options_test.go

package options

import (
	"testing"

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

func TestOptions_MergePaginationOptions(t *testing.T) {
	var tt = []struct {
		name     string
		options  []PaginationOptions
		expected PaginationOptions
	}{
		{
			name:     "Nil option",
			options:  nil,
			expected: PaginationOptions{},
		},
		{
			name:     "Empty options",
			options:  []PaginationOptions{},
			expected: PaginationOptions{},
		},
		{
			name:     "One page option",
			options:  []PaginationOptions{{PageNum: 10, PageSize: 100}},
			expected: PaginationOptions{PageNum: 10, PageSize: 100},
		},
		{
			name:     "Merge pages #1",
			options:  []PaginationOptions{{PageNum: 0, PageSize: 0}, {PageNum: 10, PageSize: 100}},
			expected: PaginationOptions{PageNum: 10, PageSize: 100},
		},
		{
			name:     "Merge pages #2",
			options:  []PaginationOptions{{PageNum: 10, PageSize: 100}, {PageNum: 0, PageSize: 0}},
			expected: PaginationOptions{PageNum: 10, PageSize: 100},
		},
		{
			name:     "Merge pages #3",
			options:  []PaginationOptions{{PageNum: 0, PageSize: 0}, {PageNum: 10, PageSize: 100}, {PageNum: 0, PageSize: 0}},
			expected: PaginationOptions{PageNum: 10, PageSize: 100},
		},
		{
			name:     "Merge pages #4",
			options:  []PaginationOptions{{PageNum: 10, PageSize: 100}, {}},
			expected: PaginationOptions{PageNum: 10, PageSize: 100},
		},

		{
			name:     "One limit/offset option",
			options:  []PaginationOptions{{Limit: 10, Offset: 100}},
			expected: PaginationOptions{Limit: 10, Offset: 100},
		},
		{
			name:     "Merge limit/offset #1",
			options:  []PaginationOptions{{Limit: 0, Offset: 0}, {Limit: 10, Offset: 100}},
			expected: PaginationOptions{Limit: 10, Offset: 100},
		},
		{
			name:     "Merge limit/offset #2",
			options:  []PaginationOptions{{Limit: 10, Offset: 100}, {Limit: 0, Offset: 0}},
			expected: PaginationOptions{Limit: 10, Offset: 100},
		},
		{
			name:     "Merge limit/offset #3",
			options:  []PaginationOptions{{Limit: 0, Offset: 0}, {Limit: 10, Offset: 100}, {Limit: 0, Offset: 0}},
			expected: PaginationOptions{Limit: 10, Offset: 100},
		},