public static async Task ZipArchive_InvalidStream(String zipname)
{
string filename = ZipTest.bad(zipname);
using (var stream = await StreamHelpers.CreateTempCopyStream(filename))
Assert.Throws <InvalidDataException>(() => new ZipArchive(stream, ZipArchiveMode.Read));
}
public static async Task ReadNormal()
{
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("normal.zip"), ZipTest.zfolder("normal"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("fake64.zip"), ZipTest.zfolder("small"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("empty.zip"), ZipTest.zfolder("empty"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("appended.zip"), ZipTest.zfolder("small"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("prepended.zip"), ZipTest.zfolder("small"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("emptydir.zip"), ZipTest.zfolder("emptydir"), ZipArchiveMode.Read);
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("small.zip"), ZipTest.zfolder("small"), ZipArchiveMode.Read);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) // [ActiveIssue(846, PlatformID.AnyUnix)]
{
await ZipTest.IsZipSameAsDirAsync(
ZipTest.zfile("unicode.zip"), ZipTest.zfolder("unicode"), ZipArchiveMode.Read);
}
}
public static async Task UnsupportedCompression()
{
//lzma compression method
await UnsupportedCompressionRoutine(ZipTest.bad("LZMA.zip"), true);
await UnsupportedCompressionRoutine(ZipTest.bad("invalidDeflate.zip"), false);
}
public static async Task testFolder(String s)
{
var zs = new LocalMemoryStream();
await ZipTest.CreateFromDir(ZipTest.zfolder(s), zs, ZipArchiveMode.Update);
ZipTest.IsZipSameAsDir(zs.Clone(), ZipTest.zfolder(s), ZipArchiveMode.Read, false, false);
}
public static async Task ZipArchive_InvalidEntryTable(String zipname)
{
string filename = ZipTest.bad(zipname);
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(filename), ZipArchiveMode.Read))
Assert.Throws <InvalidDataException>(() => archive.Entries[0]);
}
public static async Task OverwriteEntry()
{
//Overwrite file
Stream testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
String fileName = ZipTest.zmodified(Path.Combine("overwrite", "first.txt"));
ZipArchiveEntry e = archive.GetEntry("first.txt");
var file = FileData.GetFile(fileName);
e.LastWriteTime = file.LastModifiedDate;
using (var stream = await StreamHelpers.CreateTempCopyStream(fileName))
{
using (Stream es = e.Open())
{
es.SetLength(0);
stream.CopyTo(es);
}
}
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("overwrite"), ZipArchiveMode.Read, false, false);
}
public static async Task ZipArchiveEntry_InvalidUpdate(String zipname)
{
string filename = ZipTest.bad(zipname);
Stream updatedCopy = await StreamHelpers.CreateTempCopyStream(filename);
String name;
Int64 length, compressedLength;
DateTimeOffset lastWriteTime;
using (ZipArchive archive = new ZipArchive(updatedCopy, ZipArchiveMode.Update, true))
{
ZipArchiveEntry e = archive.Entries[0];
name = e.FullName;
lastWriteTime = e.LastWriteTime;
length = e.Length;
compressedLength = e.CompressedLength;
Assert.Throws <InvalidDataException>(() => e.Open()); //"Should throw on open"
}
//make sure that update mode preserves that unreadable file
using (ZipArchive archive = new ZipArchive(updatedCopy, ZipArchiveMode.Update))
{
ZipArchiveEntry e = archive.Entries[0];
Assert.Equal(name, e.FullName); //"Name isn't the same"
Assert.Equal(lastWriteTime, e.LastWriteTime); //"LastWriteTime not the same"
Assert.Equal(length, e.Length); //"Length isn't the same"
Assert.Equal(compressedLength, e.CompressedLength); //"CompressedLength isn't the same"
Assert.Throws <InvalidDataException>(() => e.Open()); //"Should throw on open"
}
}
public static async Task ZipArchiveEntry_InvalidLastWriteTime_Read()
{
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(
ZipTest.bad("invaliddate.zip")), ZipArchiveMode.Read))
{
