unit-testing - Jasmine:每个 "it"一个匹配器还是多个？

Question

在 Jasmine 测试中每个“它”有多个匹配器是否正确，否则它们会相互干扰？

我想将这些测试合并为一个:

var mapper = ......... ;

it('should be reviewed if not admin and language not set', inject(function() {
    scope.globals.isAdmin = false;
    scope.globals.language = '';
    mapper.updatedOn.setYear(2013);
    expect(scope.isReviewed(mapper)).toBe(true);
}));

it('should disregard mapper date if not admin and language not set', inject(function() {
    scope.globals.isAdmin = false;
    scope.globals.language = '';
    mapper.updatedOn.setYear(2015);
    expect(scope.isReviewed(mapper)).toBe(true);
}));

it('should be reviewed if admin and mapper is older', inject(function() {
    scope.globals.isAdmin = true;
    scope.globals.language = '';
    mapper.updatedOn.setYear(2013);
    expect(scope.isReviewed(mapper)).toBe(true);
}));

it('should be not reviewed if admin and mapper is newer', inject(function() {
    scope.globals.isAdmin = true;
    scope.globals.language = '';
    mapper.updatedOn.setYear(2015);
    expect(scope.isReviewed(mapper)).toBe(false);
}));

it('should be reviewed if not admin, language is set and mapper is older', inject(function() {
    scope.globals.isAdmin = false;
    scope.globals.language = 'de';
    mapper.updatedOn.setYear(2013);
    expect(scope.isReviewed(mapper)).toBe(true);
}));

it('should be not reviewed if not admin, language is set and mapper is newer', inject(function() {
    scope.globals.isAdmin = false;
    scope.globals.language = 'de';
    mapper.updatedOn.setYear(2015);
    expect(scope.isReviewed(mapper)).toBe(false);
}));

这可能/合理吗？

Answer 1

您可以根据需要在每个测试中拥有尽可能多的断言。但是当这个测试失败时，有太多的东西很难阅读。因为您必须扫描数十行才能找出问题所在，而不仅仅是看到 'should be not reviewed if not admin, language is set and mapper is newer'失败。

顺便提一句。在你的情况下，你可以编写一个辅助函数，这样你就没有那么多样板:

var admin = true;
var notAdmin = false

init(isAdmin, language, year) {
    scope.globals.isAdmin = isAdmin;
    scope.globals.language = language;
    mapper.updatedOn.setYear(year);
}

it('should be not reviewed if not admin, language is set and mapper is newer', inject(function() {
    init(admin, 'de', 2015)
    expect(scope.isReviewed(mapper)).toBe(false);
}));