Added test cases for printf builtin

builtin_printf.cpp

@@ -52,7 +52,7 @@
 
 #include "common.h"
 
-// This file has bee imported from source code of printf command in GNU Coreutils version 6.9
+// This file has been imported from source code of printf command in GNU Coreutils version 6.9
 
 /* The official name of this program (e.g., no `g' prefix).  */
 #define PROGRAM_NAME "printf"
@@ -312,7 +312,7 @@ static void print_direc (const wchar_t *start, size_t length, wchar_t conversion
 
     switch (conversion)
       {
-      case L'd': case L'i': case L'o': case L'u': case L'x': case L'X':
+    case L'd': case L'i':
 	length_modifier = PRIdMAX;
 	length_modifier_len = sizeof PRIdMAX - 2;
 	break;
@@ -322,7 +322,7 @@ static void print_direc (const wchar_t *start, size_t length, wchar_t conversion
 	length_modifier = L"L";
 	length_modifier_len = 1;
 	break;
-      case L's':
+      case L's': case L'u':
 	length_modifier = L"l";
 	length_modifier_len = 1;
 	break;

tests/printf.in

@@ -0,0 +1,19 @@
+printf "Hello %d %i %f %F %g %G\n" 1 2 3 4 5 6
+
+printf "%x %X %o %u\n" 10 11 8 -1
+printf "%a %A\n" 14 15
+
+printf "%c %s\n" a hello
+printf "%e %E\n" 5 6
+
+printf "%20d\n" 50
+printf "%-20d%d\n" 5 10
+
+printf "%*d\n" 10 100
+
+printf "%%\"\\\n" 
+printf "%s\b%s\n" x y
+printf "abc\rdef\n"
+printf "Msg1\fMsg2\n"
+printf "foo\vbar\vbaz\n"
+printf "\111 \x50" # \u0051 \U00000052

tests/printf.out

@@ -0,0 +1,13 @@
+Hello 1 2 3.000000 4.000000 5 6
+a B 10 18446744073709551615
+0xep+0 0XFP+0
+a hello
+5.000000e+00 6.000000E+00
+                  50
+5                   10
+       100
+%"\nxy
+abc
def
+Msg1Msg2
+foobarbaz
+I P

tests/printf.status

@@ -0,0 +1 @@
+0