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to.func_test.go
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to.func_test.go
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package cast_test
import (
"errors"
"fmt"
"reflect"
"testing"
"github.com/bdlm/cast/v2"
)
func TestToFuncBool(t *testing.T) {
testFuncCases[bool](t, []testCase{
{in: true, expect: true, err: nil, expectErr: false},
{in: 1, expect: true, err: nil, expectErr: false},
{in: 0, expect: false, err: nil, expectErr: false},
{in: "hi", expect: false, err: nil, expectErr: true},
{in: float64(1.1), expect: true, err: nil, expectErr: false},
{in: float64(-1.1), expect: true, err: nil, expectErr: false},
})
}
func TestToFuncByte(t *testing.T) {
testFuncCases[byte](t, []testCase{
{in: "a", expect: byte(0), err: nil, expectErr: true},
{in: byte(1), expect: byte(1), err: nil, expectErr: false},
{in: byte(0), expect: byte(0), err: nil, expectErr: false},
{in: "hi", expect: byte(0), err: nil, expectErr: true},
{in: float64(1.1), expect: byte(1), err: nil, expectErr: false},
{in: float64(-1.1), expect: byte(0), err: nil, expectErr: true},
})
}
func TestToFuncInt(t *testing.T) {
testFuncCases[int](t, []testCase{
{in: 1, expect: int(1), err: nil, expectErr: false},
{in: "1", expect: int(1), err: nil, expectErr: false},
{in: 1.1, expect: int(1), err: nil, expectErr: false},
{in: "1.1", expect: int(1), err: nil, expectErr: false},
{in: 1.9, expect: int(1), err: nil, expectErr: false},
{in: "1.9", expect: int(1), err: nil, expectErr: false},
{in: -1, expect: int(-1), err: nil, expectErr: false},
{in: "-1", expect: int(-1), err: nil, expectErr: false},
{in: -1.9, expect: int(-1), err: nil, expectErr: false},
{in: "-1.9", expect: int(-1), err: nil, expectErr: false},
{in: "Hi!", expect: int(0), err: nil, expectErr: true},
})
testFuncCases[int8](t, []testCase{
{in: 1, expect: int8(1), err: nil, expectErr: false},
{in: "1", expect: int8(1), err: nil, expectErr: false},
{in: 1.1, expect: int8(1), err: nil, expectErr: false},
{in: "1.1", expect: int8(1), err: nil, expectErr: false},
{in: 1.9, expect: int8(1), err: nil, expectErr: false},
{in: "1.9", expect: int8(1), err: nil, expectErr: false},
{in: -1, expect: int8(-1), err: nil, expectErr: false},
{in: "-1", expect: int8(-1), err: nil, expectErr: false},
{in: -1.9, expect: int8(-1), err: nil, expectErr: false},
{in: "-1.9", expect: int8(-1), err: nil, expectErr: false},
{in: "Hi!", expect: int8(0), err: nil, expectErr: true},
})
testFuncCases[int16](t, []testCase{
{in: 1, expect: int16(1), err: nil, expectErr: false},
{in: "1", expect: int16(1), err: nil, expectErr: false},
{in: 1.1, expect: int16(1), err: nil, expectErr: false},
{in: "1.1", expect: int16(1), err: nil, expectErr: false},
{in: 1.9, expect: int16(1), err: nil, expectErr: false},
{in: "1.9", expect: int16(1), err: nil, expectErr: false},
{in: -1, expect: int16(-1), err: nil, expectErr: false},
{in: "-1", expect: int16(-1), err: nil, expectErr: false},
{in: -1.9, expect: int16(-1), err: nil, expectErr: false},
{in: "-1.9", expect: int16(-1), err: nil, expectErr: false},
