Zip: Move tests to separate files

Author: siegfriedpammer

test/ICSharpCode.SharpZipLib.Tests/Zip/FastZipHandling.cs

@@ -0,0 +1,273 @@
+using System.IO;
+using System.Text.RegularExpressions;
+using ICSharpCode.SharpZipLib.Zip;
+using NUnit.Framework;
+
+namespace ICSharpCode.SharpZipLib.Tests.Zip
+{
+	[TestFixture]
+	public class FastZipHandling : ZipBase
+	{
+		[Test]
+		[Category("Zip")]
+		[Category("CreatesTempFile")]
+		public void Basics()
+		{
+			const string tempName1 = "a(1).dat";
+
+			var target = new MemoryStream();
+
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string addFile = Path.Combine(tempFilePath, tempName1);
+			MakeTempFile(addFile, 1);
+
+			try {
+				var fastZip = new FastZip();
+				fastZip.CreateZip(target, tempFilePath, false, @"a\(1\)\.dat", null);
+
+				var archive = new MemoryStream(target.ToArray());
+				using (ZipFile zf = new ZipFile(archive)) {
+					Assert.AreEqual(1, zf.Count);
+					ZipEntry entry = zf[0];
+					Assert.AreEqual(tempName1, entry.Name);
+					Assert.AreEqual(1, entry.Size);
+					Assert.IsTrue(zf.TestArchive(true));
+
+					zf.Close();
+				}
+			} finally {
+				File.Delete(tempName1);
+			}
+		}
+
+		const string ZipTempDir = "SharpZipLibTest";
+
+		void EnsureTestDirectoryIsEmpty(string baseDir)
+		{
+			string name = Path.Combine(baseDir, ZipTempDir);
+
+			if (Directory.Exists(name)) {
+				Directory.Delete(name, true);
+			}
+
+			Directory.CreateDirectory(name);
+		}
+
+		[Test]
+		[Category("Zip")]
+		[Category("CreatesTempFile")]
+		public void ExtractEmptyDirectories()
+		{
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string name = Path.Combine(tempFilePath, "x.zip");
+
+			EnsureTestDirectoryIsEmpty(tempFilePath);
+
+			string targetDir = Path.Combine(tempFilePath, ZipTempDir + @"\floyd");
+			using (FileStream fs = File.Create(name)) {
+				using (ZipOutputStream zOut = new ZipOutputStream(fs)) {
+					zOut.PutNextEntry(new ZipEntry("floyd/"));
+				}
+			}
+
+			var fastZip = new FastZip();
+			fastZip.CreateEmptyDirectories = true;
+			fastZip.ExtractZip(name, targetDir, "zz");
+
+			File.Delete(name);
+			Assert.IsTrue(Directory.Exists(targetDir), "Empty directory should be created");
+		}
+
+		[Test]
+		[Category("Zip")]
+		public void Encryption()
+		{
+			const string tempName1 = "a.dat";
+
+			var target = new MemoryStream();
+
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string addFile = Path.Combine(tempFilePath, tempName1);
+			MakeTempFile(addFile, 1);
+
+			try {
+				var fastZip = new FastZip();
+				fastZip.Password = "Ahoy";
+
+				fastZip.CreateZip(target, tempFilePath, false, @"a\.dat", null);
+
+				var archive = new MemoryStream(target.ToArray());
+				using (ZipFile zf = new ZipFile(archive)) {
+					zf.Password = "Ahoy";
+					Assert.AreEqual(1, zf.Count);
+					ZipEntry entry = zf[0];
+					Assert.AreEqual(tempName1, entry.Name);
+					Assert.AreEqual(1, entry.Size);
+					Assert.IsTrue(zf.TestArchive(true));
+					Assert.IsTrue(entry.IsCrypted);
+				}
+			} finally {
+				File.Delete(tempName1);
+			}
+		}
+
+		[Test]
+		[Category("Zip")]
+		public void CreateExceptions()
+		{
+			var fastZip = new FastZip();
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			Assert.Throws<DirectoryNotFoundException>(() => 
+			{
+				string addFile = Path.Combine(tempFilePath, "test.zip");
+				try {
+					fastZip.CreateZip(addFile, @"z:\doesnt exist", false, null);
+				} finally {
+					File.Delete(addFile);
+				}
+			});
+		}
+
+		[Test]
+		[Category("Zip")]
+		public void UnicodeText()
+		{
+			var zippy = new FastZip();
+			var factory = new ZipEntryFactory();
+			factory.IsUnicodeText = true;
+			zippy.EntryFactory = factory;
+
