When we describe test cases with similar parameters, we do parameterized test . In Swift, I can’t find library to do it.
So, I consider how to do parameterized test with Swift.
Here is a sample for it.
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| import XCTest | |
| class xctestSampleTests: XCTestCase { | |
| // define for parameterized test | |
| struct ParameterizedStruct { | |
| var (one, two, expected): (Int, Int, Int) | |
| } | |
| func parameterized(params: [ParameterizedStruct], _ block: (ParameterizedStruct) -> Void) { | |
| for param in params { | |
| block(param); | |
| } | |
| } | |
| func testParameterizedTesting() { | |
| // define parameters | |
| let data: [ParameterizedStruct] = [ | |
| ParameterizedStruct(one: 1, two: 2, expected: expectedMethod()), | |
| ParameterizedStruct(one: 3, two: EnumSample.Zero.rawValue, expected: 3) | |
| ] | |
| // Set test case as block case | |
| parameterized(data, { | |
| (paramStruct) in | |
| // describe test cases | |
| let item: Int? = paramStruct.one + paramStruct.two | |
| XCTAssert(item == paramStruct.expected) | |
| }) | |
| } | |
| // Method which is used in parameters | |
| func expectedMethod() -> Int { | |
| return 3 | |
| } | |
| // Enum which is used in parameters | |
| enum EnumSample: Int { | |
| case Zero, One, Two, Three | |
| } | |
| } |
In Elixir case, we can do it with…
defmodule MyExampleTest do
use ExUnit.Case, async: true
use ExUnit.Parameterized # Required
test_with_params "add params", # description
fn (a, b, expected) -> # test case
assert a + b == expected
end do
[
{1, 2, 3}, # parameters
"description": {1, 4, 5}, # parameters with description
]
end
end
~ my tech diary ~ 