diff options
Diffstat (limited to 'internal/zlibx/decompress_test.go')
| -rw-r--r-- | internal/zlibx/decompress_test.go | 170 |
1 files changed, 0 insertions, 170 deletions
diff --git a/internal/zlibx/decompress_test.go b/internal/zlibx/decompress_test.go deleted file mode 100644 index bea348d2..00000000 --- a/internal/zlibx/decompress_test.go +++ /dev/null @@ -1,170 +0,0 @@ -package zlibx - -import ( - "bytes" - stdzlib "compress/zlib" - "crypto/rand" - "testing" -) - -func compressZlib(t *testing.T, payload []byte) []byte { - t.Helper() - var buf bytes.Buffer - w := stdzlib.NewWriter(&buf) - if _, err := w.Write(payload); err != nil { - t.Fatalf("Write: %v", err) - } - if err := w.Close(); err != nil { - t.Fatalf("Close: %v", err) - } - return buf.Bytes() -} - -func TestDecompress(t *testing.T) { - makeRand := func(n int) []byte { - b := make([]byte, n) - if _, err := rand.Read(b); err != nil { - t.Fatalf("rand.Read: %v", err) - } - return b - } - - type tc struct { - name string - payload []byte - } - - tests := []tc{ - { - name: "simple-hello", - payload: []byte("hello, zlib world!"), - }, - { - name: "empty", - payload: []byte{}, - }, - { - name: "single-byte", - payload: []byte{0x42}, - }, - { - name: "all-zero-1k", - payload: bytes.Repeat([]byte{0}, 1024), - }, - { - name: "all-FF-1k", - payload: bytes.Repeat([]byte{0xFF}, 1024), - }, - { - name: "ascii-repeated-pattern", - payload: bytes.Repeat([]byte("ABC123!"), 500), - }, - { - name: "binary-structured", - payload: []byte{ - 0x00, 0x01, 0x02, 0x03, - 0x10, 0x20, 0x30, 0x40, - 0xFF, 0xEE, 0xDD, 0xCC, - }, - }, - { - name: "1k-crypto-random", - payload: makeRand(1024), - }, - { - name: "32k-crypto-random", - payload: makeRand(32 * 1024), - }, - { - name: "256k-crypto-random", - payload: makeRand(256 * 1024), - }, - { - name: "highly-compressible-large", - payload: bytes.Repeat([]byte("AAAAAAAAAAAAAAAAAAAA"), 50_000), - }, - { - name: "json", - payload: []byte(`{"name":"test","values":[1,2,3,4],"deep":{"x":123,"y":"abc"}}`), - }, - { - name: "html", - payload: []byte("<html><body><h1>Title</h1><p>Paragraph</p></body></html>"), - }, - { - name: "alternating-binary-pattern", - payload: func() []byte { - b := make([]byte, 4096) - for i := 0; i < len(b); i++ { - if i%2 == 0 { - b[i] = 0xAA - } else { - b[i] = 0x55 - } - } - return b - }(), - }, - { - name: "large-repetitive-words", - payload: bytes.Repeat([]byte("the quick brown fox jumps over the lazy dog\n"), 4000), - }, - { - name: "unicode", - payload: []byte("我不知道该说点啥就随便打点字吧🤷♀️"), - }, - { - name: "multi-meg-random-2MB", - payload: makeRand(2 * 1024 * 1024), - }, - { - name: "multi-meg-random-16MB", - payload: makeRand(16 * 1024 * 1024), - }, - } - - for _, tt := range tests { - t.Run(tt.name, func(t *testing.T) { - compressed := compressZlib(t, tt.payload) - - out, err := Decompress(compressed) - if err != nil { - t.Fatalf("Decompress: %v", err) - } - defer out.Release() - - if !bytes.Equal(out.Bytes(), tt.payload) { - t.Fatalf("payload mismatch: got %d bytes, want %d", len(out.Bytes()), len(tt.payload)) - } - }) - } -} - -func TestDecompressChecksumError(t *testing.T) { - payload := []byte("checksum check") - compressed := compressZlib(t, payload) - compressed[len(compressed)-1] ^= 0xff - - if _, err := Decompress(compressed); err != ErrChecksum { - t.Fatalf("expected ErrChecksum, got %v", err) - } -} - -func TestDecompressSizedUsesHint(t *testing.T) { - payload := []byte("tiny payload") - compressed := compressZlib(t, payload) - - const hint = 1 << 20 - out, _, err := DecompressSized(compressed, hint) - if err != nil { - t.Fatalf("DecompressSized: %v", err) - } - defer out.Release() - - if !bytes.Equal(out.Bytes(), payload) { - t.Fatalf("unexpected payload %q", out.Bytes()) - } - if cap(out.Bytes()) < hint { - t.Fatalf("expected capacity >= %d, got %d", hint, cap(out.Bytes())) - } -} |
