168 lines
3.5 KiB
Go
168 lines
3.5 KiB
Go
package null
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import (
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"encoding/json"
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"testing"
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)
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var (
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uintJSON = []byte(`12345`)
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)
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func TestUintFrom(t *testing.T) {
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i := UintFrom(12345)
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assertUint(t, i, "UintFrom()")
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zero := UintFrom(0)
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if !zero.Valid {
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t.Error("UintFrom(0)", "is invalid, but should be valid")
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}
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}
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func TestUintFromPtr(t *testing.T) {
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n := uint(12345)
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iptr := &n
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i := UintFromPtr(iptr)
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assertUint(t, i, "UintFromPtr()")
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null := UintFromPtr(nil)
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assertNullUint(t, null, "UintFromPtr(nil)")
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}
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func TestUnmarshalUint(t *testing.T) {
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var i Uint
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err := json.Unmarshal(uintJSON, &i)
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maybePanic(err)
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assertUint(t, i, "uint json")
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var null Uint
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err = json.Unmarshal(nullJSON, &null)
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maybePanic(err)
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assertNullUint(t, null, "null json")
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var badType Uint
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err = json.Unmarshal(boolJSON, &badType)
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if err == nil {
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panic("err should not be nil")
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}
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assertNullUint(t, badType, "wrong type json")
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var invalid Uint
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err = invalid.UnmarshalJSON(invalidJSON)
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if _, ok := err.(*json.SyntaxError); !ok {
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t.Errorf("expected json.SyntaxError, not %T", err)
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}
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assertNullUint(t, invalid, "invalid json")
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}
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func TestUnmarshalNonUintegerNumber(t *testing.T) {
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var i Uint
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err := json.Unmarshal(float64JSON, &i)
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if err == nil {
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panic("err should be present; non-uinteger number coerced to uint")
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}
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}
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func TestTextUnmarshalUint(t *testing.T) {
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var i Uint
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err := i.UnmarshalText([]byte("12345"))
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maybePanic(err)
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assertUint(t, i, "UnmarshalText() uint")
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var blank Uint
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err = blank.UnmarshalText([]byte(""))
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maybePanic(err)
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assertNullUint(t, blank, "UnmarshalText() empty uint")
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}
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func TestMarshalUint(t *testing.T) {
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i := UintFrom(12345)
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data, err := json.Marshal(i)
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maybePanic(err)
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assertJSONEquals(t, data, "12345", "non-empty json marshal")
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// invalid values should be encoded as null
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null := NewUint(0, false)
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data, err = json.Marshal(null)
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maybePanic(err)
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assertJSONEquals(t, data, "null", "null json marshal")
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}
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func TestMarshalUintText(t *testing.T) {
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i := UintFrom(12345)
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data, err := i.MarshalText()
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maybePanic(err)
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assertJSONEquals(t, data, "12345", "non-empty text marshal")
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// invalid values should be encoded as null
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null := NewUint(0, false)
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data, err = null.MarshalText()
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maybePanic(err)
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assertJSONEquals(t, data, "", "null text marshal")
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}
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func TestUintPointer(t *testing.T) {
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i := UintFrom(12345)
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ptr := i.Ptr()
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if *ptr != 12345 {
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t.Errorf("bad %s uint: %#v ≠ %d\n", "pointer", ptr, 12345)
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}
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null := NewUint(0, false)
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ptr = null.Ptr()
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if ptr != nil {
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t.Errorf("bad %s uint: %#v ≠ %s\n", "nil pointer", ptr, "nil")
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}
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}
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func TestUintIsZero(t *testing.T) {
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i := UintFrom(12345)
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if i.IsZero() {
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t.Errorf("IsZero() should be false")
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}
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null := NewUint(0, false)
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if !null.IsZero() {
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t.Errorf("IsZero() should be true")
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}
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zero := NewUint(0, true)
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if zero.IsZero() {
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t.Errorf("IsZero() should be false")
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}
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}
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func TestUintSetValid(t *testing.T) {
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change := NewUint(0, false)
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assertNullUint(t, change, "SetValid()")
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change.SetValid(12345)
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assertUint(t, change, "SetValid()")
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}
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func TestUintScan(t *testing.T) {
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var i Uint
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err := i.Scan(12345)
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maybePanic(err)
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assertUint(t, i, "scanned uint")
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var null Uint
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err = null.Scan(nil)
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maybePanic(err)
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assertNullUint(t, null, "scanned null")
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}
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func assertUint(t *testing.T, i Uint, from string) {
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if i.Uint != 12345 {
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t.Errorf("bad %s uint: %d ≠ %d\n", from, i.Uint, 12345)
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}
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if !i.Valid {
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t.Error(from, "is invalid, but should be valid")
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}
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}
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func assertNullUint(t *testing.T, i Uint, from string) {
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if i.Valid {
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t.Error(from, "is valid, but should be invalid")
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}
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}
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