Assert.Equal(new DateTime(1980, 1, 1, 0, 0, 0), archive.Entries[0].LastWriteTime.DateTime); //"Date isn't correct on invalid date"
}
}
public static async Task TestStreamingRead(string zipFile, string zipFolder)
{
using (var stream = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile(zipFile)))
{
Stream wrapped = new WrappedStream(stream, true, false, false, null);
ZipTest.IsZipSameAsDir(wrapped, ZipTest.zfolder(zipFolder), ZipArchiveMode.Read, false, false);
Assert.False(wrapped.CanRead, "Wrapped stream should be closed at this point"); //check that it was closed
}
}
public static async Task ZipWithInvalidFileNames_ParsedBasedOnSourceOS(string zipName, string fileName)
{
using (Stream stream = await StreamHelpers.CreateTempCopyStream(ZipTest.compat(zipName)))
using (ZipArchive archive = new ZipArchive(stream))
{
Assert.Equal(1, archive.Entries.Count);
ZipArchiveEntry entry = archive.Entries[0];
Assert.Equal(fileName, entry.Name);
}
}
public static async Task testCreate(String folder, bool seekable)
{
using (var s = new MemoryStream())
{
var testStream = new WrappedStream(s, false, true, seekable, null);
await ZipTest.CreateFromDir(ZipTest.zfolder(folder), testStream, ZipArchiveMode.Create);
ZipTest.IsZipSameAsDir(s, ZipTest.zfolder(folder), ZipArchiveMode.Read, false, false);
}
}
public static void EmptyEntryTest(ZipArchiveMode mode)
{
String data1 = "test data written to file.";
String data2 = "more test data written to file.";
DateTimeOffset lastWrite = new DateTimeOffset(1992, 4, 5, 12, 00, 30, new TimeSpan(-5, 0, 0));
var baseline = new LocalMemoryStream();
using (ZipArchive archive = new ZipArchive(baseline, mode))
{
ZipTest.AddEntry(archive, "data1.txt", data1, lastWrite);
ZipArchiveEntry e = archive.CreateEntry("empty.txt");
e.LastWriteTime = lastWrite;
using (Stream s = e.Open()) { }
ZipTest.AddEntry(archive, "data2.txt", data2, lastWrite);
}
var test = new LocalMemoryStream();
using (ZipArchive archive = new ZipArchive(test, mode))
{
ZipTest.AddEntry(archive, "data1.txt", data1, lastWrite);
ZipArchiveEntry e = archive.CreateEntry("empty.txt");
e.LastWriteTime = lastWrite;
ZipTest.AddEntry(archive, "data2.txt", data2, lastWrite);
}
//compare
Assert.True(ZipTest.ArraysEqual(baseline.ToArray(), test.ToArray()), "Arrays didn't match");
//second test, this time empty file at end
baseline = baseline.Clone();
using (ZipArchive archive = new ZipArchive(baseline, mode))
{
ZipTest.AddEntry(archive, "data1.txt", data1, lastWrite);
ZipArchiveEntry e = archive.CreateEntry("empty.txt");
e.LastWriteTime = lastWrite;
using (Stream s = e.Open()) { }
}
test = test.Clone();
using (ZipArchive archive = new ZipArchive(test, mode))
{
ZipTest.AddEntry(archive, "data1.txt", data1, lastWrite);
ZipArchiveEntry e = archive.CreateEntry("empty.txt");
e.LastWriteTime = lastWrite;
}
//compare
Assert.True(ZipTest.ArraysEqual(baseline.ToArray(), test.ToArray()), "Arrays didn't match after update");
}
public static async Task AddFileToArchive()
{
//add file
var testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
await updateArchive(archive, ZipTest.zmodified(Path.Combine("addFile", "added.txt")), "added.txt");
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("addFile"), ZipArchiveMode.Read, false, false);
}
public static async Task CompatibilityTests()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("7zip.zip")), ZipTest.zfolder("normal"), ZipArchiveMode.Update, false, false);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("windows.zip")), ZipTest.zfolder("normalWithoutEmptyDir"), ZipArchiveMode.Update, true, false);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("dotnetzipstreaming.zip")), ZipTest.zfolder("normal"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("sharpziplib.zip")), ZipTest.zfolder("normalWithoutEmptyDir"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("xceedstreaming.zip")), ZipTest.zfolder("normal"), ZipArchiveMode.Update, true, true);
}
