From dca8be01de6f8cc44135c0528bba0fc4d25c3a44 Mon Sep 17 00:00:00 2001
From: sebres <sebres@users.sourceforge.net>
Date: Thu, 15 Nov 2018 22:18:29 +0000
Subject: test cases for decode base64, bug [00d04c4f12], unfulfilled base64
 (strict and non-strict mode, etc).

---
 tests/binary.test | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/tests/binary.test b/tests/binary.test
index 2a306a3..8c1dedb 100644
--- a/tests/binary.test
+++ b/tests/binary.test
@@ -2711,6 +2711,46 @@ test binary-73.30 {binary decode base64} -body {
 test binary-73.31 {binary decode base64} -body {
     list [string length [set r [binary decode base64 WA==WFla]]] $r
 } -returnCodes error -match glob -result {invalid base64 character *}
+test binary-73.32 {binary decode base64, bug [00d04c4f12]} -body {
+    list \
+	[string length [binary decode base64 =]] \
+	[string length [binary decode base64 " ="]] \
+	[string length [binary decode base64 "   ="]] \
+	[string length [binary decode base64 "\r\n\t="]] \
+} -result [lrepeat 4 0]
+test binary-73.33 {binary decode base64, bug [00d04c4f12]} -body {
+    list \
+	[string length [binary decode base64 ==]] \
+	[string length [binary decode base64 " =="]] \
+	[string length [binary decode base64 "  =="]] \
+	[string length [binary decode base64 "   =="]] \
+} -result [lrepeat 4 0]
+test binary-73.34 {binary decode base64, (compatibility) unfulfilled base64 (single char) in non-strict mode} -body {
+    list \
+	[expr {[binary decode base64 a] eq [binary decode base64 ""]}] \
+	[expr {[binary decode base64 abcda] eq [binary decode base64 "abcd"]}]
+} -result [lrepeat 2 1]
+test binary-73.35 {binary decode base64, bad base64 in strict mode} -body {
+    set r {}
+    foreach c {a " a" "  a" "   a" "    a" abcda abcdabcda a= a== abcda= abcda==} {
+	lappend r \
+	    [catch {binary decode base64 $c}] \
+	    [catch {binary decode base64 -strict $c}]
+    }
+    set r
+} -result [lrepeat 11 0 1]
+test binary-73.36 {binary decode base64: check encoded & decoded equals original} -body {
+    set r {}
+    for {set i 0} {$i < 255 && [llength $r] < 20} {incr i} {
+	foreach c {1 2 3 4 5 6 7 8} {
+	    set c [string repeat [format %c $i] $c]
+	    if {[set a [binary decode base64 [set x [binary encode base64 $c]]]] ne $c} {
+		lappend r "encode & decode is wrong on string `$c` (encoded: $x): `$a` != `$c`"
+	    }
+	}
+    }
+    join $r \n
+} -result {}
 
 test binary-74.1 {binary encode uuencode} -body {
     binary encode uuencode
-- 
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