public void TestGetFreeBlockWithSpare() { NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.GetFile("BlockSize512.zvi")); NPOIFSMiniStore ministore = fs.GetMiniStore(); // Our 2nd SBAT block has spares Assert.AreEqual(false, ministore.GetBATBlockAndIndex(0).Block.HasFreeSectors); Assert.AreEqual(true, ministore.GetBATBlockAndIndex(128).Block.HasFreeSectors); // First free one at 181 Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(181)); Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(182)); Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(183)); Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(184)); // Ask, will get 181 Assert.AreEqual(181, ministore.GetFreeBlock()); // Ask again, will still get 181 as not written to Assert.AreEqual(181, ministore.GetFreeBlock()); // Allocate it, then ask again ministore.SetNextBlock(181, POIFSConstants.END_OF_CHAIN); Assert.AreEqual(182, ministore.GetFreeBlock()); fs.Close(); }
public void TestGetFreeBlockWithNonSpare() { NPOIFSFileSystem fs = new NPOIFSFileSystem(_inst.OpenResourceAsStream("BlockSize512.zvi")); NPOIFSMiniStore ministore = fs.GetMiniStore(); // We've spare ones from 181 to 255 for (int i = 181; i < 256; i++) { Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(i)); } // Check our SBAT free stuff is correct Assert.AreEqual(false, ministore.GetBATBlockAndIndex(0).Block.HasFreeSectors); Assert.AreEqual(true, ministore.GetBATBlockAndIndex(128).Block.HasFreeSectors); // Allocate all the spare ones for (int i = 181; i < 256; i++) { ministore.SetNextBlock(i, POIFSConstants.END_OF_CHAIN); } // SBAT are now full, but there's only the two Assert.AreEqual(false, ministore.GetBATBlockAndIndex(0).Block.HasFreeSectors); Assert.AreEqual(false, ministore.GetBATBlockAndIndex(128).Block.HasFreeSectors); try { Assert.AreEqual(false, ministore.GetBATBlockAndIndex(256).Block.HasFreeSectors); Assert.Fail("Should only be two SBATs"); } catch (ArgumentOutOfRangeException) { } // Now ask for a free one, will need to extend the SBAT chain Assert.AreEqual(256, ministore.GetFreeBlock()); Assert.AreEqual(false, ministore.GetBATBlockAndIndex(0).Block.HasFreeSectors); Assert.AreEqual(false, ministore.GetBATBlockAndIndex(128).Block.HasFreeSectors); Assert.AreEqual(true, ministore.GetBATBlockAndIndex(256).Block.HasFreeSectors); Assert.AreEqual(POIFSConstants.END_OF_CHAIN, ministore.GetNextBlock(254)); // 2nd SBAT Assert.AreEqual(POIFSConstants.END_OF_CHAIN, ministore.GetNextBlock(255)); // 2nd SBAT Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(256)); // 3rd SBAT Assert.AreEqual(POIFSConstants.UNUSED_BLOCK, ministore.GetNextBlock(257)); // 3rd SBAT fs.Close(); }