/
ParserTestUtils.scala
56 lines (43 loc) · 1.86 KB
/
ParserTestUtils.scala
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package troy
package cql.parser
import org.scalatest.{ FlatSpec, Matchers }
import troy.cql.ast._
import troy.cql.ast.dml.Insert.NamesValues
object ParserTestUtils extends FlatSpec with Matchers {
def parseSchema(statement: String) =
handleParseFailure(CqlParser.parseSchema(statement))
def parseSchemaAs[T](statement: String) =
parseSchema(statement)
.head
.asInstanceOf[T]
def parseCreateTable(statement: String) =
parseSchemaAs[CreateTable](statement)
def schemaError(statement: String) =
handleUnexpectedParseSuccess(CqlParser.parseSchema(statement))
def parseQuery(statement: String) =
handleParseFailure(CqlParser.parseDML(statement))
def queryError(statement: String) =
handleUnexpectedParseSuccess(CqlParser.parseDML(statement))
private[this] def handleParseFailure[T](parsed: => CqlParser.ParseResult[T]): T =
parsed match {
case CqlParser.Success(res, _) => res
case CqlParser.Failure(msg, next) => fail(s"Parse Failure: $msg, line = ${next.pos.line}, column = ${next.pos.column}")
case CqlParser.Error(msg, _) => throw new Exception(msg)
}
private[this] def handleUnexpectedParseSuccess(parsed: => CqlParser.ParseResult[_]): String =
parsed match {
case CqlParser.Success(res, _) => fail(s"Parse unexpectedly succeeded with: $res")
case CqlParser.Failure(msg, next) => msg
case CqlParser.Error(msg, _) => throw new Exception(msg)
}
def parseSelect(statement: String) =
parseQuery(statement).asInstanceOf[SelectStatement]
def parseInsert(statement: String) =
parseQuery(statement).asInstanceOf[InsertStatement]
object InsertUtils {
val parse = parseInsert _
implicit class InsertStatementHelpers(val statement: InsertStatement) extends AnyVal {
def values = statement.insertClause.asInstanceOf[NamesValues].values.values
}
}
}