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  1. package core
  2. import (
  3. "fmt"
  4. "testing"
  5. "github.com/stretchr/testify/assert"
  6. )
  7. func TestPaginationPage(t *testing.T) {
  8. cases := []struct {
  9. totalCount int
  10. perPage int
  11. page int
  12. newPage int
  13. expErr bool
  14. }{
  15. {0, 10, 1, 1, false},
  16. {0, 10, 0, 1, false},
  17. {0, 10, 1, 1, false},
  18. {0, 10, 2, 0, true},
  19. {5, 10, -1, 0, true},
  20. {5, 10, 0, 1, false},
  21. {5, 10, 1, 1, false},
  22. {5, 10, 2, 0, true},
  23. {5, 10, 2, 0, true},
  24. {5, 5, 1, 1, false},
  25. {5, 5, 2, 0, true},
  26. {5, 5, 3, 0, true},
  27. {5, 3, 2, 2, false},
  28. {5, 3, 3, 0, true},
  29. {5, 2, 2, 2, false},
  30. {5, 2, 3, 3, false},
  31. {5, 2, 4, 0, true},
  32. }
  33. for _, c := range cases {
  34. p, err := validatePage(c.page, c.perPage, c.totalCount)
  35. if c.expErr {
  36. assert.Error(t, err)
  37. continue
  38. }
  39. assert.Equal(t, c.newPage, p, fmt.Sprintf("%v", c))
  40. }
  41. }
  42. func TestPaginationPerPage(t *testing.T) {
  43. cases := []struct {
  44. totalCount int
  45. perPage int
  46. newPerPage int
  47. }{
  48. {5, 0, defaultPerPage},
  49. {5, 1, 1},
  50. {5, 2, 2},
  51. {5, defaultPerPage, defaultPerPage},
  52. {5, maxPerPage - 1, maxPerPage - 1},
  53. {5, maxPerPage, maxPerPage},
  54. {5, maxPerPage + 1, maxPerPage},
  55. }
  56. for _, c := range cases {
  57. p := validatePerPage(c.perPage)
  58. assert.Equal(t, c.newPerPage, p, fmt.Sprintf("%v", c))
  59. }
  60. }