{in: "Hi!", expect: int16(0), err: nil, expectErr: true},
})
testFuncCases[int32](t, []testCase{
{in: 1, expect: int32(1), err: nil, expectErr: false},
{in: "1", expect: int32(1), err: nil, expectErr: false},
{in: 1.1, expect: int32(1), err: nil, expectErr: false},
{in: "1.1", expect: int32(1), err: nil, expectErr: false},
{in: 1.9, expect: int32(1), err: nil, expectErr: false},
{in: "1.9", expect: int32(1), err: nil, expectErr: false},
{in: -1, expect: int32(-1), err: nil, expectErr: false},
{in: "-1", expect: int32(-1), err: nil, expectErr: false},
{in: -1.9, expect: int32(-1), err: nil, expectErr: false},
{in: "-1.9", expect: int32(-1), err: nil, expectErr: false},
{in: "Hi!", expect: int32(0), err: nil, expectErr: true},
})
testFuncCases[int64](t, []testCase{
{in: 1, expect: int64(1), err: nil, expectErr: false},
{in: "1", expect: int64(1), err: nil, expectErr: false},
{in: 1.1, expect: int64(1), err: nil, expectErr: false},
{in: "1.1", expect: int64(1), err: nil, expectErr: false},
{in: 1.9, expect: int64(1), err: nil, expectErr: false},
{in: "1.9", expect: int64(1), err: nil, expectErr: false},
{in: -1, expect: int64(-1), err: nil, expectErr: false},
{in: "-1", expect: int64(-1), err: nil, expectErr: false},
{in: -1.9, expect: int64(-1), err: nil, expectErr: false},
{in: "-1.9", expect: int64(-1), err: nil, expectErr: false},
{in: "Hi!", expect: int64(0), err: nil, expectErr: true},
})
}
func TestToFuncUint(t *testing.T) {
testFuncCases[uint](t, []testCase{
{in: 1, expect: uint(1), err: nil, expectErr: false},
{in: "1", expect: uint(1), err: nil, expectErr: false},
{in: 1.1, expect: uint(1), err: nil, expectErr: false},
{in: "1.1", expect: uint(1), err: nil, expectErr: false},
{in: 1.9, expect: uint(1), err: nil, expectErr: false},
{in: "1.9", expect: uint(1), err: nil, expectErr: false},
{in: -1, expect: uint(0), err: nil, expectErr: true},
{in: "-1", expect: uint(0), err: nil, expectErr: true},
{in: -1.9, expect: uint(0), err: nil, expectErr: true},
{in: "-1.9", expect: uint(0), err: nil, expectErr: true},
{in: "Hi!", expect: uint(0), err: nil, expectErr: true},
})
testFuncCases[uint8](t, []testCase{
{in: 1, expect: uint8(1), err: nil, expectErr: false},
{in: "1", expect: uint8(1), err: nil, expectErr: false},
{in: 1.1, expect: uint8(1), err: nil, expectErr: false},
{in: "1.1", expect: uint8(1), err: nil, expectErr: false},
{in: 1.9, expect: uint8(1), err: nil, expectErr: false},
{in: "1.9", expect: uint8(1), err: nil, expectErr: false},
{in: -1, expect: uint8(0), err: nil, expectErr: true},
{in: "-1", expect: uint8(0), err: nil, expectErr: true},
{in: -1.9, expect: uint8(0), err: nil, expectErr: true},
{in: "-1.9", expect: uint8(0), err: nil, expectErr: true},
{in: "Hi!", expect: uint8(0), err: nil, expectErr: true},
})
testFuncCases[uint16](t, []testCase{
{in: 1, expect: uint16(1), err: nil, expectErr: false},
{in: "1", expect: uint16(1), err: nil, expectErr: false},
{in: 1.1, expect: uint16(1), err: nil, expectErr: false},
{in: "1.1", expect: uint16(1), err: nil, expectErr: false},
{in: 1.9, expect: uint16(1), err: nil, expectErr: false},
