javascript - 从 element.all Protractor 返回计数总和

Question

我需要计算所有匹配过滤器的元素的总和。

函数如下:

this.filterPoolRecordGrid = function (searchText, callback) {
    var defer = protractor.promise.defer();
    element.all(By.repeater("(rowRenderIndex, row) in rowContainer.renderedRows track by $index")).then(function (eles) {
        var countR = 0;
        eles.forEach(function (ele) {
            ele.all(By.repeater('(colRenderIndex, col) in colContainer.renderedColumns track by col.uid')).filter(function (ele) {
                return  ele.getText().then(function (text) {
                    return text.indexOf(searchText) > -1;
                })
            }).count().then(function (value) {
                countR += value;
                callback(countR);
            });
        });
    });

    defer.fulfill();
    return defer.promise;
};

下面是我的使用方法:

it('Test valid input into groups search box', function () {
            poolRecordsPage.filterPoolRecordGrid('two', function (count) {
                console.info(count);
            });

通过使用回调，我能够返回总和，但是，因为我使用了 element.forEach。输出如下，但我只需要最后一个，即最后 2 个。

Started

0 0 0 0 0 1个 1个 1个 2个 2

Answer 1

使用map()相反:

this.filterPoolRecordGrid = function (searchText) {
    return element.all(By.repeater("(rowRenderIndex, row) in rowContainer.renderedRows track by $index")).map(function (ele) {
        return ele.all(By.repeater('(colRenderIndex, col) in colContainer.renderedColumns track by col.uid')).filter(function (ele) {
            return  ele.getText().then(function (text) {
                return text.indexOf(searchText) > -1;
            })
        }).count();
    }).then(function (counts) {
        return counts.reduce(function(a, b) { return a + b; }, 0);
    });
};

用法:

poolRecordsPage.filterPoolRecordGrid('two').then(function (count) {
    console.log(count);
});

或者:

expect(poolRecordsPage.filterPoolRecordGrid('two')).toEqual(10);