增加ContentType新的构建方法的单元测试

hutool-http/src/test/java/cn/hutool/http/ContentTypeTest.java

@@ -0,0 +1,19 @@
+package cn.hutool.http;
+
+import cn.hutool.core.util.CharsetUtil;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * ContentType 单元测试
+ *
+ *
+ */
+public class ContentTypeTest {
+
+	@Test
+	public void testBuild() {
+		String result = ContentType.build(ContentType.JSON, CharsetUtil.CHARSET_UTF_8);
+		Assert.assertEquals("application/json;charset=UTF-8", result);
+	}
+}