{in: "1.9", expect: uint16(1), err: nil, expectErr: false},
{in: -1, expect: uint16(0), err: nil, expectErr: true},
{in: "-1", expect: uint16(0), err: nil, expectErr: true},
{in: -1.9, expect: uint16(0), err: nil, expectErr: true},
{in: "-1.9", expect: uint16(0), err: nil, expectErr: true},
{in: "Hi!", expect: uint16(0), err: nil, expectErr: true},
})
testFuncCases[uint32](t, []testCase{
{in: 1, expect: uint32(1), err: nil, expectErr: false},
{in: "1", expect: uint32(1), err: nil, expectErr: false},
{in: 1.1, expect: uint32(1), err: nil, expectErr: false},
{in: "1.1", expect: uint32(1), err: nil, expectErr: false},
{in: 1.9, expect: uint32(1), err: nil, expectErr: false},
{in: "1.9", expect: uint32(1), err: nil, expectErr: false},
{in: -1, expect: uint32(0), err: nil, expectErr: true},
{in: "-1", expect: uint32(0), err: nil, expectErr: true},
{in: -1.9, expect: uint32(0), err: nil, expectErr: true},
{in: "-1.9", expect: uint32(0), err: nil, expectErr: true},
{in: "Hi!", expect: uint32(0), err: nil, expectErr: true},
})
testFuncCases[uint64](t, []testCase{
{in: 1, expect: uint64(1), err: nil, expectErr: false},
{in: "1", expect: uint64(1), err: nil, expectErr: false},
{in: 1.1, expect: uint64(1), err: nil, expectErr: false},
{in: "1.1", expect: uint64(1), err: nil, expectErr: false},
{in: 1.9, expect: uint64(1), err: nil, expectErr: false},
{in: "1.9", expect: uint64(1), err: nil, expectErr: false},
{in: -1, expect: uint64(0), err: nil, expectErr: true},
{in: "-1", expect: uint64(0), err: nil, expectErr: true},
{in: -1.9, expect: uint64(0), err: nil, expectErr: true},
{in: "-1.9", expect: uint64(0), err: nil, expectErr: true},
{in: "Hi!", expect: uint64(0), err: nil, expectErr: true},
})
testFuncCases[uintptr](t, []testCase{
{in: 1, expect: uintptr(1), err: nil, expectErr: false},
{in: "1", expect: uintptr(1), err: nil, expectErr: false},
{in: 1.1, expect: uintptr(1), err: nil, expectErr: false},
{in: "1.1", expect: uintptr(1), err: nil, expectErr: false},
{in: 1.9, expect: uintptr(1), err: nil, expectErr: false},
{in: "1.9", expect: uintptr(1), err: nil, expectErr: false},
{in: -1, expect: uintptr(0), err: nil, expectErr: true},
{in: "-1", expect: uintptr(0), err: nil, expectErr: true},
{in: -1.9, expect: uintptr(0), err: nil, expectErr: true},
{in: "-1.9", expect: uintptr(0), err: nil, expectErr: true},
})
}
func TestToFuncFloat(t *testing.T) {
testFuncCases[float32](t, []testCase{
{in: 1, expect: float32(1), err: nil, expectErr: false},
{in: "1", expect: float32(1), err: nil, expectErr: false},
{in: 1.1, expect: float32(1.1), err: nil, expectErr: false},
{in: "1.1", expect: float32(1.1), err: nil, expectErr: false},
{in: 1.9, expect: float32(1.9), err: nil, expectErr: false},
{in: "1.9", expect: float32(1.9), err: nil, expectErr: false},
{in: -1, expect: float32(-1), err: nil, expectErr: false},
{in: "-1", expect: float32(-1), err: nil, expectErr: false},
{in: -1.9, expect: float32(-1.9), err: nil, expectErr: false},
{in: "-1.9", expect: float32(-1.9), err: nil, expectErr: false},
{in: "Hi!", expect: float32(0), err: nil, expectErr: true},
})
testFuncCases[float64](t, []testCase{
