在Go中轻松安全地从一种数据类型转换为另一种数据类型
25'ten fazla konu seçemezsiniz Konular bir harf veya rakamla başlamalı, kısa çizgiler ('-') içerebilir ve en fazla 35 karakter uzunluğunda olabilir.
 
 
 

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  1. // Copyright © 2014 Steve Francia <spf@spf13.com>.
  2. //
  3. // Use of this source code is governed by an MIT-style
  4. // license that can be found in the LICENSE file.
  5. package cast
  6. import (
  7. "testing"
  8. "github.com/stretchr/testify/assert"
  9. )
  10. func TestToInt(t *testing.T) {
  11. var eight interface{} = 8
  12. assert.Equal(t, ToInt(8), 8)
  13. assert.Equal(t, ToInt(8.31), 8)
  14. assert.Equal(t, ToInt("8"), 8)
  15. assert.Equal(t, ToInt(true), 1)
  16. assert.Equal(t, ToInt(false), 0)
  17. assert.Equal(t, ToInt(eight), 8)
  18. }
  19. func TestToFloat64(t *testing.T) {
  20. var eight interface{} = 8
  21. assert.Equal(t, ToFloat64(8), 8.00)
  22. assert.Equal(t, ToFloat64(8.31), 8.31)
  23. assert.Equal(t, ToFloat64("8.31"), 8.31)
  24. assert.Equal(t, ToFloat64(eight), 8.0)
  25. }
  26. func TestToString(t *testing.T) {
  27. var foo interface{} = "one more time"
  28. assert.Equal(t, ToString(8), "8")
  29. assert.Equal(t, ToString(8.12), "8.12")
  30. assert.Equal(t, ToString([]byte("one time")), "one time")
  31. assert.Equal(t, ToString(foo), "one more time")
  32. assert.Equal(t, ToString(nil), "")
  33. }
  34. func TestMaps(t *testing.T) {
  35. var taxonomies = map[interface{}]interface{}{"tag": "tags", "group": "groups"}
  36. assert.Equal(t, ToStringMap(taxonomies), map[string]interface{}{"tag": "tags", "group": "groups"})
  37. }