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 class TestMatchDecider : Xapian.MatchDecider {
  21     public override bool Apply(Xapian.Document doc) {
  22         return (doc.GetValue(0) == "yes");
  23     }
  24 }
  25
  26 class SmokeTest {
  27     public static void Main() {
  28         try {
  29             // Test the version number reporting functions give plausible
  30             // results.
  31             string v = "";
  32             v += Xapian.Version.Major();
  33             v += ".";
  34             v += Xapian.Version.Minor();
  35             v += ".";
  36             v += Xapian.Version.Revision();
  37             string v2 = Xapian.Version.String();
  38             if (v != v2) {
  39                 System.Console.WriteLine("Unexpected version output (" + v + " != " + v2 + ")");
  40                 System.Environment.Exit(1);
  41             }
  42
  43             Xapian.Stem stem = new Xapian.Stem("english");
  44             Xapian.Document doc = new Xapian.Document();
  45             // Currently SWIG doesn't generate zero-byte clean code for
  46             // transferring strings between C# and C++.
  47             /*
  48             doc.SetData("a\0b");
  49             if (doc.GetData() == "a") {
  50                 System.Console.WriteLine("GetData+SetData truncates at a zero byte");
  51                 System.Environment.Exit(1);
  52             }
  53             if (doc.GetData() != "a\0b") {
  54                 System.Console.WriteLine("GetData+SetData doesn't transparently handle a zero byte");
  55                 System.Environment.Exit(1);
  56             }
  57             */
  58             doc.SetData("is there anybody out there?");
  59             doc.AddTerm("XYzzy");
  60             doc.AddPosting(stem.Apply("is"), 1);
  61             doc.AddPosting(stem.Apply("there"), 2);
  62             doc.AddPosting(stem.Apply("anybody"), 3);
  63             doc.AddPosting(stem.Apply("out"), 4);
  64             doc.AddPosting(stem.Apply("there"), 5);
  65
  66             Xapian.WritableDatabase db = new Xapian.WritableDatabase("", Xapian.Xapian.DB_BACKEND_INMEMORY);
  67             db.AddDocument(doc);
  68             if (db.GetDocCount() != 1) {
  69                 System.Environment.Exit(1);
  70             }
  71
  72             if (doc.TermListCount() != 5) {
  73                 System.Environment.Exit(1);
  74             }
  75             int count = 0;
  76             Xapian.TermIterator i = doc.TermListBegin();
  77             while (i != doc.TermListEnd()) {
  78                 ++count;
  79                 ++i;
  80             }
  81             if (count != 5) {
  82                 System.Environment.Exit(1);
  83             }
  84
  85             // Check exception handling for Xapian::DocNotFoundError.
  86             try {
  87                 Xapian.Document doc2 = db.GetDocument(2);
  88                 System.Console.WriteLine("Retrieved non-existent document: " + doc2.ToString());
  89                 System.Environment.Exit(1);
  90             } catch (System.Exception e) {
  91                 // We expect DocNotFoundError
  92                 if (e.Message.Substring(0, 16) != "DocNotFoundError") {
  93                     System.Console.WriteLine("Unexpected exception from accessing non-existent document: " + e.Message);
  94                     System.Environment.Exit(1);
  95                 }
  96             }
  97
  98             // Check QueryParser parsing error.
  99             try {
 100                 Xapian.QueryParser qp = new Xapian.QueryParser();
 101                 qp.ParseQuery("test AND");
 102                 System.Console.WriteLine("Successfully parsed bad query");
 103                 System.Environment.Exit(1);
 104             } catch (System.Exception e) {
 105                 if (e.Message != "QueryParserError: Syntax: <expression> AND <expression>") {
 106                     System.Console.WriteLine("Exception string not as expected, got: '" + e.Message + "'");
 107                     System.Environment.Exit(1);
 108                 }
 109             }
 110
 111             {
 112                 Xapian.QueryParser qp = new Xapian.QueryParser();
 113                 // FIXME: It would be better if the (uint) cast wasn't required
 114                 // here.