public static async Task CompatibilityTestsMsFiles()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("excel.xlsx")), ZipTest.compat("excel"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("powerpoint.pptx")), ZipTest.compat("powerpoint"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("word.docx")), ZipTest.compat("word"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("silverlight.xap")), ZipTest.compat("silverlight"), ZipArchiveMode.Update, true, true);
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.compat("packaging.package")), ZipTest.compat("packaging"), ZipArchiveMode.Update, true, true);
}
public static async Task UnsupportedCompressionRoutine(String zipname, Boolean throwsOnOpen)
{
// using (ZipArchive archive = ZipFile.OpenRead(filename))
string filename = ZipTest.bad(zipname);
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(filename), ZipArchiveMode.Read))
{
ZipArchiveEntry e = archive.Entries[0];
if (throwsOnOpen)
{
Assert.Throws <InvalidDataException>(() => e.Open()); //"should throw on open"
}
else
{
using (Stream s = e.Open())
{
Assert.Throws <InvalidDataException>(() => s.ReadByte()); //"Unreadable stream"
}
}
}
Stream updatedCopy = await StreamHelpers.CreateTempCopyStream(filename);
String name;
Int64 length, compressedLength;
DateTimeOffset lastWriteTime;
using (ZipArchive archive = new ZipArchive(updatedCopy, ZipArchiveMode.Update, true))
{
ZipArchiveEntry e = archive.Entries[0];
name = e.FullName;
lastWriteTime = e.LastWriteTime;
length = e.Length;
compressedLength = e.CompressedLength;
Assert.Throws <InvalidDataException>(() => e.Open()); //"Should throw on open"
}
//make sure that update mode preserves that unreadable file
using (ZipArchive archive = new ZipArchive(updatedCopy, ZipArchiveMode.Update))
{
ZipArchiveEntry e = archive.Entries[0];
Assert.Equal(name, e.FullName); //"Name isn't the same"
Assert.Equal(lastWriteTime, e.LastWriteTime); //"LastWriteTime not the same"
Assert.Equal(length, e.Length); //"Length isn't the same"
Assert.Equal(compressedLength, e.CompressedLength); //"CompressedLength isn't the same"
Assert.Throws <InvalidDataException>(() => e.Open()); //"Should throw on open"
}
}
public static async Task ReadStreaming()
{
//don't include large, because that means loading the whole thing in memory
await TestStreamingRead(ZipTest.zfile("normal.zip"), ZipTest.zfolder("normal"));
await TestStreamingRead(ZipTest.zfile("fake64.zip"), ZipTest.zfolder("small"));
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows)) // [ActiveIssue(846, PlatformID.AnyUnix)]
{
await TestStreamingRead(ZipTest.zfile("unicode.zip"), ZipTest.zfolder("unicode"));
}
await TestStreamingRead(ZipTest.zfile("empty.zip"), ZipTest.zfolder("empty"));
await TestStreamingRead(ZipTest.zfile("appended.zip"), ZipTest.zfolder("small"));
await TestStreamingRead(ZipTest.zfile("prepended.zip"), ZipTest.zfolder("small"));
await TestStreamingRead(ZipTest.zfile("emptydir.zip"), ZipTest.zfolder("emptydir"));
}
public static async Task ReadStreamOps()
{
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip")), ZipArchiveMode.Read))
{
foreach (ZipArchiveEntry e in archive.Entries)
{
using (Stream s = e.Open())
{
Assert.True(s.CanRead, "Can read to read archive");
Assert.False(s.CanWrite, "Can't write to read archive");
Assert.False(s.CanSeek, "Can't seek on archive");
Assert.Equal(ZipTest.LengthOfUnseekableStream(s), e.Length); //"Length is not correct on unseekable stream"
}
}
}
}
public static async Task InvalidDates()
{
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(
ZipTest.bad("invaliddate.zip")), ZipArchiveMode.Read))
{
Assert.Equal(new DateTime(1980, 1, 1, 0, 0, 0), archive.Entries[0].LastWriteTime.DateTime); //"Date isn't correct on invalid date"
}
using (ZipArchive archive = new ZipArchive(new MemoryStream(), ZipArchiveMode.Create))
{
ZipArchiveEntry entry = archive.CreateEntry("test");
Assert.Throws <ArgumentOutOfRangeException>(() =>
