[SCM] master: Add test for Environ.

[scox@sourceware.org]

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- Log -----------------------------------------------------------------
commit b43f15763a7f3a1a2582e3bb48e3e5e6d980e0ea
Author: Stan Cox <scox@redhat.com>
Date:   Thu May 8 11:52:01 2008 -0400

    Add test for Environ.
    
    * Environ.java (Environ(long)): New.
    (getEnvHash): New.
    * cni/Environ.cxx (getEnvironment(long)): New.
    (putEnvironment): Fix off by one error.
    * TestEnviron.java: New.

-----------------------------------------------------------------------

Summary of changes:
 frysk-sys/frysk/sys/ChangeLog                      |    8 +++
 frysk-sys/frysk/sys/Environ.java                   |   20 +++++++-
 .../sys/{cni/Environ.cxx => TestEnviron.java}      |   55 ++++++++++----------
 frysk-sys/frysk/sys/cni/Environ.cxx                |   12 ++++-
 4 files changed, 65 insertions(+), 30 deletions(-)
 copy frysk-sys/frysk/sys/{cni/Environ.cxx => TestEnviron.java} (68%)

First 500 lines of diff:
diff --git a/frysk-sys/frysk/sys/ChangeLog b/frysk-sys/frysk/sys/ChangeLog
index 7478218..8de64b6 100644
--- a/frysk-sys/frysk/sys/ChangeLog
+++ b/frysk-sys/frysk/sys/ChangeLog
@@ -1,3 +1,11 @@
+2008-05-08  Stan Cox  <scox@redhat.com>
+
+	* Environ.java (Environ(long)): New.
+	(getEnvHash): New.
+	* cni/Environ.cxx (getEnvironment(long)): New.
+	(putEnvironment): Fix off by one error.
+	* TestEnviron.java: New.
+
 2008-05-07  Andrew Cagney  <cagney@redhat.com>
 
 	* jni/AuditLibs.cxx: Include jni.hxx; fully qualify jnixx::env.
diff --git a/frysk-sys/frysk/sys/Environ.java b/frysk-sys/frysk/sys/Environ.java
index 328eab1..ffbec15 100644
--- a/frysk-sys/frysk/sys/Environ.java
+++ b/frysk-sys/frysk/sys/Environ.java
@@ -1,6 +1,6 @@
 // This file is part of the program FRYSK.
 //
-// Copyright 2007 Red Hat Inc.
+// Copyright 2008 Red Hat Inc.
 //
 // FRYSK is free software; you can redistribute it and/or modify it
 // under the terms of the GNU General Public License as published by
@@ -58,6 +58,23 @@ public class Environ
     }
     
     /**
+     * Construct an environment hash given an existing environ.  Used for testing
+     */
+    Environ (long environ)
+    {
+	env = new HashMap();   
+	getEnvironment(environ);
+    }
+    
+    /**
+     * Get the environment hash.  Used for testing
+     * @return the array of environment values.
+     */
+    HashMap getEnvHash() {
+	return env;
+    }
+    
+    /**
      * Get an environment variable.
      * @param name is the environment variable name.
      * @return the value of the variable.
@@ -106,5 +123,6 @@ public class Environ
     }
 
     native void getEnvironment();
+    native void getEnvironment(long environ);
     native long putEnvironment(Object[] envs);
 }
diff --git a/frysk-sys/frysk/sys/cni/Environ.cxx b/frysk-sys/frysk/sys/TestEnviron.java
similarity index 68%
copy from frysk-sys/frysk/sys/cni/Environ.cxx
copy to frysk-sys/frysk/sys/TestEnviron.java
index 9772dfd..4a5e050 100644
--- a/frysk-sys/frysk/sys/cni/Environ.cxx
+++ b/frysk-sys/frysk/sys/TestEnviron.java
@@ -37,37 +37,36 @@
 // version and license this file solely under the GPL without
 // exception.
 
-#include <gcj/cni.h>
+package frysk.sys;
 
-#include "frysk/sys/Environ.h"
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Set;
 
+import frysk.junit.TestCase;
 
-void
-frysk::sys::Environ::getEnvironment()
-{
-  extern char **environ;
-  int env_idx;
+/**
+ * Test environ support
+ */
+public class TestEnviron extends TestCase {
 
-  for (env_idx = 0; environ[env_idx]; env_idx++) 
-    frysk::sys::Environ::addEnviron (JvNewStringUTF (environ[env_idx]));
-}
-
-char **new_environ;
-
-jlong
-frysk::sys::Environ::putEnvironment(jobjectArray envs)
-{
-  jstring* env_member = (jstring*)elements(envs);
-  int envs_length = JvGetArrayLength(envs);
-  new_environ = (char**)JvMalloc(sizeof(void*) * envs_length);
-  for (int i = 0; i < envs_length; i++) 
-    {
-      int sym_len = env_member[i]->length ();
-      char *sym = (char*)JvMalloc(sym_len + 1);
-      JvGetStringUTFRegion (env_member[i], 0, sym_len, sym);
-      sym[sym_len] = '\0';
-      new_environ[i] = sym;
+    public void testEnviron() {
+        Environ env1 = new Environ();
+        // Grab the environment hash table
+	HashMap env1Hash = env1.getEnvHash();
+	Set env1Keys = env1Hash.keySet();
+	// Load the environment from the environment hash table
+	long environ = env1.putEnviron();
+	// Create a new environment hash table from that environment
+	Environ env2 = new Environ(environ);
+	HashMap env2Hash = env2.getEnvHash();
+	
+	// Ensure that both environment hash tables match
+        Iterator iterator = env1Keys.iterator();
+        while(iterator.hasNext()){
+            String key = (String) iterator.next();
+            assertTrue ("env value test fails for key=" + key, 
+        	    ((String)env1Hash.get(key)).compareTo((String)env2Hash.get(key)) == 0);
+        }
     }
-  new_environ[envs_length] = NULL;
-  return (jlong)new_environ;
 }
diff --git a/frysk-sys/frysk/sys/cni/Environ.cxx b/frysk-sys/frysk/sys/cni/Environ.cxx
index 9772dfd..839a861 100644
--- a/frysk-sys/frysk/sys/cni/Environ.cxx
+++ b/frysk-sys/frysk/sys/cni/Environ.cxx
@@ -52,6 +52,16 @@ frysk::sys::Environ::getEnvironment()
     frysk::sys::Environ::addEnviron (JvNewStringUTF (environ[env_idx]));
 }
 
+void
+frysk::sys::Environ::getEnvironment(jlong environ_p)
+{
+  int env_idx;
+  char ** environ = (char **) environ_p;
+
+  for (env_idx = 0; environ[env_idx]; env_idx++) 
+    frysk::sys::Environ::addEnviron (JvNewStringUTF (environ[env_idx]));
+}
+
 char **new_environ;
 
 jlong
@@ -59,7 +69,7 @@ frysk::sys::Environ::putEnvironment(jobjectArray envs)
 {
   jstring* env_member = (jstring*)elements(envs);
   int envs_length = JvGetArrayLength(envs);
-  new_environ = (char**)JvMalloc(sizeof(void*) * envs_length);
+  new_environ = (char**)JvMalloc(sizeof(void*) * (envs_length + 1));
   for (int i = 0; i < envs_length; i++) 
     {
       int sym_len = env_member[i]->length ();


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