github.com/m4gshm/gollections@v0.0.13-0.20240331203319-a34a86e58a24/break/kv/loop/group/api_test.go (about)

     1  package group
     2  
     3  import (
     4  	"testing"
     5  
     6  	"github.com/stretchr/testify/assert"
     7  
     8  	"github.com/m4gshm/gollections/break/loop"
     9  )
    10  
    11  func Test_group_odd_even(t *testing.T) {
    12  
    13  	var (
    14  		even      = func(v int) (bool, error) { return v%2 == 0, nil }
    15  		groups, _ = Of(loop.KeyValuee(loop.Of(1, 1, 2, 4, 3, 1), even, func(i int) (int, error) { return i, nil }))
    16  	)
    17  	assert.Equal(t, map[bool][]int{false: {1, 1, 3, 1}, true: {2, 4}}, groups)
    18  }