Fix: StringIndexOutOfBoundsException.

Bug: 14985751
Change-Id: I9df2f737555ab02e24e0fbd231a97c1eec26bc57

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/src/com/android/inputmethod/latin/utils/StringAndJsonUtilsTests.java b/tests/src/com/android/inputmethod/latin/utils/StringAndJsonUtilsTests.java
index 2a4ead383..bdc608a00 100644
--- a/tests/src/com/android/inputmethod/latin/utils/StringAndJsonUtilsTests.java
+++ b/tests/src/com/android/inputmethod/latin/utils/StringAndJsonUtilsTests.java
@@ -372,4 +372,14 @@ public class StringAndJsonUtilsTests extends AndroidTestCase {
         assertTrue("copyCodePointsAndReturnCodePointCount throws when array is too small",
                 exceptionHappened);
     }
+
+    public void testGetTrailingSingleQuotesCount() {
+        assertEquals(0, StringUtils.getTrailingSingleQuotesCount(""));
+        assertEquals(1, StringUtils.getTrailingSingleQuotesCount("'"));
+        assertEquals(5, StringUtils.getTrailingSingleQuotesCount("'''''"));
+        assertEquals(0, StringUtils.getTrailingSingleQuotesCount("a"));
+        assertEquals(0, StringUtils.getTrailingSingleQuotesCount("'this"));
+        assertEquals(1, StringUtils.getTrailingSingleQuotesCount("'word'"));
+        assertEquals(0, StringUtils.getTrailingSingleQuotesCount("I'm"));
+    }
 }