Add date math test coverage for issue #101

The Lucene parser correctly handles date math expressions like now/d+30d/d in range queries. Strengthened the existing CanHandleDateRange test with round-trip and node-level assertions, and added date math variations to the ValidQueries theory.

Closes #101

Made-with: Cursor

Author: niemyjski

tests/Foundatio.Parsers.LuceneQueries.Tests/QueryParserTests.cs

@@ -146,7 +146,7 @@ public void DataBackslashShouldBeValidBeginningOfString()
     }
 
     [Fact]
-    public void CanHandleDateRange()
+    public async Task CanHandleDateRange()
     {
 #if FALSE
         var tracer = new LoggingTracer(_logger, reportPerformance: true);
@@ -160,6 +160,19 @@ public void CanHandleDateRange()
         string query = "mydate:[now/d TO now/d+30d/d]";
         var result = sut.Parse(query);
         _logger.LogInformation(DebugQueryVisitor.Run(result));
+
+        string generatedQuery = await GenerateQueryVisitor.RunAsync(result);
+        Assert.Equal(query, generatedQuery);
+
+        var groupNode = result as GroupNode;
+        Assert.NotNull(groupNode);
+        var rangeNode = groupNode.Left as TermRangeNode;
+        Assert.NotNull(rangeNode);
+        Assert.Equal("mydate", rangeNode.Field);
+        Assert.Equal("now/d", rangeNode.Min);
+        Assert.Equal("now/d+30d/d", rangeNode.Max);
+        Assert.True(rangeNode.MinInclusive);
+        Assert.True(rangeNode.MaxInclusive);
     }
 
     [Fact]

tests/Foundatio.Parsers.LuceneQueries.Tests/QueryParserValidationTests.cs

@@ -50,6 +50,10 @@ public QueryParserValidationTests(ITestOutputHelper output) : base(output)
     [InlineData("book.\\*:(quick brown)")]
     [InlineData("date:[now/d-4d TO now/d+1d}")]
     [InlineData("(date:[now/d-4d TO now/d+1d})")]
+    [InlineData("date:[now/d TO now/d+30d/d]")]
+    [InlineData("date:[now/d TO now+30d/d]")]
+    [InlineData("date:>now+1h")]
+    [InlineData("date:<now-1d/d")]
     [InlineData("data.date:>now")]
     [InlineData("data.date:[now/d-4d TO now/d+1d}")]
     [InlineData("data.date:[2012-01-01 TO 2012-12-31]")]