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// Simple test that we can use xapian from csharp
//
// Copyright (C) 2004,2005,2006,2007,2008,2011,2016,2019,2023 Olly Betts
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, see
// <https://www.gnu.org/licenses/>.
class TestMatchDecider : Xapian.MatchDecider {
public override bool Apply(Xapian.Document doc) {
return (doc.GetValue(0) == "yes");
}
}
class SmokeTest {
public static void Main() {
try {
// Test the version number reporting functions give plausible
// results.
string v = "";
v += Xapian.Version.Major();
v += ".";
v += Xapian.Version.Minor();
v += ".";
v += Xapian.Version.Revision();
string v2 = Xapian.Version.String();
if (v != v2) {
System.Console.WriteLine("Unexpected version output (" + v + " != " + v2 + ")");
System.Environment.Exit(1);
}
Xapian.Stem stem = new Xapian.Stem("english");
if (stem.GetDescription() != "Xapian::Stem(english)") {
System.Console.WriteLine("Unexpected stem.GetDescription()");
System.Environment.Exit(1);
}
Xapian.Document doc = new Xapian.Document();
// Currently SWIG doesn't generate zero-byte clean code for
// transferring strings between C# and C++.
doc.SetData("a\0b");
if (doc.GetData() != "a") {
System.Console.WriteLine("XPASS: GetData+SetData truncates at a zero byte");
System.Environment.Exit(1);
}
if (doc.GetData() == "a\0b") {
System.Console.WriteLine("XPASS: GetData+SetData doesn't transparently handle a zero byte");
System.Environment.Exit(1);
}
if (doc.GetDescription() != "Document(docid=0, data=a)") {
System.Console.WriteLine("XPASS: UTF-8 encoding of zero byte fixed!");
System.Environment.Exit(1);
}
// Surrogate pair case:
string falafel = "\U0001f9c6";
doc.SetData(falafel);
if (doc.GetData() != falafel) {
System.Console.WriteLine("getData+setData doesn't transparently handle a surrogate pair");
System.Environment.Exit(1);
}
if (doc.GetDescription() != "Document(docid=0, data=" + falafel + ")") {
System.Console.WriteLine("GetData+SetData doesn't transparently handle character >= U+10000");
System.Environment.Exit(1);
}
doc.SetData("is there anybody out there?");
doc.AddTerm("XYzzy");
doc.AddPosting(stem.Apply("is"), 1);
doc.AddPosting(stem.Apply("there"), 2);
doc.AddPosting(stem.Apply("anybody"), 3);
doc.AddPosting(stem.Apply("out"), 4);
doc.AddPosting(stem.Apply("there"), 5);
Xapian.WritableDatabase db = new Xapian.WritableDatabase("", Xapian.Xapian.DB_BACKEND_INMEMORY);
db.AddDocument(doc);
if (db.GetDocCount() != 1) {
System.Environment.Exit(1);
}
if (doc.TermListCount() != 5) {
System.Environment.Exit(1);
}
int count = 0;
Xapian.TermIterator i = doc.TermListBegin();
while (i != doc.TermListEnd()) {
++count;
++i;
}
if (count != 5) {
System.Environment.Exit(1);
}
// Check exception handling for Xapian::DocNotFoundError.
try {
Xapian.Document doc2 = db.GetDocument(2);
System.Console.WriteLine("Retrieved non-existent document: " + doc2.GetDescription());
System.Environment.Exit(1);
} catch (System.Exception e) {
// We expect DocNotFoundError
if (e.Message.Substring(0, 16) != "DocNotFoundError") {
System.Console.WriteLine("Unexpected exception from accessing non-existent document: " + e.Message);
System.Environment.Exit(1);
}
}
Xapian.QueryParser qp = new Xapian.QueryParser();
// Check QueryParser parsing error.
try {
qp.ParseQuery("test AND");
System.Console.WriteLine("Successfully parsed bad query");
System.Environment.Exit(1);
} catch (System.Exception e) {
if (e.Message != "QueryParserError: Syntax: <expression> AND <expression>") {
System.Console.WriteLine("Exception string not as expected, got: '" + e.Message + "'");
System.Environment.Exit(1);
}
}
// FIXME: It would be better if the (uint) cast wasn't required here.
qp.ParseQuery("hello world", (uint)Xapian.QueryParser.feature_flag.FLAG_BOOLEAN);
// Test wrapping of null-able grouping parameter.
qp.AddBooleanPrefix("colour", "XC");
qp.AddBooleanPrefix("color", "XC");
qp.AddBooleanPrefix("foo", "XFOO", null);
qp.AddBooleanPrefix("bar", "XBAR", "XBA*");
qp.AddBooleanPrefix("baa", "XBAA", "XBA*");
// FIXME: It would be better if the (uint) cast wasn't required here.