{ entry.LastWriteTime = new DateTimeOffset(1979, 12, 3, 5, 6, 2, new TimeSpan()); }); //"should throw on bad date"
Assert.Throws <ArgumentOutOfRangeException>(() =>
{ entry.LastWriteTime = new DateTimeOffset(2980, 12, 3, 5, 6, 2, new TimeSpan()); }); //"Should throw on bad date"
}
}
public static async Task UpdateReadNormal()
{
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip")), ZipTest.zfolder("normal"), ZipArchiveMode.Update, false, false);
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("fake64.zip")), ZipTest.zfolder("small"), ZipArchiveMode.Update, false, false);
if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("unicode.zip")), ZipTest.zfolder("unicode"), ZipArchiveMode.Update, false, false);
}
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("empty.zip")), ZipTest.zfolder("empty"), ZipArchiveMode.Update, false, false);
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("appended.zip")), ZipTest.zfolder("small"), ZipArchiveMode.Update, false, false);
ZipTest.IsZipSameAsDir(
await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("prepended.zip")), ZipTest.zfolder("small"), ZipArchiveMode.Update, false, false);
}
public static async Task InvalidInstanceMethods()
{
Stream zipFile = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(zipFile, ZipArchiveMode.Update))
{
//non-existent entry
Assert.True(null == archive.GetEntry("nonExistentEntry")); //"Should return null on non-existent entry name"
//null/empty string
Assert.Throws <ArgumentNullException>(() => archive.GetEntry(null)); //"Should throw on null entry name"
ZipArchiveEntry entry = archive.GetEntry("first.txt");
//null/empty string
Assert.Throws <ArgumentException>(() => archive.CreateEntry("")); //"Should throw on empty entry name"
Assert.Throws <ArgumentNullException>(() => archive.CreateEntry(null)); //"should throw on null entry name"
}
}
public static async Task ZipArchive_InvalidEntry(String zipname, Boolean throwsOnOpen)
{
string filename = ZipTest.bad(zipname);
using (ZipArchive archive = new ZipArchive(await StreamHelpers.CreateTempCopyStream(filename), ZipArchiveMode.Read))
{
ZipArchiveEntry e = archive.Entries[0];
if (throwsOnOpen)
{
Assert.Throws <InvalidDataException>(() => e.Open()); //"should throw on open"
}
else
{
using (Stream s = e.Open())
{
Assert.Throws <InvalidDataException>(() => s.ReadByte()); //"Unreadable stream"
}
}
}
}
public static async Task AppendToEntry()
{
//append
Stream testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
ZipArchiveEntry e = archive.GetEntry("first.txt");
using (StreamWriter s = new StreamWriter(e.Open()))
{
s.BaseStream.Seek(0, SeekOrigin.End);
s.Write("\r\n\r\nThe answer my friend, is blowin' in the wind.");
}
var file = FileData.GetFile(ZipTest.zmodified(Path.Combine("append", "first.txt")));
e.LastWriteTime = file.LastModifiedDate;
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("append"), ZipArchiveMode.Read, false, false);
}
public static async Task DeleteAndMoveEntries()
{
//delete and move
var testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
ZipArchiveEntry toBeDeleted = archive.GetEntry("binary.wmv");
toBeDeleted.Delete();
toBeDeleted.Delete(); //delete twice should be okay
ZipArchiveEntry moved = archive.CreateEntry("notempty/secondnewname.txt");
ZipArchiveEntry orig = archive.GetEntry("notempty/second.txt");
using (Stream origMoved = orig.Open(), movedStream = moved.Open())
{
origMoved.CopyTo(movedStream);
}
moved.LastWriteTime = orig.LastWriteTime;
orig.Delete();
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("deleteMove"), ZipArchiveMode.Read, false, false);
}
public static async Task UpdateModeInvalidOperations()
{
using (LocalMemoryStream ms = await LocalMemoryStream.readAppFileAsync(ZipTest.zfile("normal.zip")))
{
ZipArchive target = new ZipArchive(ms, ZipArchiveMode.Update, true);
ZipArchiveEntry edeleted = target.GetEntry("first.txt");
Stream s = edeleted.Open();
//invalid ops while entry open
