近期公司上线了一个功能,就是在虚拟教室中添加了一个白板的展示框,此白板可以由老师通过配套的笔(硬件)进行绘制图形,有一些简单的功能,学生可以同步白板信息,也可以在老师授权的情况下进行绘制。

答题需求就是这些,技术上的细节整理如下:

白板传输接口文档

这个文档是本人自己整理的,主要讲清楚白板数据传输接口的测试脚本实现过程遇到的问题。

接口逻辑

数据来源

白板原始数据为点坐标,通过 SDK(自研)进行数据的处理,得到二进制数据,再通过 base64 转码成字符串。长度约为几十。

业务处理

共有三种不同的请求消息结构,分别为

每次发送数据量为 5 个坐标点,发送数据中有 UUID 格式的笔画 ID,用户 ID(字符格式)。在落笔消息中需要添加颜色数据(10 进制数字,来源为 RGB 颜色转成 10 进制即可)

起笔和落笔可不足 5 个坐标点。

坐标分布

pad 正常放置桌面(横向),白板左上角为原点(0,0),右下方坐标为(1200,760),全部在第一象限。

测试方案

首先我用了一个point的类用于报错某一个点的坐标信息,颜色信息在起笔过程中传输。

package com.okayqa.board.base;

public class Point {

    public short x;         // 将此值除以 10 才是点的 x 坐标

    public short y;         // 将此值除以 10 才是点的 x 坐标

    public short width;     // 将此值除以 100 才是点的宽度

    private Point(int x, int y, int width) {
        this.x = (short) (x * 10);
        this.y = (short) (y * 10);
        this.width = (short) (width * 100);
    }

    private Point(int x, int y) {
        this(x, y, 3);
    }

    public static Point getPoint(int x, int y) {
        if (x < 0 || x > 1199 || y < 0 || y > 760) return new Point(1, 1);
        return new Point(x, y);
    }

    public static Point getPoint(int x, int y, int width) {
        if (x < 0 || x > 1199 || y < 0 || y > 760) return new Point(1, 1, width);
        return new Point(x, y, width);
    }


    /**
     * 偏移方法
     *
     * @param offsetX 实际坐标点偏移量 x
     * @param offsetY 实际坐标点偏移量 y
     * @return
     */
    public Point move(int offsetX, int offsetY) {
        return getPoint(this.x / 10 + offsetX * 10, this.y / 10 + offsetY * 10);
    }

    @Override
    public String toString() {
        return "Point{ " + x + ", " + y + '}';
    }


}

然后用了一个BoardBase类封装了一些基础方法,主要是生成一些BoardUser中使用的静态方法,获取UUID和设定的几种图形的点集合。

MessageHandler类是SDK自带的,这里继承一下只是为了方便调用其方法。

package com.okayqa.board.base;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

import static com.okayqa.board.base.Point.getPoint;

/**
 * 白板测试:wiki:http://rap2.ailearn.ink/repository/editor?id=30&mod=69&itf=187
 */
public class BoardBase extends MessageHandler {

    private static Logger logger = LoggerFactory.getLogger(BoardBase.class);

    public static List<Point> getFive(int x, int y) {
        if (x < 0 || x > 1199 || y < 0 || y > 760) return getFive(0, 0);
        List<Point> ps = new ArrayList<>();
        ps.add(getPoint(x, y));
        ps.add(getPoint(x + 1, y));
        ps.add(getPoint(x + 1, y + 1));
        ps.add(getPoint(x + 2, y + 1));
        ps.add(getPoint(x + 2, y + 2));
        return ps;
    }


    /**
     * 获取一个UUID的strokeID
     *
     * @return
     */
    public static String getStrokeId() {
        String s = DEFAULT_STRING + UUID.randomUUID().toString();
        logger.info("生成了笔画ID: {}", s);
        return s;
    }

    /**
     * 获取随机颜色值
     *
     * @return
     */
    public static int getColor() {
        return getRandomInt(16777215);
    }

    /**
     * 画一个方形
     *
     * @param xx 中心点x坐标
     * @param yy 中心点y坐标
     * @param x  横长度/2
     * @param y  竖长度/2
     * @return
     */
    public static List<Point> square(int xx, int yy, int x, int y) {
        List<Point> ps = new ArrayList<>();
        Point lefttop = getPoint(xx - x, yy - y);
        Point righttop = getPoint(xx + x, yy - y);
        Point leftbottom = getPoint(xx - x, yy + y);
        Point rightbottom = getPoint(xx + x, yy + y);
        ps.addAll(line(lefttop, righttop));
        ps.addAll(line(righttop, rightbottom));
        ps.addAll(line(rightbottom, leftbottom));
        ps.addAll(line(leftbottom, lefttop));
        return ps;
    }

