Spock參數化與Scala TableDrivenPropertyChecks

Question

Spock框架包含@Unroll註釋，其結果是將參數化測試中的每個「案例」顯示爲單獨的測試。 ScalaTest有可能類似嗎？

Answer 1

最接近的將是table-driven property checks：

import org.scalatest.prop.TableDrivenPropertyChecks._ 

val fractions = 
    Table(
    ("n", "d"), // First tuple defines column names 
    ( 1, 2), // Subsequent tuples define the data 
    (-1, 2), 
    ( 1, -2), 
    (-1, -2), 
    ( 3, 1), 
    (-3, 1), 
    (-3, 0), 
    ( 3, -1), 
    ( 3, Integer.MIN_VALUE), 
    (Integer.MIN_VALUE, 3), 
    (-3, -1) 
) 

import org.scalatest.matchers.ShouldMatchers._ 

forAll (fractions) { (n: Int, d: Int) => 

    whenever (d != 0 && d != Integer.MIN_VALUE 
     && n != Integer.MIN_VALUE) { 

    val f = new Fraction(n, d) 

    if (n < 0 && d < 0 || n > 0 && d > 0) 
     f.numer should be > 0 
    else if (n != 0) 
     f.numer should be < 0 
    else 
     f.numer should be === 0 

    f.denom should be > 0 
    } 
} 

還有其他一些技術，如"sharing tests"和 更property-based testing。