xapian-bindings/csharp/SmokeTest.cs

   1 // Simple test that we can load the xapian module and run a simple test
   2 //
   3 // Copyright (C) 2004,2005,2006,2007,2008,2011,2016 Olly Betts
   4 //
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License as
   7 // published by the Free Software Foundation; either version 2 of the
   8 // License, or (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software
  17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
  18 // USA
  19
  20 // The Portable.NET compiler has a bug which prevents it finding static
  21 // member functions such as Xapian.Version.Major():
  22 //
  23 // http://savannah.gnu.org/bugs/?func=detailitem&item_id=12231
  24 //
  25 // The bug is fixed in Portable.NET CVS HEAD - the fix should make it
  26 // into Portable.NET 0.8.2.
  27 //
  28 // The workaround for now is to add an explicit "using Xapian;" here:
  29 using Xapian;
  30
  31 class TestMatchDecider : Xapian.MatchDecider {
  32     public override bool Apply(Xapian.Document doc) {
  33         return (doc.GetValue(0) == "yes");
  34     }
  35 }
  36
  37 class SmokeTest {
  38     public static void Main() {
  39         try {
  40             // Test the version number reporting functions give plausible
  41             // results.
  42             string v = "";
  43             v += Xapian.Version.Major();
  44             v += ".";
  45             v += Xapian.Version.Minor();
  46             v += ".";
  47             v += Xapian.Version.Revision();
  48             string v2 = Xapian.Version.String();
  49             if (v != v2) {
  50                 System.Console.WriteLine("Unexpected version output (" + v + " != " + v2 + ")");
  51                 System.Environment.Exit(1);
  52             }
  53
  54             Xapian.Stem stem = new Xapian.Stem("english");
  55             Xapian.Document doc = new Xapian.Document();
  56             // Currently SWIG doesn't generate zero-byte clean code for
  57             // transferring strings between C# and C++.
  58             /*
  59             doc.SetData("a\0b");
  60             if (doc.GetData() == "a") {
  61                 System.Console.WriteLine("GetData+SetData truncates at a zero byte");
  62                 System.Environment.Exit(1);
  63             }
  64             if (doc.GetData() != "a\0b") {
  65                 System.Console.WriteLine("GetData+SetData doesn't transparently handle a zero byte");
  66                 System.Environment.Exit(1);
  67             }
  68             */
  69             doc.SetData("is there anybody out there?");
  70             doc.AddTerm("XYzzy");
  71             doc.AddPosting(stem.Apply("is"), 1);
  72             doc.AddPosting(stem.Apply("there"), 2);
  73             doc.AddPosting(stem.Apply("anybody"), 3);
  74             doc.AddPosting(stem.Apply("out"), 4);
  75             doc.AddPosting(stem.Apply("there"), 5);
  76
  77             Xapian.WritableDatabase db("", Xapian.DB_BACKEND_INMEMORY);
  78             db.AddDocument(doc);
  79             if (db.GetDocCount() != 1) {
  80                 System.Environment.Exit(1);
  81             }
  82
  83             if (doc.TermListCount() != 5) {
  84                 System.Environment.Exit(1);
  85             }
  86             int count = 0;
  87             Xapian.TermIterator i = doc.TermListBegin();
  88             while (i != doc.TermListEnd()) {
  89                 ++count;
  90                 ++i;
  91             }
  92             if (count != 5) {
  93                 System.Environment.Exit(1);
  94             }
  95
  96             // Check exception handling for Xapian::DocNotFoundError.
  97             try {
  98                 Xapian.Document doc2 = db.GetDocument(2);
  99                 System.Console.WriteLine("Retrieved non-existent document: " + doc2.ToString());
 100                 System.Environment.Exit(1);
 101             } catch (System.Exception e) {
 102                 // We expect DocNotFoundError
 103                 if (e.Message.Substring(0, 16) != "DocNotFoundError") {
 104                     System.Console.WriteLine("Unexpected exception from accessing non-existent document: " + e.Message);
 105                     System.Environment.Exit(1);
 106                 }
 107             }
 108
 109             // Check QueryParser parsing error.
