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// Copyright (c) 2020-2025 Bryan Frimin <bryan@frimin.fr>.
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
package privatebin
import (
"encoding/json"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestCompressionAlgorithm_String(t *testing.T) {
tests := []struct {
name string
ca CompressionAlgorithm
want string
}{
{
name: "None compression",
ca: CompressionAlgorithmNone,
want: "none",
},
{
name: "GZip compression",
ca: CompressionAlgorithmGZip,
want: "zlib",
},
{
name: "Unknown compression",
ca: CompressionAlgorithmUnknow,
want: "unknown",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got := tt.ca.String()
assert.Equal(t, tt.want, got)
})
}
}
func TestCompressionAlgorithm_MarshalJSON(t *testing.T) {
tests := []struct {
name string
ca CompressionAlgorithm
want string
}{
{
name: "Marshal none",
ca: CompressionAlgorithmNone,
want: `"none"`,
},
{
name: "Marshal zlib",
ca: CompressionAlgorithmGZip,
want: `"zlib"`,
},
{
name: "Marshal unknown",
ca: CompressionAlgorithmUnknow,
want: `"unknown"`,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := tt.ca.MarshalJSON()
require.NoError(t, err)
assert.Equal(t, tt.want, string(got))
})
}
}
func TestCompressionAlgorithm_UnmarshalJSON(t *testing.T) {
tests := []struct {
name string
input string
want CompressionAlgorithm
wantErr bool
}{
{
name: "Unmarshal none",
input: `"none"`,
want: CompressionAlgorithmNone,
},
{
name: "Unmarshal zlib",
input: `"zlib"`,
want: CompressionAlgorithmGZip,
},
{
name: "Unmarshal unknown string",
input: `"gzip"`,
want: CompressionAlgorithmUnknow,
},
{
name: "Unmarshal empty string",
input: `""`,
want: CompressionAlgorithmUnknow,
},
{
name: "Invalid JSON",
input: `{invalid}`,
wantErr: true,
},
{
name: "Non-string JSON",
input: `123`,
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var ca CompressionAlgorithm
err := ca.UnmarshalJSON([]byte(tt.input))
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
assert.Equal(t, tt.want, ca)
}
})
}
}
func FuzzCompressionAlgorithm_UnmarshalJSON(f *testing.F) {
// Add seed corpus with known valid and edge cases
f.Add(`"none"`)
f.Add(`"zlib"`)
f.Add(`"gzip"`)
f.Add(`"unknown"`)
f.Add(`""`)
f.Add(`"NONE"`)
f.Add(`"ZLIB"`)
f.Add(`"deflate"`)
f.Add(`"bzip2"`)
f.Add(`"lz4"`)
f.Add(`"snappy"`)
f.Add(`null`)
f.Add(`true`)
f.Add(`999`)
f.Add(`{}`)
f.Add(`[]`)
f.Add(`"!@#$%^&*()"`)
f.Add(`"very long compression algorithm string that should default to unknown"`)
f.Fuzz(func(t *testing.T, input string) {
var ca CompressionAlgorithm
err := ca.UnmarshalJSON([]byte(input))
// If unmarshaling succeeds, verify the result is valid
if err == nil {
// The result should be None, GZip, or Unknown
validValues := []CompressionAlgorithm{
CompressionAlgorithmNone,
CompressionAlgorithmGZip,
CompressionAlgorithmUnknow,
}
assert.Contains(t, validValues, ca,
"UnmarshalJSON produced invalid algorithm: %v", ca)
// Verify that marshaling the result works
data, marshalErr := ca.MarshalJSON()
require.NoError(t, marshalErr, "Failed to marshal valid algorithm %v", ca)
// Verify round-trip consistency for valid inputs
var ca2 CompressionAlgorithm
err2 := json.Unmarshal(data, &ca2)
require.NoError(t, err2, "Round-trip unmarshal failed")
assert.Equal(t, ca, ca2, "Round-trip produced different value")
}
// If unmarshaling fails, that's fine - we just want to ensure no panic
})
}
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