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package coding
import (
"testing"
"github.com/dromara/dongle/internal/mock"
"github.com/stretchr/testify/assert"
)
func TestEncoder_ByUnicode(t *testing.T) {
t.Run("encode string", func(t *testing.T) {
encoder := NewEncoder().FromString("hello")
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("encode unicode string", func(t *testing.T) {
encoder := NewEncoder().FromString("你好世界")
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte(`\u4f60\u597d\u4e16\u754c`), result.dst)
})
t.Run("encode bytes", func(t *testing.T) {
encoder := NewEncoder().FromBytes([]byte("hello"))
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("encode empty string", func(t *testing.T) {
encoder := NewEncoder().FromString("")
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Empty(t, result.dst)
})
t.Run("encode empty bytes", func(t *testing.T) {
encoder := NewEncoder().FromBytes([]byte{})
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Empty(t, result.dst)
})
t.Run("encode from file", func(t *testing.T) {
file := mock.NewFile([]byte("hello"), "test.txt")
defer file.Close()
encoder := NewEncoder().FromFile(file)
result := encoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("encode with existing error", func(t *testing.T) {
encoder := Encoder{Error: assert.AnError}
result := encoder.ByUnicode()
assert.Equal(t, assert.AnError, result.Error)
})
}
func TestDecoder_ByUnicode(t *testing.T) {
t.Run("decode string", func(t *testing.T) {
decoder := NewDecoder().FromString("hello")
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("decode unicode string", func(t *testing.T) {
decoder := NewDecoder().FromString(`\u4f60\u597d\u4e16\u754c`)
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("你好世界"), result.dst)
})
t.Run("decode bytes", func(t *testing.T) {
decoder := NewDecoder().FromBytes([]byte("hello"))
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("decode empty string", func(t *testing.T) {
decoder := NewDecoder().FromString("")
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Empty(t, result.dst)
})
t.Run("decode empty bytes", func(t *testing.T) {
decoder := NewDecoder().FromBytes([]byte{})
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Empty(t, result.dst)
})
t.Run("decode from file", func(t *testing.T) {
file := mock.NewFile([]byte("hello"), "test.txt")
defer file.Close()
decoder := NewDecoder().FromFile(file)
result := decoder.ByUnicode()
assert.Nil(t, result.Error)
assert.Equal(t, []byte("hello"), result.dst)
})
t.Run("decode invalid unicode", func(t *testing.T) {
decoder := NewDecoder().FromString(`\uZZZZ`)
result := decoder.ByUnicode()
assert.NotNil(t, result.Error)
})
t.Run("decode with existing error", func(t *testing.T) {
decoder := Decoder{Error: assert.AnError}
result := decoder.ByUnicode()
assert.Equal(t, assert.AnError, result.Error)
})
}
func TestUnicodeRoundTrip(t *testing.T) {
testCases := []struct {
name string
data string
}{
{"empty", ""},
{"simple", "hello"},
{"unicode", "你好世界"},
{"mixed", "hello 世界"},
{"special", "hello\nworld\t"},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
// Encode
encoder := NewEncoder().FromString(tc.data)
encoded := encoder.ByUnicode()
assert.Nil(t, encoded.Error)
// Decode
decoder := NewDecoder().FromBytes(encoded.dst)
decoded := decoder.ByUnicode()
assert.Nil(t, decoded.Error)
assert.Equal(t, tc.data, decoded.ToString())
})
}
}
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