1 files changed, 78 insertions, 0 deletions
diff --git a/ext/standard/tests/math/log1p_basic.phpt b/ext/standard/tests/math/log1p_basic.phpt
new file mode 100644
index 0000000..b289418
--- /dev/null
+++ b/ext/standard/tests/math/log1p_basic.phpt
@@ -0,0 +1,78 @@
+--TEST--
+Test log1p() - basic function test log1p()
+--INI--
+precision=14
+--FILE--
+<?php
+/* Prototype  : float log1p  ( float $arg  )
+ * Description: Returns log(1 + number), computed in a way that is accurate even 
+ *				when the value of number is close to zero
+ * Source code: ext/standard/math.c
+ */
+
+echo "*** Testing log1p() : basic functionality ***\n";
+
+$values = array(23,
+				-23,
+				2.345e1,
+				-2.345e1,
+				0x17,
+				027,
+				"23",
+				"23.45",
+				"2.345e1",				
+				null,
+				true,
+				false);	
+
+echo "\n LOG1p tests\n";
+
+foreach($values as $value) {
+	echo "\n-- log1p $value --\n";
+	var_dump(log1p($value));
+};	
+
+
+?>
+===Done===
+--EXPECTF--
+*** Testing log1p() : basic functionality ***
+
+ LOG1p tests
+
+-- log1p 23 --
+float(3.1780538303479)
+
+-- log1p -23 --
+float(NAN)
+
+-- log1p 23.45 --
+float(3.1966302159209)
+
+-- log1p -23.45 --
+float(NAN)
+
+-- log1p 23 --
+float(3.1780538303479)
+
+-- log1p 23 --
+float(3.1780538303479)
+
+-- log1p 23 --
+float(3.1780538303479)
+
+-- log1p 23.45 --
+float(3.1966302159209)
+
+-- log1p 2.345e1 --
+float(3.1966302159209)
+
+-- log1p  --
+float(0)
+
+-- log1p 1 --
+float(0.69314718055995)
+
+-- log1p  --
+float(0)
+===Done===