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BreadCrumbs

Creating Unit Tests

Simple Unit Test

The following is how you could start a very simple unit test:

package main

import (
    "testing"

    "github.com/stretchr/testify/assert"
)

func TestSomeFunction(t *testing.T) {
    tester := assert.New(t)
    tester.Nil(nil)
}

Test Cases

The following can serve as an example for unit tests with a list of cases:

package main

import (
    "math"
    "testing"

    "github.com/stretchr/testify/assert"
)

func IsSquare(x int) bool {
    y := int(math.Sqrt(float64(x)))
    return x == y*y
}

func TestAListOfCases(t *testing.T) {
    tester := assert.New(t)
    type myCase struct {
        value    int
        expected bool
    }
    for _, tc := range []myCase{
        {
            -4, false,
        },
        {
            4, true,
        },
        {
            64, true,
        },
        {
            63, false,
        },
    } {
        if tc.expected != IsSquare(tc.value) {
            tester.Fail("IsSquare(%d) did not get %t", tc.value, tc.expected)
        }
    }
}