def test_view_of_view(matrix_type, subset_func, subset_func2):
    adata = gen_adata((30, 15), X_type=matrix_type)
    adata.raw = adata
    if subset_func is single_subset:
        pytest.xfail("Other subset generating functions have trouble with this")
    var_s1 = subset_func(adata.var_names, min_size=4)
    var_view1 = adata[:, var_s1]
    var_s2 = subset_func2(var_view1.var_names)
    var_view2 = var_view1[:, var_s2]
    assert var_view2._adata_ref is adata
    obs_s1 = subset_func(adata.obs_names, min_size=4)
    obs_view1 = adata[obs_s1, :]
    obs_s2 = subset_func2(obs_view1.obs_names)
    assert adata[obs_s1, :][:, var_s1][obs_s2, :]._adata_ref is adata

    view_of_actual_copy = adata[:, var_s1].copy()[obs_s1, :].copy()[:, var_s2].copy()

    view_of_view_copy = adata[:, var_s1][obs_s1, :][:, var_s2].copy()

    assert_equal(view_of_actual_copy, view_of_view_copy, exact=True)
def downloadTagPag(self, uselessArg1=None):
        logging.info("download tag page")
        strTagHtmlFolderPath = self.SOURCE_HTML_BASE_FOLDER_PATH + u"\\TECHORANGE\\tag"
        if not os.path.exists(strTagHtmlFolderPath):
            os.mkdir(strTagHtmlFolderPath) #mkdir source_html/TECHORANGE/tag/
        strTagWebsiteDomain = self.strWebsiteDomain + u"/tag"
        #取得 Db 中尚未下載的 Tag 名稱
        lstStrNotObtainedTagName = self.db.fetchallNotObtainedTagName()
        for strNotObtainedTagName in lstStrNotObtainedTagName:
            #略過名稱太長的 tag
            if len(strNotObtainedTagName) > 60:
                continue
            strTagUrl = strTagWebsiteDomain + u"/" + strNotObtainedTagName
            #tag 第0頁
            intPageNum = 0
            time.sleep(random.randint(2,5)) #sleep random time
            self.driver.get(strTagUrl)
            #儲存 html
            strTagHtmlFilePath = strTagHtmlFolderPath + u"\\%d_%s_tag.html"%(intPageNum, strNotObtainedTagName)
            self.utility.overwriteSaveAs(strFilePath=strTagHtmlFilePath, unicodeData=self.driver.page_source)
            #tag 下一頁
            elesNextPageA = self.driver.find_elements_by_css_selector("div.nav-links a.next.page-numbers")
            while len(elesNextPageA) != 0:
                time.sleep(random.randint(2,5)) #sleep random time
                intPageNum = intPageNum+1
                strTagUrl = elesNextPageA[0].get_attribute("href")
                self.driver.get(strTagUrl)
                #儲存 html
                strTagHtmlFilePath = strTagHtmlFolderPath + u"\\%d_%s_tag.html"%(intPageNum, strNotObtainedTagName)
                self.utility.overwriteSaveAs(strFilePath=strTagHtmlFilePath, unicodeData=self.driver.page_source)
                #tag 再下一頁
                elesNextPageA = self.driver.find_elements_by_css_selector("div.nav-links a.next.page-numbers")
            #更新tag DB 為已抓取 (isGot = 1)
            self.db.updateTagStatusIsGot(strTagName=strNotObtainedTagName)
            logging.info("got tag %s"%strNotObtainedTagName)