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package core
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
)
func TestPaginationPage(t *testing.T) {
cases := []struct {
totalCount int
perPage int
page int
newPage int
expErr bool
}{
{0, 10, 1, 1, false},
{0, 10, 0, 1, false},
{0, 10, 1, 1, false},
{0, 10, 2, 0, true},
{5, 10, -1, 0, true},
{5, 10, 0, 1, false},
{5, 10, 1, 1, false},
{5, 10, 2, 0, true},
{5, 10, 2, 0, true},
{5, 5, 1, 1, false},
{5, 5, 2, 0, true},
{5, 5, 3, 0, true},
{5, 3, 2, 2, false},
{5, 3, 3, 0, true},
{5, 2, 2, 2, false},
{5, 2, 3, 3, false},
{5, 2, 4, 0, true},
}
for _, c := range cases {
p, err := validatePage(c.page, c.perPage, c.totalCount)
if c.expErr {
assert.Error(t, err)
continue
}
assert.Equal(t, c.newPage, p, fmt.Sprintf("%v", c))
}
}
func TestPaginationPerPage(t *testing.T) {
cases := []struct {
totalCount int
perPage int
newPerPage int
}{
{5, 0, defaultPerPage},
{5, 1, 1},
{5, 2, 2},
{5, defaultPerPage, defaultPerPage},
{5, maxPerPage - 1, maxPerPage - 1},
{5, maxPerPage, maxPerPage},
{5, maxPerPage + 1, maxPerPage},
}
for _, c := range cases {
p := validatePerPage(c.perPage)
assert.Equal(t, c.newPerPage, p, fmt.Sprintf("%v", c))
}
}