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)) } // nil case p, err := validatePage(nil, 1, 1) if assert.NoError(t, err) { assert.Equal(t, 1, p) } } 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)) } // nil case p := validatePerPage(nil) assert.Equal(t, defaultPerPage, p) }