Assert.Throws <IOException>(() => edeleted.Open());
Assert.Throws <InvalidOperationException>(() => { var x = edeleted.Length; });
Assert.Throws <InvalidOperationException>(() => { var x = edeleted.CompressedLength; });
Assert.Throws <IOException>(() => edeleted.Delete());
s.Dispose();
//invalid ops on stream after entry closed
Assert.Throws <ObjectDisposedException>(() => s.ReadByte());
Assert.Throws <InvalidOperationException>(() => { var x = edeleted.Length; });
Assert.Throws <InvalidOperationException>(() => { var x = edeleted.CompressedLength; });
edeleted.Delete();
//invalid ops while entry deleted
Assert.Throws <InvalidOperationException>(() => edeleted.Open());
Assert.Throws <InvalidOperationException>(() => { edeleted.LastWriteTime = new DateTimeOffset(); });
ZipArchiveEntry e = target.GetEntry("notempty/second.txt");
target.Dispose();
Assert.Throws <ObjectDisposedException>(() => { var x = target.Entries; });
Assert.Throws <ObjectDisposedException>(() => target.CreateEntry("dirka"));
Assert.Throws <ObjectDisposedException>(() => e.Open());
Assert.Throws <ObjectDisposedException>(() => e.Delete());
Assert.Throws <ObjectDisposedException>(() => { e.LastWriteTime = new DateTimeOffset(); });
}
}
public static async Task StrangeFiles5()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.strange("filenameTimeAndSizesDifferentInLH.zip")), ZipTest.zfolder("verysmall"), ZipArchiveMode.Update, true, false);
}
public static async Task StrangeFiles4()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.strange("dataDescriptor.zip")), ZipTest.zfolder("normalWithoutBinary"), ZipArchiveMode.Update, true, false);
}
public static async Task StrangeFiles3()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.strange(Path.Combine("extradata", "zip64ThenExtraData.zip"))), ZipTest.zfolder("verysmall"), ZipArchiveMode.Update, false, false);
}
public static async Task StrangeFiles1()
{
ZipTest.IsZipSameAsDir(await StreamHelpers.CreateTempCopyStream(
ZipTest.strange(Path.Combine("extradata", "extraDataLHandCDentryAndArchiveComments.zip"))), ZipTest.zfolder("verysmall"), ZipArchiveMode.Update, false, false);
}
public static async Task UpdateModifications()
{
//delete and move
var testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
ZipArchiveEntry toBeDeleted = archive.GetEntry("binary.wmv");
toBeDeleted.Delete();
toBeDeleted.Delete(); //delete twice should be okay
ZipArchiveEntry moved = archive.CreateEntry("notempty/secondnewname.txt");
ZipArchiveEntry orig = archive.GetEntry("notempty/second.txt");
using (Stream origMoved = orig.Open(), movedStream = moved.Open())
{
origMoved.CopyTo(movedStream);
}
moved.LastWriteTime = orig.LastWriteTime;
orig.Delete();
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("deleteMove"), ZipArchiveMode.Read, false, false);
//append
testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
ZipArchiveEntry e = archive.GetEntry("first.txt");
using (StreamWriter s = new StreamWriter(e.Open()))
{
s.BaseStream.Seek(0, SeekOrigin.End);
s.Write("\r\n\r\nThe answer my friend, is blowin' in the wind.");
}
e.LastWriteTime = new DateTimeOffset(2010, 7, 7, 11, 57, 18, new TimeSpan(-7, 0, 0));
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("append"), ZipArchiveMode.Read, false, false);
//Overwrite file
testArchive = await StreamHelpers.CreateTempCopyStream(ZipTest.zfile("normal.zip"));
using (ZipArchive archive = new ZipArchive(testArchive, ZipArchiveMode.Update, true))
{
String fileName = ZipTest.zmodified(Path.Combine("overwrite", "first.txt"));
ZipArchiveEntry e = archive.GetEntry("first.txt");
var file = FileData.GetFile(fileName);
e.LastWriteTime = file.LastModifiedDate;
using (var stream = await StreamHelpers.CreateTempCopyStream(fileName))
{
using (Stream es = e.Open())
{
es.SetLength(0);
stream.CopyTo(es);
}
}
}
ZipTest.IsZipSameAsDir(testArchive, ZipTest.zmodified("overwrite"), ZipArchiveMode.Read, false, false);
}
