File: doc.go

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golang-github-leanovate-gopter 0.2.9%2Bgit20210201.bbbf00e-2
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/*
Package gopter contain the main interfaces of the GOlang Property TestER.

A simple property test might look like this:

    func TestSqrt(t *testing.T) {
    	properties := gopter.NewProperties(nil)

    	properties.Property("greater one of all greater one", prop.ForAll(
    		func(v float64) bool {
    			return math.Sqrt(v) >= 1
    		},
    		gen.Float64Range(1, math.MaxFloat64),
    	))

    	properties.Property("squared is equal to value", prop.ForAll(
    		func(v float64) bool {
    			r := math.Sqrt(v)
    			return math.Abs(r*r-v) < 1e-10*v
    		},
    		gen.Float64Range(0, math.MaxFloat64),
    	))

    	properties.TestingRun(t)
    }

Generally a property is just a function that takes GenParameters and produces
a PropResult:

    type Prop func(*GenParameters) *PropResult

but usually you will use prop.ForAll, prop.ForAllNoShrink or arbitrary.ForAll.
There is also the commands package, which can be helpful for stateful testing.
*/
package gopter