118 lines
3.0 KiB
Go
118 lines
3.0 KiB
Go
package iconv
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import (
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"syscall"
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"testing"
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)
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type iconvTest struct {
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description string
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input string
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inputEncoding string
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output string
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outputEncoding string
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bytesRead int
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bytesWritten int
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err error
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}
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var iconvTests = []iconvTest{
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iconvTest{
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"simple utf-8 to latin1 conversion success",
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"Hello World!", "utf-8",
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"Hello World!", "latin1",
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12, 12, nil,
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},
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iconvTest{
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"invalid source encoding causes EINVAL",
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"", "doesnotexist",
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"", "utf-8",
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0, 0, syscall.EINVAL,
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},
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iconvTest{
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"invalid destination encoding causes EINVAL",
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"", "utf-8",
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"", "doesnotexist",
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0, 0, syscall.EINVAL,
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},
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iconvTest{
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"invalid input sequence causes EILSEQ",
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"\xFF", "utf-8",
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"", "latin1",
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0, 0, syscall.EILSEQ,
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},
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iconvTest{
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"invalid input causes partial output and EILSEQ",
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"Hello\xFF", "utf-8",
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"Hello", "latin1",
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5, 5, syscall.EILSEQ,
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},
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}
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func TestConvertString(t *testing.T) {
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for _, test := range iconvTests {
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// perform the conversion
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output, err := ConvertString(test.input, test.inputEncoding, test.outputEncoding)
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// check that output and err match
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if output != test.output {
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t.Errorf("test \"%s\" failed, output did not match expected", test.description)
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}
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// check that err is same as expected
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if err != test.err {
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if test.err != nil {
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if err != nil {
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t.Errorf("test \"%s\" failed, got %s when expecting %s", test.description, err, test.err)
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} else {
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t.Errorf("test \"%s\" failed, got nil when expecting %s", test.description, test.err)
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}
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} else {
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t.Errorf("test \"%s\" failed, got unexpected error: %s", test.description, err)
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}
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}
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}
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}
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func TestConvert(t *testing.T) {
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for _, test := range iconvTests {
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// setup input buffer
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input := []byte(test.input)
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// setup a buffer as large as the expected bytesWritten
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output := make([]byte, 50)
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// peform the conversion
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bytesRead, bytesWritten, err := Convert(input, output, test.inputEncoding, test.outputEncoding)
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// check that bytesRead is same as expected
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if bytesRead != test.bytesRead {
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t.Errorf("test \"%s\" failed, bytesRead did not match expected", test.description)
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}
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// check that bytesWritten is same as expected
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if bytesWritten != test.bytesWritten {
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t.Errorf("test \"%s\" failed, bytesWritten did not match expected", test.description)
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}
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// check output bytes against expected - simplest to convert output to
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// string and then do an equality check which is actually a byte wise operation
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if string(output[:bytesWritten]) != test.output {
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t.Errorf("test \"%s\" failed, output did not match expected", test.description)
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}
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// check that err is same as expected
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if err != test.err {
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if test.err != nil {
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if err != nil {
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t.Errorf("test \"%s\" failed, got %s when expecting %s", test.description, err, test.err)
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} else {
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t.Errorf("test \"%s\" failed, got nil when expecting %s", test.description, test.err)
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}
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} else {
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t.Errorf("test \"%s\" failed, got unexpected error: %s", test.description, err)
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}
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}
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}
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}
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