
+        // Assert result
+        Assert.assertEquals(",+,+3", actual);
+    }
+
+    @Test
+    public void getKey_TwoParams() {
+
+        // Act
+        final String actual = GroupKey.getKey("3", "\'");
+
+        // Assert result
+        Assert.assertEquals("3+\'", actual);
+    }
+
+    @Test
+    public void getKeyTenant_Plus_ThreeParams() {
+
+        // Act
+        final String actual = GroupKey.getKeyTenant("3", "1", ",");
+
+        // Assert result
+        Assert.assertEquals("3+1+,", actual);
+    }
+
+    @Test
+    public void getKeyTenant_Percent_ThreeParams() {
+
+        // Act
+        final String actual = GroupKey.getKeyTenant("\u0000\u0000", "%+", null);
+
+        // Assert result
+        Assert.assertEquals("\u0000\u0000+%25%2B", actual);
+    }
+
+    @Test
+    public void parseKey_SingleCharacter() {
+
+        // Act
+        final String[] actual = GroupKey.parseKey("/");
+
+        // Assert result
+        Assert.assertArrayEquals(new String[] {null, "/", null}, actual);
+    }
+
+    @Test
+    public void parseKey_Plus_IllegalArgumentException() {
+
+        // Act
+        thrown.expect(IllegalArgumentException.class);
+        GroupKey.parseKey("+");
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void parseKey_Percent_IllegalArgumentException() {
+
+        // Act
+        thrown.expect(IllegalArgumentException.class);
+        GroupKey.parseKey("%%%5\u0000??????????????");
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void parseKey_Invalid_StringIndexOutOfBoundsException() {
+
+        // Act
+        thrown.expect(StringIndexOutOfBoundsException.class);
+        GroupKey.parseKey("++%");
+
+        // Method is not expected to return due to exception thrown
+    }
+
+    @Test
+    public void urlEncode_Plus() {
+
+        // Arrange
+        final StringBuilder sb = new StringBuilder("????");
+
+        // Act
+        GroupKey.urlEncode("+", sb);
+
+        // Assert side effects
+        Assert.assertNotNull(sb);
+        Assert.assertEquals("????%2B", sb.toString());
+    }
+
+    @Test
+    public void urlEncode_Percent() {
+
+        // Arrange
+        final StringBuilder sb = new StringBuilder("??????");
+
+        // Act
+        GroupKey.urlEncode("%", sb);
+
+        // Assert side effects
+        Assert.assertNotNull(sb);
+        Assert.assertEquals("??????%25", sb.toString());
+    }
+
+    @Test
+    public void urlEncode_NullStringBuilder() {
+
+        // Act
+        thrown.expect(NullPointerException.class);
+        GroupKey.urlEncode("+", null);
+
+        // Method is not expected to return due to exception thrown
+    }
 }