public void Test_can_parse_binary_expression_for_two_parenthesized_expressions()
{
CmsqlParser cmsqlParser =
CmsqlParserFactory.CreateParserForQuery(
"(jon != 'stark' and john = 'snow') or (arya = 'stark' and sansa = 'stark')");
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryBinaryExpression>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryBinaryExpression>();
binaryExpression.RightExpression.Should().NotBeNull();
CmsqlQueryBinaryExpression leftParenthesizedBinaryExpression = (CmsqlQueryBinaryExpression)binaryExpression.LeftExpression;
leftParenthesizedBinaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
leftParenthesizedBinaryExpression.LeftExpression.Should().NotBeNull();
leftParenthesizedBinaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
leftParenthesizedBinaryExpression.RightExpression.Should().NotBeNull();
CmsqlQueryBinaryExpression rightParenthesizedBinaryExpression = (CmsqlQueryBinaryExpression)binaryExpression.RightExpression;
rightParenthesizedBinaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
rightParenthesizedBinaryExpression.LeftExpression.Should().NotBeNull();
rightParenthesizedBinaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
rightParenthesizedBinaryExpression.RightExpression.Should().NotBeNull();
}
public void Test_can_parse_single_condition_as_expression()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("where foo != 'bar'");
CmsqlParser.WhereClauseContext parseTree = cmsqlParser.whereClause();
WhereClauseVisitor visitor = new WhereClauseVisitor();
ICmsqlQueryExpression expression = visitor.VisitWhereClause(parseTree);
expression.Should().BeOfType <CmsqlQueryCondition>();
}
public void Test_can_parse_valid_content_type_identifier(string queryIdentifier)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery($"select {queryIdentifier}");
CmsqlParser.SelectClauseContext parseTree = cmsqlParser.selectClause();
SelectClauseVisitor visitor = new SelectClauseVisitor();
string identifier = visitor.VisitSelectClause(parseTree);
identifier.ShouldBeEquivalentTo(queryIdentifier);
}
public void Test_can_parse_arbitrary_id_as_start_node(string id)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery($"from {id}");
CmsqlParser.FromClauseContext parseTree = cmsqlParser.fromClause();
FromClauseVisitor visitor = new FromClauseVisitor();
CmsqlQueryStartNode startNode = visitor.VisitFromClause(parseTree);
startNode.StartNodeId.ShouldBeEquivalentTo(id);
startNode.StartNodeType.ShouldBeEquivalentTo(CmsqlQueryStartNodeType.Id);
}
public void Test_can_parse_root_as_start_node()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("from root");
CmsqlParser.FromClauseContext parseTree = cmsqlParser.fromClause();
FromClauseVisitor visitor = new FromClauseVisitor();
CmsqlQueryStartNode startNode = visitor.VisitFromClause(parseTree);
startNode.StartNodeId.Should().BeNullOrEmpty();
startNode.StartNodeType.ShouldBeEquivalentTo(CmsqlQueryStartNodeType.Root);
}
public void Test_can_parse_multiple_valid_queries_without_where_clause(string query)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery(query);
CmsqlParser.QueriesContext parseTree = cmsqlParser.queries();
QueriesVisitor visitor = new QueriesVisitor();
IEnumerable <CmsqlQuery> queries = visitor.VisitQueries(parseTree);
queries.Should().NotBeNullOrEmpty();
queries.Should().HaveCount(3);
}
public void Test_can_parse_grouped_expression_and_condition()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("where (bar = 'foo' and foo = 'bar') or foo != 'bar'");
CmsqlParser.WhereClauseContext parseTree = cmsqlParser.whereClause();
WhereClauseVisitor visitor = new WhereClauseVisitor();
CmsqlQueryBinaryExpression binaryExpression = visitor.VisitWhereClause(parseTree) as CmsqlQueryBinaryExpression;
binaryExpression.Operator.ShouldBeEquivalentTo(ConditionalOperator.Or);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryBinaryExpression>();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
}
public void Test_can_parse_less_than_or_equals_condition()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("foo <= 'bar'");
CmsqlParser.ConditionContext parseTree = cmsqlParser.condition();
ConditionVisitor visitor = new ConditionVisitor();
CmsqlQueryCondition condition = visitor.VisitCondition(parseTree);
condition.Identifier.ShouldBeEquivalentTo("foo");
condition.Operator.ShouldBeEquivalentTo(EqualityOperator.LessThanOrEquals);
condition.Value.ShouldBeEquivalentTo("bar");
}
public void Test_can_parse_parenthesized_expression_containing_condition_expression()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("(foo != 'bar')");
CmsqlParser.ParenthesizedExpressionContext parseTree =
(CmsqlParser.ParenthesizedExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
ICmsqlQueryExpression expression = visitor.VisitParenthesizedExpression(parseTree);
expression.Should().BeOfType <CmsqlQueryCondition>();
expression.Should().NotBeNull();
}
public void Test_can_parse_condition_as_expression()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("foo != 'bar'");
CmsqlParser.ConditionExpressionContext parseTree =
(CmsqlParser.ConditionExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
ICmsqlQueryExpression expression = visitor.VisitConditionExpression(parseTree);
expression.Should().BeOfType <CmsqlQueryCondition>();
expression.Should().NotBeNull();
}
public void Test_can_parse_valid_query_with_where_clause_with_terminator(string query)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery(query);
CmsqlParser.QueryContext parseTree = cmsqlParser.query();
QueryVisitor visitor = new QueryVisitor();
CmsqlQuery cmsqlQuery = visitor.VisitQuery(parseTree);
cmsqlQuery.Should().NotBeNull();
cmsqlQuery.ContentType.Should().NotBeNullOrEmpty();
cmsqlQuery.StartNode.Should().NotBeNull();
cmsqlQuery.Criteria.Should().NotBeNull();
}
public void Test_can_parse_parenthesized_expression_for_binary_expression()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("(foo != 'bar' and bar = 'foo')");
CmsqlParser.ParenthesizedExpressionContext parseTree =
(CmsqlParser.ParenthesizedExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitParenthesizedExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.RightExpression.Should().NotBeNull();
}
public void Test_can_parse_binary_expression_containing_parenthesized_expression_and_condition_expression(string queryExpression)
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery(queryExpression);
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.RightExpression.Should().NotBeNull();
}
public void Test_can_binary_expression_containing_two_condition_expressions()
{
CmsqlParser cmsqlParser = CmsqlParserFactory.CreateParserForQuery("foo != 'bar' and bar = 'foo'");
CmsqlParser.BinaryExpressionContext parseTree =
(CmsqlParser.BinaryExpressionContext)cmsqlParser.expression();
ExpressionVisitor visitor = new ExpressionVisitor();
CmsqlQueryBinaryExpression binaryExpression = (CmsqlQueryBinaryExpression)visitor.VisitBinaryExpression(parseTree);
binaryExpression.LeftExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.LeftExpression.Should().NotBeNull();
binaryExpression.RightExpression.Should().BeOfType <CmsqlQueryCondition>();
binaryExpression.RightExpression.Should().NotBeNull();
}
