What is the test for granting an application for a Canadian citizen's visa?

As stated by McKeown J. in Kashani v. Minister of Citizenship and Immigration:11 The applicant asserts that he was denied fairness by not being given an opportunity to respond to the visa officer"s concerns. However, the onus is on the applicant to prove that he has the ability to establish a business in Canada and will create an employment opportunity for himself and will make a significant contribution to the economy. It was open to the visa officer to find that the applicant did not have a realistic plan of action and did not understand the jewellery market conditions in Canada. It was also open to him to find that the applicant did not have the necessary management skills in business that would make a significant contribution to Canada. Thus, there was no need for the visa officer to request the applicant to provide further evidence on these points. The onus was on the applicant, and not on the visa officer.12