    /**
     * 画直线
     *
     * @param start 起点
     * @param end   终点
     * @return
     */
    public static List<Point> line(Point start, Point end) {
        List<Point> ps = new ArrayList<>();
        int xlength = end.x - start.x;
        int ylength = end.y - start.y;
        ps.add(start);
        for (int i = 1; i < xlength; i++) {
            int xx = start.x + i;
            int yy = start.y + (ylength / xlength) * i;
            ps.add(getPoint(xx, yy));
        }
        ps.add(end);
        return ps;
    }

    /**
     * 画圆形
     *
     * @param x 圆心坐标x
     * @param y 圆心坐标y
     * @param r 半径
     * @return
     */
    public static List<Point> circle(int x, int y, int r) {
        List<Point> ps = new ArrayList<>();
        double diff = Math.PI / 60;
        for (int i = 0; i < 121; i++) {
            double xx = r * (Math.cos(i * diff)) + x;
            double yy = r * (Math.sin(i * diff)) + y;
            ps.add(getPoint((int) xx, (int) yy));
        }
        return ps;
    }

    /**
     * 画心形图案的方法
     *
     * @param x 圆心坐标x
     * @param y 圆心坐标y
     * @param r 半径
     * @return
     */
    public static List<Point> heart(int x, int y, int r) {
        //画心形的方法
        List<Point> heart = new ArrayList<>();
        double d = Math.PI / 60;
        for (int i = 0; i < 121; i++) {
            double xx = r * (2 * Math.cos(i * d) - Math.cos(2 * i * d));
            double yy = r * (2 * Math.sin(i * d) - Math.sin(2 * i * d));
            heart.add(getPoint((int) yy + x, (int) xx + y));
        }
        return heart;
    }


}

下面是BoardUser类,由于这个类主要是用来生成各种用于Socket接口传输的数据的,所以没有实现ibase接口,也没有进行登录等操作,只有一个author来标记是不同的作者,因为author这个参数在转码的过程中用到了。

package com.okayqa.board.function

import com.fun.utils.DecodeEncode
import com.okayqa.board.base.BoardBase
import com.okayqa.board.base.Document
import com.okayqa.board.base.Point
import com.okayqa.board.base.WriteType
import org.msgpack.core.MessagePack
import org.slf4j.Logger
import org.slf4j.LoggerFactory

import java.util.stream.Collectors

class BoardUser extends BoardBase {

    private static Logger logger = LoggerFactory.getLogger(BoardUser.class)

    /**
     * 作者
     */
    String author

    /**
     * 版本
     */
    byte version = Document.BOARD_VERSION_INITIAL;

    /**
     * 最后一次点阵集合
     */
    List<Point> ps;

    BoardUser(String author) {
        this.author = author
    }

    public String writeStart(List<Point> ps, String strokeId, byte page = 0) {
        write(ps, strokeId, page, WriteType.START)
    }


    public String writeEnd(List<Point> ps, String strokeId, byte page = 0) {
        write(ps, strokeId, page, WriteType.END)
    }

    public String writeMove(List<Point> ps, String strokeId, byte page = 0) {
        write(ps, strokeId, page, WriteType.MOVE)
    }

    public String clearPage(byte page = 0) {
        def packer = MessagePack.newDefaultBufferPacker()
        writeClearPage(Document.CURRENT_BOARD_VERSION, author, page, packer);
        DecodeEncode.base64Encode(packer.toByteArray())
    }

    /**
     * 创建不同的笔画类型
     * @param ps
     * @param strokeId
     * @param page
     * @param type
     * @return
     */
    private String write(List<Point> ps, String strokeId, byte page = 0, WriteType type) {
        def packer = MessagePack.newDefaultBufferPacker()
        switch (type) {
            case WriteType.START:
                writeStartWrite(version, author, page, strokeId, getColor(), ps, packer)
                break;
            case WriteType.MOVE:
                writeContinueWrite(version, author, page, strokeId, ps, packer)
                break
            case WriteType.END:
                writeEndWrite(version, author, page, strokeId, ps, packer)
                break
            default:
                break
        }
        DecodeEncode.base64Encode(packer.toByteArray());
    }

    public List<String> initGraph(String strokeId = getStrokeId(), byte page = 0) {
        List<String> mgss = new ArrayList<>()
        if (ps == null || ps.isEmpty()) return mgss
        for (int i = 0; i < ps.size(); i += 5) {
            def five = ps[i..(i + 6 > ps.size() ? ps.size() - 1 : i + 4)]
            if (mgss.isEmpty()) {
                mgss << writeStart(five, strokeId, page)
                continue
            }
            if (!mgss.isEmpty() && i + 6 > ps.size()) {
                mgss << writeEnd(five, strokeId, page)
                continue
            }
            mgss << writeMove(five, strokeId, page)
        }
        mgss
    }


    /**
     * 画方形
     * @return
     */
    public List<String> writeSquare() {
        ps = square(500, 300, 200, 100)
        initGraph()
    }