 115                 qp.ParseQuery("hello world", (uint)Xapian.QueryParser.feature_flag.FLAG_BOOLEAN);
 116             }
 117
 118             if (Xapian.Query.MatchAll.GetDescription() != "Query(<alldocuments>)") {
 119                 System.Console.WriteLine("Unexpected Query.MatchAll.toString()");
 120                 System.Environment.Exit(1);
 121             }
 122
 123             if (Xapian.Query.MatchNothing.GetDescription() != "Query()") {
 124                 System.Console.WriteLine("Unexpected Query.MatchNothing.toString()");
 125                 System.Environment.Exit(1);
 126             }
 127
 128             // Check that OP_ELITE_SET works (in 0.9.6 and earlier it had the
 129             // wrong value in C#).
 130             try {
 131                 Xapian.Query foo = new Xapian.Query(Xapian.Query.op.OP_OR, "hello", "world");
 132                 Xapian.Query foo2 = new Xapian.Query(Xapian.Query.op.OP_ELITE_SET, foo, foo);
 133                 foo = foo2; // Avoid "unused variable" warning.
 134             } catch (System.Exception e) {
 135                 System.Console.WriteLine("Using OP_ELITE_SET cause exception '" + e.Message + "'");
 136                 System.Environment.Exit(1);
 137             }
 138
 139             // Feature test for MatchDecider.
 140             doc = new Xapian.Document();
 141             doc.SetData("Two");
 142             doc.AddPosting(stem.Apply("out"), 1);
 143             doc.AddPosting(stem.Apply("source"), 2);
 144             doc.AddValue(0, "yes");
 145             db.AddDocument(doc);
 146
 147             Xapian.Query query = new Xapian.Query(stem.Apply("out"));
 148             Xapian.Enquire enquire = new Xapian.Enquire(db);
 149             enquire.SetQuery(query);
 150             Xapian.MSet mset = enquire.GetMSet(0, 10, null, new TestMatchDecider());
 151             if (mset.Size() != 1) {
 152                 System.Console.WriteLine("MatchDecider found " + mset.Size().ToString() + " documents, expected 1");
 153                 System.Environment.Exit(1);
 154             }
 155             if (mset.GetDocId(0) != 2) {
 156                 System.Console.WriteLine("MatchDecider mset has wrong docid in");
 157                 System.Environment.Exit(1);
 158             }
 159
 160             mset = enquire.GetMSet(0, 10);
 161             for (Xapian.MSetIterator m = mset.Begin(); m != mset.End(); m++) {
 162                 // In Xapian 1.2.6 and earlier, the iterator would become
 163                 // eligible for garbage collection after being advanced.
 164                 // It didn't actually get garbage collected often, but when
 165                 // it did, it caused a crash.  Here we force a GC run to make
 166                 // this issue manifest if it is present.
 167                 System.GC.Collect();
 168                 System.GC.WaitForPendingFinalizers();
 169             }
 170
 171             // Test setting and getting metadata
 172             if (db.GetMetadata("Foo") !=  "") {
 173                 System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"\"");
 174                 System.Environment.Exit(1);
 175             }
 176             db.SetMetadata("Foo", "Foo");
 177             if (db.GetMetadata("Foo") !=  "Foo") {
 178                 System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"Foo\"");
 179                 System.Environment.Exit(1);
 180             }
 181
 182             // Test OP_SCALE_WEIGHT and corresponding constructor
 183             Xapian.Query query4 = new Xapian.Query(Xapian.Query.op.OP_SCALE_WEIGHT, new Xapian.Query("foo"), 5.0);
 184             if (query4.GetDescription() != "Query(5 * foo)") {
 185                 System.Console.WriteLine("Unexpected query4.GetDescription()");
 186                 System.Environment.Exit(1);
 187             }
 188
 189         } catch (System.Exception e) {
 190             System.Console.WriteLine("Exception: " + e.ToString());
 191             System.Environment.Exit(1);
 192         }
 193     }
 194 }