Fix tests, add tests

Author: arnaud-lb

tests/001.phpt

@@ -13,8 +13,11 @@ memprof_disable();
 
 var_dump(memprof_enabled());
 
---EXPECT--
+--EXPECTF--
 bool(false)
+
+Warning: Calling memprof_enable() manually may not work as expected because of PHP optimizations. Prefer using MEMPROF_PROFILE=1 as environment variable, GET, or POST in %s
 bool(true)
-bool(false)
 
+Warning: Memprof profiling was enabled, but no profile was dumped. Did you forget to call one of memprof_dump_callgrind(), memprof_dump_pprof(), or memprof_dump_array() ? %s
+bool(false)

tests/002.phpt

@@ -22,8 +22,10 @@ $b = Eater::eat();
 
 var_dump(memprof_dump_array());
 
---EXPECT--
+--EXPECTF--
 string(9) "Exception"
+
+Warning: Calling memprof_enable() manually may not work as expected because of PHP optimizations. Prefer using MEMPROF_PROFILE=1 as environment variable, GET, or POST in %s
 array(6) {
   ["memory_size"]=>
   int(0)

tests/003.phpt

@@ -12,7 +12,8 @@ $b = Eater::eat();
 
 memprof_dump_callgrind(STDOUT);
 
---EXPECT--
+--EXPECTF--
+Warning: Calling memprof_enable() manually may not work as expected because of PHP optimizations. Prefer using MEMPROF_PROFILE=1 as environment variable, GET, or POST in %s
 version: 1
 cmd: unknown
 positions: line

tests/004.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Enable with environment variable
+--ENV--
+MEMPROF_PROFILE=1
+--FILE--
+<?php
+var_dump(memprof_enabled());
+memprof_dump_array();
+--EXPECT--
+bool(true)

tests/005.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Enable with query string parameter
+--GET--
+MEMPROF_PROFILE=1
+--FILE--
+<?php
+var_dump(memprof_enabled());
+memprof_dump_array();
+--EXPECT--
+bool(true)

tests/006.phpt

@@ -0,0 +1,10 @@
+--TEST--
+Enable with post field
+--POST--
+MEMPROF_PROFILE=1
+--FILE--
+<?php
+var_dump(memprof_enabled());
+memprof_dump_array();
+--EXPECT--
+bool(true)