From 46726a6ff93f0e1aebf16d4566d3c98d1af86c62 Mon Sep 17 00:00:00 2001
From: ritzdorf <rihubert@inf.ethz.ch>
Date: Tue, 27 Jun 2017 14:42:35 +0200
Subject: [PATCH 1/3] Avoid division by zero which triggers exception. Compare
 directly to zero.

---
 strings_test.sol | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/strings_test.sol b/strings_test.sol
index efd182c7..6eccc9a6 100644
--- a/strings_test.sol
+++ b/strings_test.sol
@@ -86,15 +86,15 @@ contract StringsTest is Test {
     }
 
     function testCompare() {
-        assertEq(sign("foobie".toSlice().compare("foobie".toSlice())), 0);
-        assertEq(sign("foobie".toSlice().compare("foobie".toSlice())), 0);
+        assertEq("foobie".toSlice().compare("foobie".toSlice()), 0);
+        assertEq("foobie".toSlice().compare("foobie".toSlice()), 0);
         assertEq(sign("foobie".toSlice().compare("foobif".toSlice())), -1);
         assertEq(sign("foobie".toSlice().compare("foobid".toSlice())), 1);
         assertEq(sign("foobie".toSlice().compare("foobies".toSlice())), -1);
         assertEq(sign("foobie".toSlice().compare("foobi".toSlice())), 1);
         assertEq(sign("foobie".toSlice().compare("doobie".toSlice())), 1);
         assertEq(sign("01234567890123456789012345678901".toSlice().compare("012345678901234567890123456789012".toSlice())), -1);
-        assertEq(sign("foo.bar".toSlice().split(".".toSlice()).compare("foo".toSlice())), 0);
+        assertEq("foo.bar".toSlice().split(".".toSlice()).compare("foo".toSlice()), 0);
     }
 
     function testStartsWith() {

From a315155e52288124a096b707b17b00cf782ac174 Mon Sep 17 00:00:00 2001
From: ritzdorf <rihubert@inf.ethz.ch>
Date: Tue, 27 Jun 2017 14:52:20 +0200
Subject: [PATCH 2/3] Previous unicodes didn't work for me got message
 "contains invalid UTF-8 sequence at position 9".

---
 strings_test.sol | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/strings_test.sol b/strings_test.sol
index 6eccc9a6..78c2b425 100644
--- a/strings_test.sol
+++ b/strings_test.sol
@@ -66,14 +66,14 @@ contract StringsTest is Test {
     }
 
     function testNextRune() {
-        var s = "a¡ࠀ𐀡".toSlice();
+        var s = "a¡á→".toSlice();
         assertEq(s.nextRune(), "a");
-        assertEq(s, "¡ࠀ𐀡");
+        assertEq(s, "¡á→");
         assertEq(s.nextRune(), "¡");
-        assertEq(s, "ࠀ𐀡");
-        assertEq(s.nextRune(), "ࠀ");
-        assertEq(s, "𐀡");
-        assertEq(s.nextRune(), "𐀡");
+        assertEq(s, "á→");
+        assertEq(s.nextRune(), "á");
+        assertEq(s, "→");
+        assertEq(s.nextRune(), "→");
         assertEq(s, "");
         assertEq(s.nextRune(), "");
     }
@@ -81,8 +81,8 @@ contract StringsTest is Test {
     function testOrd() {
         assertEq("a".toSlice().ord(), 0x61);
         assertEq("¡".toSlice().ord(), 0xA1);
-        assertEq("ࠀ".toSlice().ord(), 0x800);
-        assertEq("𐀡".toSlice().ord(), 0x10021);
+        assertEq("á".toSlice().ord(), 0xE1);
+        assertEq("→".toSlice().ord(), 0x2192);
     }
 
     function testCompare() {

From d9b41b2c7cd06e41d28228a364f0af7cdd2d0625 Mon Sep 17 00:00:00 2001
From: ritzdorf <rihubert@inf.ethz.ch>
Date: Tue, 27 Jun 2017 14:53:20 +0200
Subject: [PATCH 3/3] add pragma to get rid of warning

---
 strings.sol      | 1 +
 strings_test.sol | 1 +
 2 files changed, 2 insertions(+)

diff --git a/strings.sol b/strings.sol
index 0a2d68bd..7f2d0ef4 100644
--- a/strings.sol
+++ b/strings.sol
@@ -1,3 +1,4 @@
+pragma solidity ^0.4.11;
 /*
  * @title String & slice utility library for Solidity contracts.
  * @author Nick Johnson <arachnid@notdot.net>
diff --git a/strings_test.sol b/strings_test.sol
index 78c2b425..aa90b310 100644
--- a/strings_test.sol
+++ b/strings_test.sol
@@ -1,3 +1,4 @@
+pragma solidity ^0.4.11;
 import 'dapple/test.sol';
 import 'strings.sol';