173 lines
4 KiB
Go
173 lines
4 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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uint64JSON = []byte(`18446744073709551614`)
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)
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func TestUint64From(t *testing.T) {
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i := Uint64From(18446744073709551614)
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assertUint64(t, i, "Uint64From()")
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zero := Uint64From(0)
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if !zero.Valid {
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t.Error("Uint64From(0)", "is invalid, but should be valid")
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}
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}
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func TestUint64FromPtr(t *testing.T) {
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n := uint64(18446744073709551614)
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iptr := &n
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i := Uint64FromPtr(iptr)
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assertUint64(t, i, "Uint64FromPtr()")
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null := Uint64FromPtr(nil)
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assertNullUint64(t, null, "Uint64FromPtr(nil)")
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}
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func TestUnmarshalUint64(t *testing.T) {
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var i Uint64
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err := json.Unmarshal(uint64JSON, &i)
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maybePanic(err)
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assertUint64(t, i, "uint64 json")
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var null Uint64
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err = json.Unmarshal(nullJSON, &null)
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maybePanic(err)
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assertNullUint64(t, null, "null json")
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var badType Uint64
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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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assertNullUint64(t, badType, "wrong type json")
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var invalid Uint64
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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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assertNullUint64(t, invalid, "invalid json")
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}
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func TestUnmarshalNonUintegerNumber64(t *testing.T) {
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var i Uint64
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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-integer number coerced to uint64")
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}
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}
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func TestTextUnmarshalUint64(t *testing.T) {
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var i Uint64
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err := i.UnmarshalText([]byte("18446744073709551614"))
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maybePanic(err)
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assertUint64(t, i, "UnmarshalText() uint64")
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var blank Uint64
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err = blank.UnmarshalText([]byte(""))
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maybePanic(err)
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assertNullUint64(t, blank, "UnmarshalText() empty uint64")
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}
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func TestMarshalUint64(t *testing.T) {
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i := Uint64From(18446744073709551614)
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data, err := json.Marshal(i)
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maybePanic(err)
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assertJSONEquals(t, data, "18446744073709551614", "non-empty json marshal")
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// invalid values should be encoded as null
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null := NewUint64(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 TestMarshalUint64Text(t *testing.T) {
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i := Uint64From(18446744073709551614)
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data, err := i.MarshalText()
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maybePanic(err)
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assertJSONEquals(t, data, "18446744073709551614", "non-empty text marshal")
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// invalid values should be encoded as null
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null := NewUint64(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 TestUint64Pointer(t *testing.T) {
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i := Uint64From(18446744073709551614)
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ptr := i.Ptr()
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if *ptr != 18446744073709551614 {
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t.Errorf("bad %s uint64: %#v ≠ %d\n", "pointer", ptr, uint64(18446744073709551614))
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}
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null := NewUint64(0, false)
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ptr = null.Ptr()
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if ptr != nil {
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t.Errorf("bad %s uint64: %#v ≠ %s\n", "nil pointer", ptr, "nil")
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}
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}
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func TestUint64IsNull(t *testing.T) {
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i := Uint64From(18446744073709551614)
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if i.IsNull() {
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t.Errorf("IsNull() should be false")
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}
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null := NewUint64(0, false)
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if !null.IsNull() {
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t.Errorf("IsNull() should be true")
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}
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zero := NewUint64(0, true)
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if zero.IsNull() {
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t.Errorf("IsNull() should be false")
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}
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var testInt interface{}
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testInt = zero
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if _, ok := testInt.(Nullable); !ok {
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t.Errorf("Nullable interface should be implemented")
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}
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}
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func TestUint64SetValid(t *testing.T) {
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change := NewUint64(0, false)
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assertNullUint64(t, change, "SetValid()")
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change.SetValid(18446744073709551614)
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assertUint64(t, change, "SetValid()")
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}
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func TestUint64Scan(t *testing.T) {
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var i Uint64
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err := i.Scan(uint64(18446744073709551614))
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maybePanic(err)
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assertUint64(t, i, "scanned uint64")
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var null Uint64
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err = null.Scan(nil)
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maybePanic(err)
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assertNullUint64(t, null, "scanned null")
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}
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func assertUint64(t *testing.T, i Uint64, from string) {
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if i.Uint64 != 18446744073709551614 {
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t.Errorf("bad %s uint64: %d ≠ %d\n", from, i.Uint64, uint64(18446744073709551614))
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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 assertNullUint64(t *testing.T, i Uint64, 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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