diff -r 000000000000 -r 6474c204b198 nsprpub/pr/tests/env.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nsprpub/pr/tests/env.c	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,190 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** File:        env.c
+** Description: Testing environment variable operations
+**
+*/
+#include "prenv.h"
+#include "plgetopt.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+PRIntn  debug = 0;
+PRIntn  verbose = 0;
+PRBool  failedAlready = PR_FALSE;
+
+#define  ENVNAME    "NSPR_ENVIRONMENT_TEST_VARIABLE"
+#define  ENVVALUE   "The expected result"
+#define  ENVBUFSIZE 256
+
+char    *envBuf; /* buffer pointer. We leak memory here on purpose! */
+
+static char * NewBuffer( size_t size )
+{
+    char *buf = malloc( size );
+    if ( NULL == buf ) {
+        printf("env: NewBuffer() failed\n");
+        exit(1);
+    }
+    return(buf);
+} /* end NewBuffer() */
+
+int main(int argc, char **argv)
+{
+    char    *value;
+    PRStatus    rc;
+
+    {   /* Get command line options */
+        PLOptStatus os;
+        PLOptState *opt = PL_CreateOptState(argc, argv, "vd");
+
+	    while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
+        {
+		    if (PL_OPT_BAD == os) continue;
+            switch (opt->option)
+            {
+            case 'd':  /* debug */
+                debug = 1;
+                break;
+            case 'v':  /* verbose */
+                verbose = 1;
+                break;
+             default:
+                break;
+            }
+        }
+	    PL_DestroyOptState(opt);
+    } /* end block "Get command line options" */
+
+#if 0 
+    {
+        /*
+        ** This uses Windows native environment manipulation
+        ** as an experiment. Note the separation of namespace!
+        */
+        BOOL rv;
+        DWORD   size;
+        rv = SetEnvironmentVariable( ENVNAME, ENVVALUE );
+        if ( rv == 0 )  {
+            if (debug) printf("env: Shit! SetEnvironmentVariable() failed\n");
+            failedAlready = PR_TRUE;
+        }
+        if (verbose) printf("env: SetEnvironmentVariable() worked\n");
+
+        size = GetEnvironmentVariable( ENVNAME, envBuf, ENVBUFSIZE );    
+        if ( size == 0 )  {
+            if (debug) printf("env: Shit! GetEnvironmentVariable() failed. Found: %s\n", envBuf );
+            failedAlready = PR_TRUE;
+        }
+        if (verbose) printf("env: GetEnvironmentVariable() worked. Found: %s\n", envBuf);
+
+        value = PR_GetEnv( ENVNAME );
+        if ( (NULL == value ) || (strcmp( value, ENVVALUE)))  {
+            if (debug) printf( "env: PR_GetEnv() failed retrieving WinNative. Found: %s\n", value);
+            failedAlready = PR_TRUE;
+        }
+        if (verbose) printf("env: PR_GetEnv() worked. Found: %s\n", value);
+    }
+#endif
+
+    /* set an environment variable, read it back */
+    envBuf = NewBuffer( ENVBUFSIZE );
+    sprintf( envBuf, ENVNAME "=" ENVVALUE );
+    rc = PR_SetEnv( envBuf );
+    if ( PR_FAILURE == rc )  {
+        if (debug) printf( "env: PR_SetEnv() failed setting\n");
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf("env: PR_SetEnv() worked.\n");
+    }
+
+    value = PR_GetEnv( ENVNAME );
+    if ( (NULL == value ) || (strcmp( value, ENVVALUE)))  {
+        if (debug) printf( "env: PR_GetEnv() Failed after setting\n" );
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf("env: PR_GetEnv() worked after setting it. Found: %s\n", value );
+    }
+
+/* ---------------------------------------------------------------------- */
+    /* un-set the variable, using RAW name... should not work */
+    envBuf = NewBuffer( ENVBUFSIZE );
+    sprintf( envBuf, ENVNAME );
+    rc = PR_SetEnv( envBuf );
+    if ( PR_FAILURE == rc )  {
+        if (verbose) printf( "env: PR_SetEnv() not un-set using RAW name. Good!\n");
+    } else {
+        if (debug) printf("env: PR_SetEnv() un-set using RAW name. Bad!\n" );
+        failedAlready = PR_TRUE;
+    }
+
+    value = PR_GetEnv( ENVNAME );
+    if ( NULL == value ) {
+        if (debug) printf("env: PR_GetEnv() after un-set using RAW name. Bad!\n" );
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf( "env: PR_GetEnv() after RAW un-set found: %s\n", value );
+    }
+    
+/* ---------------------------------------------------------------------- */
+    /* set it again ... */
+    envBuf = NewBuffer( ENVBUFSIZE );
+    sprintf( envBuf, ENVNAME "=" ENVVALUE );
+    rc = PR_SetEnv( envBuf );
+    if ( PR_FAILURE == rc )  {
+        if (debug) printf( "env: PR_SetEnv() failed setting the second time.\n");
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf("env: PR_SetEnv() worked.\n");
+    }
+
+    /* un-set the variable using the form name= */
+    envBuf = NewBuffer( ENVBUFSIZE );
+    sprintf( envBuf, ENVNAME "=" );
+    rc = PR_SetEnv( envBuf );
+    if ( PR_FAILURE == rc )  {
+        if (debug) printf( "env: PR_SetEnv() failed un-setting using name=\n");
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf("env: PR_SetEnv() un-set using name= worked\n" );
+    }
+
+    value = PR_GetEnv( ENVNAME );
+    if (( NULL == value ) || ( 0x00 == *value )) {
+        if (verbose) printf("env: PR_GetEnv() after un-set using name= worked\n" );
+    } else {
+        if (debug) printf( "env: PR_GetEnv() after un-set using name=. Found: %s\n", value );
+        failedAlready = PR_TRUE;
+    }
+/* ---------------------------------------------------------------------- */
+    /* un-set the variable using the form name= */
+    envBuf = NewBuffer( ENVBUFSIZE );
+    sprintf( envBuf, ENVNAME "999=" );
+    rc = PR_SetEnv( envBuf );
+    if ( PR_FAILURE == rc )  {
+        if (debug) printf( "env: PR_SetEnv() failed un-setting using name=\n");
+        failedAlready = PR_TRUE;
+    } else {
+        if (verbose) printf("env: PR_SetEnv() un-set using name= worked\n" );
+    }
+
+    value = PR_GetEnv( ENVNAME "999" );
+    if (( NULL == value ) || ( 0x00 == *value )) {
+        if (verbose) printf("env: PR_GetEnv() after un-set using name= worked\n" );
+    } else {
+        if (debug) printf( "env: PR_GetEnv() after un-set using name=. Found: %s\n", value );
+        failedAlready = PR_TRUE;
+    }
+
+/* ---------------------------------------------------------------------- */
+    if (debug || verbose) printf("\n%s\n", (failedAlready)? "FAILED" : "PASSED" );
+    return( (failedAlready)? 1 : 0 );
+}  /* main() */
+
+/* env.c */