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bool_test.go
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bool_test.go
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package null
import (
"encoding/json"
"testing"
)
var (
boolJSON = []byte(`true`)
falseJSON = []byte(`false`)
)
func TestBoolFrom(t *testing.T) {
b := BoolFrom(true)
assertBool(t, b, "BoolFrom()")
zero := BoolFrom(false)
if !zero.Valid {
t.Error("BoolFrom(false)", "is invalid, but should be valid")
}
}
func TestBoolFromPtr(t *testing.T) {
n := true
bptr := &n
b := BoolFromPtr(bptr)
assertBool(t, b, "BoolFromPtr()")
null := BoolFromPtr(nil)
assertNullBool(t, null, "BoolFromPtr(nil)")
}
func TestUnmarshalBool(t *testing.T) {
var b Bool
err := json.Unmarshal(boolJSON, &b)
maybePanic(err)
assertBool(t, b, "bool json")
var null Bool
err = json.Unmarshal(nullJSON, &null)
maybePanic(err)
assertNullBool(t, null, "null json")
var badType Bool
err = json.Unmarshal(intJSON, &badType)
if err == nil {
panic("err should not be nil")
}
assertNullBool(t, badType, "wrong type json")
var invalid Bool
err = invalid.UnmarshalJSON(invalidJSON)
if _, ok := err.(*json.SyntaxError); !ok {
t.Errorf("expected json.SyntaxError, not %T", err)
}
}
func TestTextUnmarshalBool(t *testing.T) {
var b Bool
err := b.UnmarshalText([]byte("true"))
maybePanic(err)
assertBool(t, b, "UnmarshalText() bool")
var zero Bool
err = zero.UnmarshalText([]byte("false"))
maybePanic(err)
assertFalseBool(t, zero, "UnmarshalText() false")
var blank Bool
err = blank.UnmarshalText([]byte(""))
maybePanic(err)
assertNullBool(t, blank, "UnmarshalText() empty bool")
var invalid Bool
err = invalid.UnmarshalText([]byte(":D"))
if err == nil {
panic("err should not be nil")
}
assertNullBool(t, invalid, "invalid json")
}
func TestMarshalBool(t *testing.T) {
b := BoolFrom(true)
data, err := json.Marshal(b)
maybePanic(err)
assertJSONEquals(t, data, "true", "non-empty json marshal")
zero := NewBool(false, true)
data, err = json.Marshal(zero)
maybePanic(err)
assertJSONEquals(t, data, "false", "zero json marshal")
// invalid values should be encoded as null
null := NewBool(false, false)
data, err = json.Marshal(null)
maybePanic(err)
assertJSONEquals(t, data, "null", "null json marshal")
}
func TestMarshalBoolText(t *testing.T) {
b := BoolFrom(true)
data, err := b.MarshalText()
maybePanic(err)
assertJSONEquals(t, data, "true", "non-empty text marshal")
zero := NewBool(false, true)
data, err = zero.MarshalText()
maybePanic(err)
assertJSONEquals(t, data, "false", "zero text marshal")
// invalid values should be encoded as null
null := NewBool(false, false)
data, err = null.MarshalText()
maybePanic(err)
assertJSONEquals(t, data, "", "null text marshal")
}
func TestBoolPointer(t *testing.T) {
b := BoolFrom(true)
ptr := b.Ptr()
if *ptr != true {
t.Errorf("bad %s bool: %#v ≠ %v\n", "pointer", ptr, true)
}
null := NewBool(false, false)
ptr = null.Ptr()
if ptr != nil {
t.Errorf("bad %s bool: %#v ≠ %s\n", "nil pointer", ptr, "nil")
}
}
func TestBoolIsZero(t *testing.T) {
b := BoolFrom(true)
if b.IsZero() {
t.Errorf("IsZero() should be false")
}
null := NewBool(false, false)
if !null.IsZero() {
t.Errorf("IsZero() should be true")
}
zero := NewBool(false, true)
if zero.IsZero() {
t.Errorf("IsZero() should be false")
}
}
func TestBoolSetValid(t *testing.T) {
change := NewBool(false, false)
assertNullBool(t, change, "SetValid()")
change.SetValid(true)
assertBool(t, change, "SetValid()")
}
func TestBoolScan(t *testing.T) {
var b Bool
err := b.Scan(true)
maybePanic(err)
assertBool(t, b, "scanned bool")
var null Bool
err = null.Scan(nil)
maybePanic(err)
assertNullBool(t, null, "scanned null")
}
func assertBool(t *testing.T, b Bool, from string) {
if b.Bool != true {
t.Errorf("bad %s bool: %v ≠ %v\n", from, b.Bool, true)
}
if !b.Valid {
t.Error(from, "is invalid, but should be valid")
}
}
func assertFalseBool(t *testing.T, b Bool, from string) {
if b.Bool != false {
t.Errorf("bad %s bool: %v ≠ %v\n", from, b.Bool, false)
}
if !b.Valid {
t.Error(from, "is invalid, but should be valid")
}
}
func assertNullBool(t *testing.T, b Bool, from string) {
if b.Valid {
t.Error(from, "is valid, but should be invalid")
}
}