go-sqlite3-hak5/callback_test.go

117 lines
3.2 KiB
Go

// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
//
// Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
// +build cgo
package sqlite3
import (
"errors"
"math"
"reflect"
"testing"
)
func TestCallbackArgCast(t *testing.T) {
intConv := callbackSyntheticForTests(reflect.ValueOf(int64(math.MaxInt64)), nil)
floatConv := callbackSyntheticForTests(reflect.ValueOf(float64(math.MaxFloat64)), nil)
errConv := callbackSyntheticForTests(reflect.Value{}, errors.New("test"))
tests := []struct {
f callbackArgConverter
o reflect.Value
}{
{intConv, reflect.ValueOf(int8(-1))},
{intConv, reflect.ValueOf(int16(-1))},
{intConv, reflect.ValueOf(int32(-1))},
{intConv, reflect.ValueOf(uint8(math.MaxUint8))},
{intConv, reflect.ValueOf(uint16(math.MaxUint16))},
{intConv, reflect.ValueOf(uint32(math.MaxUint32))},
// Special case, int64->uint64 is only 1<<63 - 1, not 1<<64 - 1
{intConv, reflect.ValueOf(uint64(math.MaxInt64))},
{floatConv, reflect.ValueOf(float32(math.Inf(1)))},
}
for _, test := range tests {
conv := callbackArgCast{test.f, test.o.Type()}
val, err := conv.Run(nil)
if err != nil {
t.Errorf("Couldn't convert to %s: %s", test.o.Type(), err)
} else if !reflect.DeepEqual(val.Interface(), test.o.Interface()) {
t.Errorf("Unexpected result from converting to %s: got %v, want %v", test.o.Type(), val.Interface(), test.o.Interface())
}
}
conv := callbackArgCast{errConv, reflect.TypeOf(int8(0))}
_, err := conv.Run(nil)
if err == nil {
t.Errorf("Expected error during callbackArgCast, but got none")
}
}
func TestCallbackConverters(t *testing.T) {
tests := []struct {
v interface{}
err bool
}{
// Unfortunately, we can't tell which converter was returned,
// but we can at least check which types can be converted.
{[]byte{0}, false},
{"text", false},
{true, false},
{int8(0), false},
{int16(0), false},
{int32(0), false},
{int64(0), false},
{uint8(0), false},
{uint16(0), false},
{uint32(0), false},
{uint64(0), false},
{int(0), false},
{uint(0), false},
{float64(0), false},
{float32(0), false},
{func() {}, true},
{complex64(complex(0, 0)), true},
{complex128(complex(0, 0)), true},
{struct{}{}, true},
{map[string]string{}, true},
{[]string{}, true},
{(*int8)(nil), true},
{make(chan int), true},
}
for _, test := range tests {
_, err := callbackArg(reflect.TypeOf(test.v))
if test.err && err == nil {
t.Errorf("Expected an error when converting %s, got no error", reflect.TypeOf(test.v))
} else if !test.err && err != nil {
t.Errorf("Expected converter when converting %s, got error: %s", reflect.TypeOf(test.v), err)
}
}
for _, test := range tests {
_, err := callbackRet(reflect.TypeOf(test.v))
if test.err && err == nil {
t.Errorf("Expected an error when converting %s, got no error", reflect.TypeOf(test.v))
} else if !test.err && err != nil {
t.Errorf("Expected converter when converting %s, got error: %s", reflect.TypeOf(test.v), err)
}
}
}
func TestCallbackReturnAny(t *testing.T) {
udf := func() interface{} {
return 1
}
typ := reflect.TypeOf(udf)
_, err := callbackRet(typ.Out(0))
if err != nil {
t.Errorf("Expected valid callback for any return type, got: %s", err)
}
}