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| @@ -0,0 +1,96 @@ | ||
| // Copyright 2014 The Cayley Authors. All rights reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package internal | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "compress/bzip2" | ||
| "compress/gzip" | ||
| "io" | ||
| "strings" | ||
| "testing" | ||
| ) | ||
|
|
||
| var testDecompressor = []struct { | ||
| message string | ||
| input io.Reader | ||
| expect []byte | ||
| err error | ||
| readErr error | ||
| }{ | ||
| { | ||
| message: "text input", | ||
| input: strings.NewReader("cayley data\n"), | ||
| err: nil, | ||
| expect: []byte("cayley data\n"), | ||
| readErr: nil, | ||
| }, | ||
| { | ||
| message: "gzip input", | ||
| input: bytes.NewReader([]byte{ | ||
| 0x1f, 0x8b, 0x08, 0x00, 0x5c, 0xbc, 0xcd, 0x53, 0x00, 0x03, 0x4b, 0x4e, 0xac, 0xcc, 0x49, 0xad, | ||
| 0x54, 0x48, 0x49, 0x2c, 0x49, 0xe4, 0x02, 0x00, 0x03, 0xe1, 0xfc, 0xc3, 0x0c, 0x00, 0x00, 0x00, | ||
| }), | ||
| err: nil, | ||
| expect: []byte("cayley data\n"), | ||
| readErr: nil, | ||
| }, | ||
| { | ||
| message: "bzip2 input", | ||
| input: bytes.NewReader([]byte{ | ||
| 0x42, 0x5a, 0x68, 0x39, 0x31, 0x41, 0x59, 0x26, 0x53, 0x59, 0xb5, 0x4b, 0xe3, 0xc4, 0x00, 0x00, | ||
| 0x02, 0xd1, 0x80, 0x00, 0x10, 0x40, 0x00, 0x2e, 0x04, 0x04, 0x20, 0x20, 0x00, 0x31, 0x06, 0x4c, | ||
| 0x41, 0x4c, 0x1e, 0xa7, 0xa9, 0x2a, 0x18, 0x26, 0xb1, 0xc2, 0xee, 0x48, 0xa7, 0x0a, 0x12, 0x16, | ||
| 0xa9, 0x7c, 0x78, 0x80, | ||
| }), | ||
| err: nil, | ||
| expect: []byte("cayley data\n"), | ||
| readErr: nil, | ||
| }, | ||
| { | ||
| message: "bad gzip input", | ||
| input: strings.NewReader("\x1f\x8bcayley data\n"), | ||
| err: gzip.ErrHeader, | ||
| expect: nil, | ||
| readErr: nil, | ||
| }, | ||
| { | ||
| message: "bad bzip2 input", | ||
| input: strings.NewReader("\x42\x5a\x68cayley data\n"), | ||
| err: nil, | ||
| expect: nil, | ||
| readErr: bzip2.StructuralError("invalid compression level"), | ||
| }, | ||
| } | ||
|
|
||
| func TestDecompressor(t *testing.T) { | ||
| for _, test := range testDecompressor { | ||
| r, err := Decompressor(test.input) | ||
| if err != test.err { | ||
| t.Fatalf("Unexpected error for %s, got:%v expect:%v", test.message, err, test.err) | ||
| } | ||
| if err != nil { | ||
| continue | ||
| } | ||
| p := make([]byte, len(test.expect)*2) | ||
| n, err := r.Read(p) | ||
| if err != test.readErr { | ||
| t.Fatalf("Unexpected error for reading %s, got:%v expect:%v", test.message, err, test.err) | ||
| } | ||
| if bytes.Compare(p[:n], test.expect) != 0 { | ||
| t.Errorf("Unexpected read result for %s, got:%q expect:%q", test.message, p[:n], test.expect) | ||
| } | ||
| } | ||
| } |