public void GetPostingsTest_NearNotExist_ReturnsEmpty()
{
NearLiteral near = new NearLiteral("is", 1, "mystery"); //[is NEAR/1 mystery]
IList <Posting> result = near.GetPostings(index, processor);
result.Should().BeEmpty("because there's no document that \'mystery\' appears 1 away from \'is\'");
}
public void ParsingNearQueryTest_ReturnsNearLiteral()
{
//Arrange
string query = "[lemon NEAR/2 orange]";
NearLiteral expected = new NearLiteral("lemon", 2, "orange");
//Act
IQueryComponent actual = parser.ParseQuery(query);
//Assert
actual.Should().BeOfType(typeof(NearLiteral));
((NearLiteral)actual).ToString().Should().BeEquivalentTo(expected.ToString());
}
public void GetPostingsTest_NearExist_ReturnsSomePos()
{
//Test for exact words
NearLiteral near1 = new NearLiteral("is", 4, "mystery"); //[is NEAR/4 mystery]
IList <Posting> result1 = near1.GetPostings(index, processor);
result1.Should().HaveCount(3);
//Test for stemmed words
//[it NEAR/2 snowing] will also search [it NEAR/2 snow] and [it NEAR/2 snows]
NearLiteral near2 = new NearLiteral("it", 2, "snowing");
NearLiteral near3 = new NearLiteral("it", 2, "snows");
IList <Posting> result2 = near2.GetPostings(index, processor);
IList <Posting> result3 = near3.GetPostings(index, processor);
result2.Should().HaveSameCount(result3, "because processed \'snowing\' should include result of \'snow\' and \'snows\'");
}
