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package org.perl8.test.tap
import org.perl8.test.{Plan,NumericPlan,SkipAll}
/** Contains a method to parse an individual line of TAP. */
object Consumer {
/** Parses a line of TAP.
*
* @return A [[org.perl8.test.tap.Consumer.Line Line]] object corresponding
* to the parsed line.
*/
def parseLine (line: String): Line = {
commentRx.findFirstMatchIn(line).map { m =>
m.subgroups match {
case Seq(indent, text) => new CommentLine(text, indent)
}
}.getOrElse {
planRx.findFirstMatchIn(line).map { m =>
m.subgroups match {
case Seq(indent, p, null) =>
new PlanLine(NumericPlan(p.toInt), indent)
case Seq(indent, _, skip) =>
new PlanLine(SkipAll(skip), indent)
}
}.getOrElse {
resultRx.findFirstMatchIn(line).map { m =>
val indent = m.group(1)
val passed = m.group(2) == null
val number = m.group(3).toInt
val description = m.group(4) match {
case null => ""
case s => s.trim
}
val directive = (m.group(5), m.group(6)) match {
case (null, null) => None
case (d, r) => {
val reason = if (r == null) "" else r
"""(?i:skip)""".r.findFirstIn(d) match {
case Some(_) => Some(new SkipDirective(Some(reason)))
case None => Some(new TodoDirective(Some(reason)))
}
}
}
val result = new TestResult(
passed,
number,
description,
directive,
None
)
new ResultLine(result, indent)
}.getOrElse {
throw ParseException("Couldn't parse line: " + line)
}
}
}
}
/** The representation of a parsed line of TAP. */
sealed trait Line {
/** The meaningful portion of the TAP line. */
def contents: String
/** The indentation of the TAP line (used in subtests). */
def indent: String
/** The line itself that was parsed. */
override def toString: String =
indent + contents
}
/** A parsed TAP line containing a comment.
*
* @param text The text of the comment (not including the `#`).
*/
case class CommentLine private[Consumer] (
text: String,
indent: String
) extends Line {
def contents = "# " + text
}
/** A parsed TAP line containing a test plan.
*
* @param plan The [[org.perl8.test.Plan Plan]] that this line represents.
*/
case class PlanLine private[Consumer] (
plan: Plan,
indent: String
) extends Line {
def contents = {
val count = plan.plan
val comment = plan match {
case SkipAll(m) => " # SKIP " + m
case _ => ""
}
indent + "1.." + count + comment
}
}
/** A parsed TAP line containing a test result.
*
* @param result The [[org.perl8.test.tap.TestResult TestResult]] that this
* line represents.
*/
case class ResultLine private[Consumer] (
result: TestResult,
indent: String
) extends Line {
def contents = {
val success = (if (result.passed) "ok" else "not ok") + " "
val number = result.number + " "
val description = result.description match {
case "" => ""
case s => s + " "
}
val directive = result.directive.map { d =>
d match {
case TodoDirective(m) => "# TODO " + m
case SkipDirective(m) => "# skip " + m
}
}.getOrElse("")
indent + success + number + description + directive
}
}
private val commentRx = """^(\s*)#\s*(.*)""".r
private val planRx = """^(\s*)1..(\d+)\s*(?:# SKIP (.*))?""".r
private val resultRx =
"""^(\s*)(not )?ok (\d+)\s*([^#]+)?(?:#\s*(?i:(skip|todo))\s+(.*))?""".r
}
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