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reader_test.go
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/
reader_test.go
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package ico
import (
"bytes"
"testing"
"github.com/sergeymakinen/go-ico/internal/testutil"
)
func TestDecodeAll(t *testing.T) {
b := testutil.Icon.MustRead()
mm, err := DecodeAll(bytes.NewReader(b))
if err != nil {
t.Fatalf("DecodeAll() = _, %v; want nil", err)
}
testutil.CompareIconDir(t, testutil.Icon, nil, mm)
}
func TestDecode(t *testing.T) {
b := testutil.Icon.MustRead()
m, err := Decode(bytes.NewReader(b))
if err != nil {
t.Fatalf("Decode() = _, %v; want nil", err)
}
testutil.Compare(t, testutil.Icon.Entries[11].MustDecode(), m)
}
func TestDecodeShouldFail(t *testing.T) {
b := make([]byte, 10)
_, err := Decode(bytes.NewReader(b))
if expected := "ico: invalid format: not an ICO file"; err == nil || err.Error() != expected {
t.Fatalf("Decode() = _, %v; want %s", err, expected)
}
}
func TestDecodeConfig(t *testing.T) {
b := testutil.Icon.MustRead()
config, err := DecodeConfig(bytes.NewReader(b))
if err != nil {
t.Fatalf("DecodeConfig() = _, %v; want nil", err)
}
if expected := 256; config.Width != expected {
t.Errorf("image.Config.Width = %d; want %d", config.Width, expected)
}
if expected := 256; config.Height != expected {
t.Errorf("image.Config.Height = %d; want %d", config.Height, expected)
}
}
func TestDecodeConfigShouldFail(t *testing.T) {
b := make([]byte, 10)
_, err := DecodeConfig(bytes.NewReader(b))
if expected := "ico: invalid format: not an ICO file"; err == nil || err.Error() != expected {
t.Fatalf("DecodeConfig() = _, %v; want %s", err, expected)
}
}