帮我针对下这个测试方法生成junite的单元测试算法2测试get_char方法：输入：一个BufferedReader对象预期输出：返回读取到的字符

@Test public void testGetChar() throws IOException { StringReader reader = new StringReader("abc"); BufferedReader bufferedReader = new BufferedReader(reader);

char expectedChar = 'a';
char actualChar = bufferedReader.getChar();

assertEquals(expectedChar, actualChar);

}