public void ShouldReadTokens(string query, object expectedKind, object expectedValue)
{
// Given
var reader = new QueryTokenReader(query);
// When
var token = reader.ReadNext();
// Then
Assert.IsNotNull(token);
Assert.AreEqual(expectedKind, token.Kind);
Assert.AreEqual(expectedValue, token.Value);
}
public void ShouldReadComplexQuery()
{
// Given
var reader = new QueryTokenReader("eq('Company', 'Abc'), lt('Price', 100)");
// When & Then
Assert.IsTrue(reader.CanRead());
var token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.Identifier, token.Kind);
Assert.AreEqual("eq", token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.OpenBracket, token.Kind);
Assert.AreEqual('(', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.String, token.Kind);
Assert.AreEqual("Company", token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.ArgumentSeparator, token.Kind);
Assert.AreEqual(',', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.String, token.Kind);
Assert.AreEqual("Abc", token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.CloseBracket, token.Kind);
Assert.AreEqual(')', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.ArgumentSeparator, token.Kind);
Assert.AreEqual(',', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.Identifier, token.Kind);
Assert.AreEqual("lt", token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.OpenBracket, token.Kind);
Assert.AreEqual('(', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.String, token.Kind);
Assert.AreEqual("Price", token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.ArgumentSeparator, token.Kind);
Assert.AreEqual(',', token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.Integer, token.Kind);
Assert.AreEqual(100, token.Value);
Assert.IsTrue(reader.CanRead());
token = reader.ReadNext();
Assert.IsNotNull(token);
Assert.AreEqual(QueryTokenKind.CloseBracket, token.Kind);
Assert.AreEqual(')', token.Value);
Assert.IsFalse(reader.CanRead());
token = reader.ReadNext();
Assert.IsNull(token);
}