From 8fda832b80177432ef15021fe164de8ec438bd20 Mon Sep 17 00:00:00 2001
From: Shekhar Gulati <shekhargulati84@gmail.com>
Date: Mon, 16 May 2016 18:17:41 +0530
Subject: [PATCH] Added support for `base64Decode`

---
 src/main/java/strman/Strman.java     | 15 +++++++++++++--
 src/test/java/strman/StrmanTest.java |  8 ++++++++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/main/java/strman/Strman.java b/src/main/java/strman/Strman.java
index 0eb981e..2316b5a 100644
--- a/src/main/java/strman/Strman.java
+++ b/src/main/java/strman/Strman.java
@@ -1,6 +1,7 @@
 package strman;
 
 import java.util.Arrays;
+import java.util.Base64;
 import java.util.Optional;
 import java.util.StringJoiner;
 import java.util.function.Predicate;
@@ -143,9 +144,9 @@ public abstract class Strman {
     public static boolean contains(final String value, final String needle, final boolean caseSensitive) {
         validate(value, NULL_STRING_PREDICATE, NULL_STRING_MSG_SUPPLIER);
         if (caseSensitive) {
-            return value.indexOf(needle) > -1;
+            return value.contains(needle);
         }
-        return value.toLowerCase().indexOf(needle.toLowerCase()) > -1;
+        return value.toLowerCase().contains(needle.toLowerCase());
     }
 
     /**
@@ -294,6 +295,16 @@ public abstract class Strman {
         return _value.startsWith(_prefix) ? value : prefix + value;
     }
 
+    /**
+     * Decodes data encoded with MIME base64
+     *
+     * @param value The data to decode
+     * @return decoded data
+     */
+    public static String base64Decode(final String value) {
+        return new String(Base64.getDecoder().decode(value));
+    }
+
     private static long countSubstr(String value, String subStr, boolean allowOverlapping, long count) {
         int position = value.indexOf(subStr);
         if (position == -1) {
diff --git a/src/test/java/strman/StrmanTest.java b/src/test/java/strman/StrmanTest.java
index 5184094..eb10f41 100644
--- a/src/test/java/strman/StrmanTest.java
+++ b/src/test/java/strman/StrmanTest.java
@@ -246,5 +246,13 @@ public class StrmanTest {
         assertThat(ensureLeft("bar", "FOO", false), equalTo("FOObar"));
     }
 
+    @Test
+    public void base64Decode_shouldDecodeABase64DecodedValueToString() throws Exception {
+        assertThat(base64Decode("c3RybWFu"), equalTo("strman"));
+        assertThat(base64Decode("Zm9v"), equalTo("foo"));
+        assertThat(base64Decode("YmFy"), equalTo("bar"));
+        assertThat(base64Decode("YsOhciE="), equalTo("bár!"));
+        assertThat(base64Decode("5ryi"), equalTo("漢"));
 
+    }
 }
\ No newline at end of file