sum_test.go

package goterators

import (
	"fmt"
	"testing"
)

func TestSum(t *testing.T) {
	testSource := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}
	expectedValue := 210
	actutalValue := Sum(testSource)

	if actutalValue != expectedValue {
		t.Errorf("Expected = %v , got = %v", expectedValue, actutalValue)
	}
}

func ExampleSum() {
	testSource := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20}
	fmt.Println("Sum: ", Sum(testSource))
}