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			const string tempName1 = "a.dat";
+			string addFile = Path.Combine(tempFilePath, tempName1);
+			MakeTempFile(addFile, 1);
+
+			try {
+				var target = new MemoryStream();
+				zippy.CreateZip(target, tempFilePath, false, Regex.Escape(tempName1), null);
+
+				var archive = new MemoryStream(target.ToArray());
+
+				using (ZipFile z = new ZipFile(archive)) {
+					Assert.AreEqual(1, z.Count);
+					Assert.IsTrue(z[0].IsUnicodeText);
+				}
+			} finally {
+				File.Delete(addFile);
+			}
+		}
+
+		[Test]
+		[Category("Zip")]
+		public void ExtractExceptions()
+		{
+			var fastZip = new FastZip();
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string addFile = Path.Combine(tempFilePath, "test.zip");
+			try {
+				Assert.Throws<FileNotFoundException>(() => fastZip.ExtractZip(addFile, @"z:\doesnt exist", null));
+			} finally {
+				File.Delete(addFile);
+			}
+		}
+
+		[Test]
+		[Category("Zip")]
+		[Ignore("see comments below")]
+		/*
+		 * This test is somewhat strange:
+		 * a) It tries to simulate a locked file by opening it on the same thread using FileShare.
+		 *    However the FileShare value is not meant for cross-process file locking, but only to
+		 *    allow other threads in the same process to access the same file.
+		 *    This is not the intended behavior, you would need a second process locking the file
+		 *    when running this test.
+		 * b) It would require to change the file operation in FastZip.ProcessFile to use FileShare.ReadWrite
+		 *    but doing so would make FastZip work with locked files (that are potentially written to by others)
+		 *    and silently ignoring any locks. HOWEVER: This can lead to corrupt/incomplete files, which is why it
+		 *    should not be the default behavior.
+		 *    
+		 * Therefore I would remove this test.
+		 **/
+		public void ReadingOfLockedDataFiles()
+		{
+			const string tempName1 = "a.dat";
+
+			var target = new MemoryStream();
+
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string addFile = Path.Combine(tempFilePath, tempName1);
+			MakeTempFile(addFile, 1);
+
+			try {
+				var fastZip = new FastZip();
+
+				using (File.Open(addFile, FileMode.Open, FileAccess.Write, FileShare.ReadWrite)) {
+					fastZip.CreateZip(target, tempFilePath, false, @"a\.dat", null);
+
+					var archive = new MemoryStream(target.ToArray());
+					using (ZipFile zf = new ZipFile(archive)) {
+						Assert.AreEqual(1, zf.Count);
+						ZipEntry entry = zf[0];
+						Assert.AreEqual(tempName1, entry.Name);
+						Assert.AreEqual(1, entry.Size);
+						Assert.IsTrue(zf.TestArchive(true));
+
+						zf.Close();
+					}
+				}
+			} finally {
+				File.Delete(tempName1);
+			}
+		}
+
+		[Test]
+		[Category("Zip")]
+		public void NonAsciiPasswords()
+		{
+			const string tempName1 = "a.dat";
+
+			var target = new MemoryStream();
+
+			string tempFilePath = GetTempFilePath();
+			Assert.IsNotNull(tempFilePath, "No permission to execute this test?");
+
+			string addFile = Path.Combine(tempFilePath, tempName1);
+			MakeTempFile(addFile, 1);
+
+			string password = "abc\u0066\u0393";
+			try {
+				var fastZip = new FastZip();
+				fastZip.Password = password;
+
+				fastZip.CreateZip(target, tempFilePath, false, @"a\.dat", null);
+
+				var archive = new MemoryStream(target.ToArray());
+				using (ZipFile zf = new ZipFile(archive)) {
+					zf.Password = password;
+					Assert.AreEqual(1, zf.Count);
+					ZipEntry entry = zf[0];
+					Assert.AreEqual(tempName1, entry.Name);
+					Assert.AreEqual(1, entry.Size);
+					Assert.IsTrue(zf.TestArchive(true));
+					Assert.IsTrue(entry.IsCrypted);
+				}
+			} finally {
+				File.Delete(tempName1);
+			}
+		}
+	}
+}