From b4c768b1010e1ae491913dbfaaef189de5fe134f Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Thu, 14 Nov 2013 14:46:28 -0600
Subject: [PATCH] Regex: Test Pattern#split(String)

The particular pattern we use to test it is used in ImgLib2, based on
this answer on stackoverflow:

	http://stackoverflow.com/a/279337

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 test/Regex.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/Regex.java b/test/Regex.java
index 6a5e0909ad..16b50745fa 100644
--- a/test/Regex.java
+++ b/test/Regex.java
@@ -44,6 +44,16 @@ public class Regex {
     expect(!matcher.find());
   }
 
+  private static void expectSplit(String regex, String string,
+      String... list)
+  {
+    String[] array = Pattern.compile(regex).split(string);
+    expect(array.length == list.length);
+    for (int i = 0; i < list.length; ++ i) {
+      expect(list[i].equals(array[i]));
+    }
+  }
+
   public static void main(String[] args) {
     expectMatch("a(bb)?a", "abba");
     expectNoMatch("a(bb)?a", "abbba");
@@ -69,5 +79,7 @@ public class Regex {
     expectMatch("\\x4A", "J");
     expectMatch("\\x61", "a");
     expectMatch("\\078", "\0078");
+    expectSplit("(?<=\\w)(?=\\W)|(?<=\\W)(?=\\w)", "a + b * x",
+      "a", " + ", "b", " * ", "x");
   }
 }