Xapian.DateRangeProcessor rpdate = new Xapian.DateRangeProcessor(1, (uint)Xapian.Xapian.RP_DATE_PREFER_MDY, 1960);
qp.AddRangeprocessor(rpdate);
qp.AddRangeprocessor(rpdate, null);
qp.AddRangeprocessor(rpdate, "foo");
if (Xapian.Query.MatchAll.GetDescription() != "Query(<alldocuments>)") {
System.Console.WriteLine("Unexpected Query.MatchAll.GetDescription()");
System.Environment.Exit(1);
}
if (Xapian.Query.MatchNothing.GetDescription() != "Query()") {
System.Console.WriteLine("Unexpected Query.MatchNothing.GetDescription()");
System.Environment.Exit(1);
}
// Check that OP_ELITE_SET works (in 0.9.6 and earlier it had the
// wrong value in C#).
try {
Xapian.Query foo = new Xapian.Query(Xapian.Query.op.OP_OR, "hello", "world");
Xapian.Query foo2 = new Xapian.Query(Xapian.Query.op.OP_ELITE_SET, foo, foo);
foo = foo2; // Avoid "unused variable" warning.
} catch (System.Exception e) {
System.Console.WriteLine("Using OP_ELITE_SET cause exception '" + e.Message + "'");
System.Environment.Exit(1);
}
// Feature test for MatchDecider.
doc = new Xapian.Document();
doc.SetData("Two");
doc.AddPosting(stem.Apply("out"), 1);
doc.AddPosting(stem.Apply("source"), 2);
doc.AddValue(0, "yes");
db.AddDocument(doc);
Xapian.Query query = new Xapian.Query(stem.Apply("out"));
Xapian.Enquire enquire = new Xapian.Enquire(db);
// Check Xapian::BAD_VALUENO is wrapped suitably.
enquire.SetCollapseKey(Xapian.Xapian.BAD_VALUENO);
enquire.SetQuery(query);
Xapian.MSet mset = enquire.GetMSet(0, 10, null, new TestMatchDecider());
if (mset.Size() != 1) {
System.Console.WriteLine("MatchDecider found " + mset.Size().ToString() + " documents, expected 1");
System.Environment.Exit(1);
}
if (mset.GetDocId(0) != 2) {
System.Console.WriteLine("MatchDecider mset has wrong docid in");
System.Environment.Exit(1);
}
mset = enquire.GetMSet(0, 10);
for (Xapian.MSetIterator m = mset.Begin(); m != mset.End(); m++) {
// In Xapian 1.2.6 and earlier, the iterator would become
// eligible for garbage collection after being advanced.
// It didn't actually get garbage collected often, but when
// it did, it caused a crash. Here we force a GC run to make
// this issue manifest if it is present.
System.GC.Collect();
System.GC.WaitForPendingFinalizers();
}
// Test setting and getting metadata
if (db.GetMetadata("Foo") != "") {
System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"\"");
System.Environment.Exit(1);
}
db.SetMetadata("Foo", "Foo");
if (db.GetMetadata("Foo") != "Foo") {
System.Console.WriteLine("db.GetMetadata(\"Foo\") returned wrong value \"" + db.GetMetadata("Foo") + "\" - expected \"Foo\"");
System.Environment.Exit(1);
}
// Test OP_SCALE_WEIGHT and corresponding constructor
Xapian.Query query4 = new Xapian.Query(Xapian.Query.op.OP_SCALE_WEIGHT, new Xapian.Query("foo"), 5.0);
if (query4.GetDescription() != "Query(5 * foo)") {
System.Console.WriteLine("Unexpected query4.GetDescription()");
System.Environment.Exit(1);
}
} catch (System.Exception e) {
System.Console.WriteLine("Exception: " + e.ToString());
System.Environment.Exit(1);
}
}
}
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