{in: 1, expect: float64(1), err: nil, expectErr: false},
{in: "1", expect: float64(1), err: nil, expectErr: false},
{in: 1.1, expect: float64(1.1), err: nil, expectErr: false},
{in: "1.1", expect: float64(1.1), err: nil, expectErr: false},
{in: 1.9, expect: float64(1.9), err: nil, expectErr: false},
{in: "1.9", expect: float64(1.9), err: nil, expectErr: false},
{in: -1, expect: float64(-1), err: nil, expectErr: false},
{in: "-1", expect: float64(-1), err: nil, expectErr: false},
{in: -1.9, expect: float64(-1.9), err: nil, expectErr: false},
{in: "-1.9", expect: float64(-1.9), err: nil, expectErr: false},
{in: "Hi!", expect: float64(0), err: nil, expectErr: true},
})
}
func TestToFuncComplex(t *testing.T) {
testFuncCases[complex64](t, []testCase{
{in: 1, expect: complex64(1), err: nil, expectErr: false},
{in: "1", expect: complex64(1), err: nil, expectErr: false},
{in: 1.1, expect: complex64(1.1), err: nil, expectErr: false},
{in: "1.1", expect: complex64(1.1), err: nil, expectErr: false},
{in: 1.9, expect: complex64(1.9), err: nil, expectErr: false},
{in: "1.9", expect: complex64(1.9), err: nil, expectErr: false},
{in: -1, expect: complex64(-1), err: nil, expectErr: false},
{in: "-1", expect: complex64(-1), err: nil, expectErr: false},
{in: -1.9, expect: complex64(-1.9), err: nil, expectErr: false},
{in: "-1.9", expect: complex64(-1.9), err: nil, expectErr: false},
{in: "Hi!", expect: complex64(0), err: nil, expectErr: true},
})
testFuncCases[complex128](t, []testCase{
{in: 1, expect: complex128(1), err: nil, expectErr: false},
{in: "1", expect: complex128(1), err: nil, expectErr: false},
{in: 1.1, expect: complex128(1.1), err: nil, expectErr: false},
{in: "1.1", expect: complex128(1.1), err: nil, expectErr: false},
{in: 1.9, expect: complex128(1.9), err: nil, expectErr: false},
{in: "1.9", expect: complex128(1.9), err: nil, expectErr: false},
{in: -1, expect: complex128(-1), err: nil, expectErr: false},
{in: "-1", expect: complex128(-1), err: nil, expectErr: false},
{in: -1.9, expect: complex128(-1.9), err: nil, expectErr: false},
{in: "-1.9", expect: complex128(-1.9), err: nil, expectErr: false},
{in: "Hi!", expect: complex128(0), err: nil, expectErr: true},
})
}
func testFuncCases[TTo any](t *testing.T, cases []testCase) {
var typ TTo
name := fmt.Sprintf("%T", typ)
for _, test := range cases {
t.Run(fmt.Sprintf("%s: %v", name, test.in), func(t *testing.T) {
var result TTo
actual, err := cast.ToE[cast.Func[TTo]](test.in)
if nil == err {
result = actual()
}
testInfo := fmt.Sprintf(`
case: ToE[Func[%s]]
input: %v (%T)
expect error: %v; actual error: %v
expected result: %v (%T); actual result: %v (%T)
result fn: %#v, (%T)
test: %#v
`,
name,
test.in,
test.in,
test.expectErr,
err,
test.expect,
test.expect,
result,
result,
actual,
actual,
test,
)
//fmt.Println(testInfo)
if !test.expectErr && err != nil {
t.Error(1, testInfo)
} else if test.expectErr && err == nil {
t.Error(2, testInfo)
} else if err != nil && !errors.Is(err, cast.Error) {
t.Error(3, testInfo)
} else if nil == err && !reflect.DeepEqual(result, test.expect.(TTo)) {
t.Error(4, testInfo)
}
})
}
}