blob: 38662c34b526bf5e5ba263c462d80cc0c66b7ee0 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/* NSC -- new Scala compiler
* Copyright 2005-2013 LAMP/EPFL
* @author Paul Phillips
*/
package scala.tools.partest
import scala.tools.nsc.Settings
import scala.tools.nsc.interpreter.ILoop
import java.lang.reflect.{ Method => JMethod, Field => JField }
/** A trait for testing repl code. It drops the first line
* of output because the real repl prints a version number.
*/
abstract class ReplTest extends DirectTest {
// override to transform Settings object immediately before the finish
def transformSettings(s: Settings): Settings = s
// final because we need to enforce the existence of a couple settings.
final override def settings: Settings = {
val s = super.settings
// s.Yreplsync.value = true
s.Xnojline.value = true
transformSettings(s)
}
def eval() = {
val s = settings
log("eval(): settings = " + s)
ILoop.runForTranscript(code, s).lines drop 1
}
def show() = eval() foreach println
}
/** Run a REPL test from a session transcript.
* The `session` should be a triple-quoted String starting
* with the `Type in expressions` message and ending
* after the final `prompt`, including the last space.
*/
abstract class SessionTest extends ReplTest {
/** Session transcript, as a triple-quoted, multiline, marginalized string. */
def session: String
/** Expected output, as an iterator. */
def expected = session.stripMargin.lines
/** Code is the command list culled from the session (or the expected session output).
* Would be nicer if code were lazy lines.
*/
override final def code = expected filter (_ startsWith prompt) map (_ drop prompt.length) mkString "\n"
final def prompt = "scala> "
/** Default test is to compare expected and actual output and emit the diff on a failed comparison. */
override def show() = {
val evaled = eval().toList
val wanted = expected.toList
if (evaled.size != wanted.size) Console println s"Expected ${wanted.size} lines, got ${evaled.size}"
if (evaled != wanted) Console print nest.FileManager.compareContents(wanted, evaled, "expected", "actual")
}
}
|
