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timestamp_test.go
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timestamp_test.go
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package null
import (
"encoding/json"
"math"
"strconv"
"testing"
"time"
)
var (
testTimestamp = time.Unix(1419196236, 0)
//nullJSON = []byte(`null`)
timestampJSON = []byte(`1419196236`)
nullTimestampJSON = []byte(`{"Time":1419196236,"Valid":true}`)
strTimestampJSON = []byte(`"2014-12-21T13:10:36-08:00"`)
)
func testTimestampstampFrom(t *testing.T) {
i := TimestampFrom(testTimestamp)
assertTimestamp(t, i, "TimestampFrom()")
zero := TimestampFrom(time.Time{})
if !zero.Valid {
t.Error("TimestampFrom(0)", "is invalid, but should be valid")
}
}
func testTimestampstampFromPtr(t *testing.T) {
n := testTimestamp
iptr := &n
i := TimestampFromPtr(iptr)
assertTimestamp(t, i, "TimestampFromPtr()")
null := TimestampFromPtr(nil)
assertNullTimestamp(t, null, "TimestampFromPtr(nil)")
}
func TestUnmarshalTimestamp(t *testing.T) {
var i Timestamp
err := json.Unmarshal(timestampJSON, &i)
maybePanic(err)
assertTimestamp(t, i, "int json")
var ni Timestamp
err = json.Unmarshal(nullTimestampJSON, &ni)
maybePanic(err)
assertTimestamp(t, ni, "pq.NullTime json")
var si Timestamp
err = json.Unmarshal(strTimestampJSON, &si)
maybePanic(err)
assertTimestamp(t, si, "string json")
var null Timestamp
err = json.Unmarshal(nullJSON, &null)
maybePanic(err)
assertNullTimestamp(t, null, "null json")
var badType Timestamp
err = json.Unmarshal(boolJSON, &badType)
if err == nil {
panic("err should not be nil")
}
assertNullTimestamp(t, badType, "wrong type json")
}
func TestUnmarshalNonTimestampNumber(t *testing.T) {
var i Timestamp
err := json.Unmarshal(floatJSON, &i)
if err == nil {
panic("err should be present; non-integer number coerced to time.Time")
}
}
func TestUnmarshalTimestampOverflow(t *testing.T) {
int64Overflow := uint64(math.MaxInt64)
// Max int64 should decode successfully
var i Timestamp
err := json.Unmarshal([]byte(strconv.FormatUint(int64Overflow, 10)), &i)
maybePanic(err)
// Attempt to overflow
int64Overflow++
err = json.Unmarshal([]byte(strconv.FormatUint(int64Overflow, 10)), &i)
if err == nil {
panic("err should be present; decoded value overflows int64")
}
}
func TestTextUnmarshalTimestamp(t *testing.T) {
var i Timestamp
err := i.UnmarshalText(timestampJSON)
maybePanic(err)
assertTimestamp(t, i, "UnmarshalText() time.Time")
var blank Timestamp
err = blank.UnmarshalText([]byte(""))
maybePanic(err)
assertNullTimestamp(t, blank, "UnmarshalText() empty time.Time")
var null Timestamp
err = null.UnmarshalText([]byte("null"))
maybePanic(err)
assertNullTimestamp(t, null, `UnmarshalText() "null"`)
}
func TestMarshalTimestamp(t *testing.T) {
i := TimestampFrom(testTimestamp)
data, err := json.Marshal(i)
maybePanic(err)
assertJSONEquals(t, data, "1419196236", "non-empty json marshal")
// invalid values should be encoded as null
null := NewTimestamp(time.Time{}, false)
data, err = json.Marshal(null)
maybePanic(err)
assertJSONEquals(t, data, "null", "null json marshal")
}
func TestMarshalTimestampText(t *testing.T) {
i := TimestampFrom(testTimestamp)
data, err := i.MarshalText()
maybePanic(err)
assertJSONEquals(t, data, "1419196236", "non-empty text marshal")
// invalid values should be encoded as null
null := NewTimestamp(time.Time{}, false)
data, err = null.MarshalText()
maybePanic(err)
assertJSONEquals(t, data, "", "null text marshal")
}
func testTimestampstampPointer(t *testing.T) {
i := TimestampFrom(testTimestamp)
ptr := i.Ptr()
if *ptr != testTimestamp {
t.Errorf("bad %s time.Time: %#v ≠ %s\n", "pointer", ptr, 12345)
}
null := NewTimestamp(time.Time{}, false)
ptr = null.Ptr()
if ptr != nil {
t.Errorf("bad %s time.Time: %#v ≠ %s\n", "nil pointer", ptr, "nil")
}
}
func testTimestampstampIsZero(t *testing.T) {
i := TimestampFrom(testTimestamp)
if i.IsZero() {
t.Errorf("IsZero() should be false")
}
null := NewTimestamp(time.Time{}, false)
if !null.IsZero() {
t.Errorf("IsZero() should be true")
}
zero := NewTimestamp(time.Time{}, true)
if zero.IsZero() {
t.Errorf("IsZero() should be false")
}
}
func testTimestampstampSetValid(t *testing.T) {
change := NewTimestamp(time.Time{}, false)
assertNullTimestamp(t, change, "SetValid()")
change.SetValid(testTimestamp)
assertTimestamp(t, change, "SetValid()")
}
func testTimestampstampScan(t *testing.T) {
var i Timestamp
err := i.Scan(testTimestamp)
maybePanic(err)
assertTimestamp(t, i, "scanned time.Time")
var null Timestamp
err = null.Scan(nil)
maybePanic(err)
assertNullTimestamp(t, null, "scanned null")
}
func assertTimestamp(t *testing.T, i Timestamp, from string) {
if i.Time != testTimestamp {
t.Errorf("bad %s time.Time: %d ≠ %d\n", from, i.Time, testTimestamp)
}
if !i.Valid {
t.Error(from, "is invalid, but should be valid")
}
}
func assertNullTimestamp(t *testing.T, i Timestamp, from string) {
if i.Valid {
t.Error(from, "is valid, but should be invalid")
}
}