    /**
     * 画圆形
     * @return
     */
    public List<String> writeCircle() {
        ps = circle(500, 300, 250)
        initGraph()
    }

    /**
     * 画心形
     * @return
     */
    public List<String> writeHeart() {
        ps = heart(500, 300, 200)
        initGraph()
    }

    /**
     * 图形漂移
     * @param offsetX
     * @param offsetY
     * @return
     */
    public List<String> move(int offsetX, int offsetY) {
        ps = ps.stream().map { it.move(offsetX, offsetY) }.collect(Collectors.toList())
        initGraph()
    }


}

测试 Demo

下面是测试方法:

public static void main(String[] args) throws IOException {
    BoardUser boardUser = new BoardUser(Users.getTeaUser(0));
    List<String> list = boardUser.writeCircle();
    range(list.size()).forEach(x -> output(list.get(x)));
}

控制台输出:

INFO-> 当前用户:fv,IP:10.60.193.37,工作目录:/Users/fv/Documents/workspace/okay_test/,系统编码格式:UTF-8,系统Mac OS X版本:10.16
INFO-> 生成了笔画ID: FunTester88f7b499-843d-406e-86f8-889c00119220
INFO-> AQKrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjDOAInvmZXNHUzNC7jNASzNHULNDDrNASzNHTjNDLzNASzNHSTNDT7NASzNHRDNDbbNASw=
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRzyzQ44zQEszRzKzQ66zQEszRyizQ8yzQEszRxwzQ+qzQEszRw0zRAizQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRv4zRCazQEszRuyzREIzQEszRtszRFszQEszRsczRHazQEszRrCzRI+zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRpozRKYzQEszRoOzRLyzQEszRmqzRNMzQEszRk8zROczQEszRjYzRPizQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRhqzRQozQEszRfyzRRkzQEszRd6zRSgzQEszRcCzRTSzQEszRaKzRT6zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRYIzRUizQEszRWGzRVAzQEszRUOzRVUzQEszRSMzRVozQEszRQKzRVyzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzROIzRV8zQEszRL8zRVyzQEszRJ6zRVozQEszRH4zRVUzQEszRGAzRVAzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRD+zRUizQEszRB8zRT6zQEszRAEzRTSzQEszQ+MzRSgzQEszQ8UzRRkzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQ6mzRQozQEszQ4uzRPizQEszQ3KzROczQEszQ1czRNMzQEszQz4zRLyzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQyezRKYzQEszQxEzRI+zQEszQvqzRHazQEszQuazRFszQEszQtUzREIzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQsOzRCazQEszQrSzRAizQEszQqWzQ+qzQEszQpkzQ8yzQEszQo8zQ66zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQoUzQ44zQEszQn2zQ22zQEszQnizQ0+zQEszQnOzQy8zQEszQnEzQw6zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQnEzQu4zQEszQnEzQsszQEszQnOzQqqzQEszQnizQoozQEszQn2zQmwzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQoUzQkuzQEszQo8zQiszQEszQpkzQg0zQEszQqWzQe8zQEszQrSzQdEzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQsOzQbWzQEszQtUzQZezQEszQuazQX6zQEszQvqzQWMzQEszQxEzQUozQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQyezQTOzQEszQz4zQR0zQEszQ1czQQazQEszQ3KzQPKzQEszQ4uzQOEzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzQ6czQM+zQEszQ8UzQMCzQEszQ+MzQLGzQEszRAEzQKUzQEszRB8zQJszQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRD+zQJEzQEszRGAzQImzQEszRH4zQISzQEszRJ6zQH+zQEszRL8zQH0zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRN+zQH0zQEszRQKzQH0zQEszRSMzQH+zQEszRUOzQISzQEszRWGzQImzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRYIzQJEzQEszRaKzQJszQEszRcCzQKUzQEszRd6zQLGzQEszRfyzQMCzQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRhgzQM+zQEszRjYzQOEzQEszRk8zQPKzQEszRmqzQQazQEszRoOzQR0zQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRpozQTOzQEszRrCzQUozQEszRsczQWMzQEszRtszQX6zQEszRuyzQZezQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRv4zQbMzQEszRw0zQdEzQEszRxwzQe8zQEszRyizQg0zQEszRzKzQiszQEs
INFO-> AQOrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCVzRzyzQkuzQEszR0QzQmwzQEszR0kzQoozQEszR04zQqqzQEszR1CzQsszQEs
INFO-> AQSrNjE5NTEzNzUyNjkA2S1GdW5UZXN0ZXI4OGY3YjQ5OS04NDNkLTQwNmUtODZmOC04ODljMDAxMTkyMjCRzR1MzQuuzQEs

Process finished with exit code 0

完美!

接下来会分享一下Socket接口的中如何进行白板接口测试,敬请期待!


FunTester,非著名测试开发,文章记录学习和感悟,欢迎关注,交流成长。


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