 110             try {
 111                 Xapian.QueryParser qp = new Xapian.QueryParser();
 112                 qp.ParseQuery("test AND");
 113                 System.Console.WriteLine("Successfully parsed bad query");
 114                 System.Environment.Exit(1);
 115             } catch (System.Exception e) {
 116                 if (e.Message != "QueryParserError: Syntax: <expression> AND <expression>") {
 117                     System.Console.WriteLine("Exception string not as expected, got: '" + e.Message + "'");
 118                     System.Environment.Exit(1);
 119                 }
 120             }
 121
 122             {
 123                 Xapian.QueryParser qp = new Xapian.QueryParser();
 124                 // FIXME: It would be better if the (uint) cast wasn't required
 125                 // here.
 126                 qp.ParseQuery("hello world", (uint)Xapian.QueryParser.feature_flag.FLAG_BOOLEAN);
 127             }
 128
 129             if (Xapian.Query.MatchAll.GetDescription() != "Query(<alldocuments>)") {
 130                 System.Console.WriteLine("Unexpected Query.MatchAll.toString()");
 131                 System.Environment.Exit(1);
 132             }
 133
 134             if (Xapian.Query.MatchNothing.GetDescription() != "Query()") {
 135                 System.Console.WriteLine("Unexpected Query.MatchNothing.toString()");
 136                 System.Environment.Exit(1);
 137             }
 138
 139             // Check that OP_ELITE_SET works (in 0.9.6 and earlier it had the
 140             // wrong value in C#).
 141             try {
 142                 Xapian.Query foo = new Xapian.Query(Xapian.Query.op.OP_OR, "hello", "world");
 143                 Xapian.Query foo2 = new Xapian.Query(Xapian.Query.op.OP_ELITE_SET, foo, foo);
 144                 foo = foo2; // Avoid "unused variable" warning.
 145             } catch (System.Exception e) {
 146                 System.Console.WriteLine("Using OP_ELITE_SET cause exception '" + e.Message + "'");
 147                 System.Environment.Exit(1);
 148             }
 149
 150             // Feature test for MatchDecider.
 151             doc = new Xapian.Document();
 152             doc.SetData("Two");
 153             doc.AddPosting(stem.Apply("out"), 1);
 154             doc.AddPosting(stem.Apply("source"), 2);
 155             doc.AddValue(0, "yes");
 156             db.AddDocument(doc);
 157
 158             Xapian.Query query = new Xapian.Query(stem.Apply("out"));
 159             Xapian.Enquire enquire = new Xapian.Enquire(db);
 160             enquire.SetQuery(query);
 161             Xapian.MSet mset = enquire.GetMSet(0, 10, null, new TestMatchDecider());
 162             if (mset.Size() != 1) {
 163                 System.Console.WriteLine("MatchDecider found " + mset.Size().ToString() + " documents, expected 1");
 164                 System.Environment.Exit(1);
 165             }
 166             if (mset.GetDocId(0) != 2) {
 167                 System.Console.WriteLine("MatchDecider mset has wrong docid in");
 168                 System.Environment.Exit(1);
 169             }
 170
 171             mset = enquire.GetMSet(0, 10);
 172             for (Xapian.MSetIterator m = mset.Begin(); m != mset.End(); m++) {
 173                 // In Xapian 1.2.6 and earlier, the iterator would become
 174                 // eligible for garbage collection after being advanced.
 175                 // It didn't actually get garbage collected often, but when
 176                 // it did, it caused a crash.  Here we force a GC run to make
 177                 // this issue manifest if it is present.
 178                 System.GC.Collect();
 179                 System.GC.WaitForPendingFinalizers();
 180             }
 181
 182             // Test setting and getting metadata
 183             if (db.GetMetadata("Foo") !=  "") {
 184                 System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"\"");
 185                 System.Environment.Exit(1);
 186             }
 187             db.SetMetadata("Foo", "Foo");
 188             if (db.GetMetadata("Foo") !=  "Foo") {
 189                 System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"Foo\"");
 190                 System.Environment.Exit(1);
 191             }
 192
 193             // Test OP_SCALE_WEIGHT and corresponding constructor
 194             Xapian.Query query4 = new Xapian.Query(Xapian.Query.op.OP_SCALE_WEIGHT, new Xapian.Query("foo"), 5.0);
 195             if (query4.GetDescription() != "Query(5 * foo)") {
 196                 System.Console.WriteLine("Unexpected query4.GetDescription()");
 197                 System.Environment.Exit(1);
 198             }
 199
 200         } catch (System.Exception e) {
 201             System.Console.WriteLine("Exception: " + e.ToString());
 202             System.Environment.Exit(1);
 203         }
 204     }
 205 }