/usr/share/gocode/src/gopkg.in/guregu/null.v3/zero/string_test.go is in golang-gopkg-guregu-null.v3-dev 3.1+git20160228.0.41961ce-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import (
"encoding/json"
"testing"
)
var (
stringJSON = []byte(`"test"`)
blankStringJSON = []byte(`""`)
nullStringJSON = []byte(`{"String":"test","Valid":true}`)
nullJSON = []byte(`null`)
invalidJSON = []byte(`:)`)
)
type stringInStruct struct {
Test String `json:"test,omitempty"`
}
func TestStringFrom(t *testing.T) {
str := StringFrom("test")
assertStr(t, str, "StringFrom() string")
null := StringFrom("")
assertNullStr(t, null, "StringFrom() empty string")
}
func TestUnmarshalString(t *testing.T) {
var str String
err := json.Unmarshal(stringJSON, &str)
maybePanic(err)
assertStr(t, str, "string json")
var ns String
err = json.Unmarshal(nullStringJSON, &ns)
maybePanic(err)
assertStr(t, ns, "sql.NullString json")
var blank String
err = json.Unmarshal(blankStringJSON, &blank)
maybePanic(err)
assertNullStr(t, blank, "blank string json")
var null String
err = json.Unmarshal(nullJSON, &null)
maybePanic(err)
assertNullStr(t, null, "null json")
var badType String
err = json.Unmarshal(boolJSON, &badType)
if err == nil {
panic("err should not be nil")
}
assertNullStr(t, badType, "wrong type json")
var invalid String
err = invalid.UnmarshalJSON(invalidJSON)
if _, ok := err.(*json.SyntaxError); !ok {
t.Errorf("expected json.SyntaxError, not %T", err)
}
assertNullStr(t, invalid, "invalid json")
}
func TestTextUnmarshalString(t *testing.T) {
var str String
err := str.UnmarshalText([]byte("test"))
maybePanic(err)
assertStr(t, str, "UnmarshalText() string")
var null String
err = null.UnmarshalText([]byte(""))
maybePanic(err)
assertNullStr(t, null, "UnmarshalText() empty string")
}
func TestMarshalString(t *testing.T) {
str := StringFrom("test")
data, err := json.Marshal(str)
maybePanic(err)
assertJSONEquals(t, data, `"test"`, "non-empty json marshal")
// invalid values should be encoded as an empty string
null := StringFrom("")
data, err = json.Marshal(null)
maybePanic(err)
assertJSONEquals(t, data, `""`, "empty json marshal")
}
// Tests omitempty... broken until Go 1.4
// func TestMarshalStringInStruct(t *testing.T) {
// obj := stringInStruct{Test: StringFrom("")}
// data, err := json.Marshal(obj)
// maybePanic(err)
// assertJSONEquals(t, data, `{}`, "null string in struct")
// }
func TestStringPointer(t *testing.T) {
str := StringFrom("test")
ptr := str.Ptr()
if *ptr != "test" {
t.Errorf("bad %s string: %#v ≠ %s\n", "pointer", ptr, "test")
}
null := StringFrom("")
ptr = null.Ptr()
if ptr != nil {
t.Errorf("bad %s string: %#v ≠ %s\n", "nil pointer", ptr, "nil")
}
}
func TestStringFromPointer(t *testing.T) {
test := "test"
testptr := &test
str := StringFromPtr(testptr)
assertStr(t, str, "StringFromPtr()")
testptr = nil
null := StringFromPtr(testptr)
assertNullStr(t, null, "StringFromPtr()")
ptr := null.Ptr()
if ptr != nil {
t.Errorf("bad %s string: %#v ≠ %s\n", "nil pointer", ptr, "nil")
}
}
func TestStringIsZero(t *testing.T) {
str := StringFrom("test")
if str.IsZero() {
t.Errorf("IsZero() should be false")
}
null := StringFrom("")
if !null.IsZero() {
t.Errorf("IsZero() should be true")
}
empty := NewString("", true)
if !empty.IsZero() {
t.Errorf("IsZero() should be true")
}
}
func TestStringScan(t *testing.T) {
var str String
err := str.Scan("test")
maybePanic(err)
assertStr(t, str, "scanned string")
var null String
err = null.Scan(nil)
maybePanic(err)
assertNullStr(t, null, "scanned null")
}
func TestStringSetValid(t *testing.T) {
change := NewString("", false)
assertNullStr(t, change, "SetValid()")
change.SetValid("test")
assertStr(t, change, "SetValid()")
}
func maybePanic(err error) {
if err != nil {
panic(err)
}
}
func assertStr(t *testing.T, s String, from string) {
if s.String != "test" {
t.Errorf("bad %s string: %s ≠ %s\n", from, s.String, "test")
}
if !s.Valid {
t.Error(from, "is invalid, but should be valid")
}
}
func assertNullStr(t *testing.T, s String, from string) {
if s.Valid {
t.Error(from, "is valid, but should be invalid")
}
}
func assertJSONEquals(t *testing.T, data []byte, cmp string, from string) {
if string(data) != cmp {
t.Errorf("bad %s data: %s ≠ %s\n", from, data, cmp)
}
}
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