Add some more test cases for BCMath

Closes GH-7851.

Author: peter279k

ext/bcmath/tests/bcadd.phpt

@@ -8,9 +8,13 @@ bcmath.scale=0
 <?php
 echo bcadd("1", "2"),"\n";
 echo bcadd("-1", "5", 4),"\n";
+echo bcadd("-1", "-5", 4),"\n";
+echo bcadd("1", "-5", 4),"\n";
 echo bcadd("1928372132132819737213", "8728932001983192837219398127471", 2),"\n";
 ?>
 --EXPECT--
 3
 4.0000
+-6.0000
+-4.0000
 8728932003911564969352217864684.00

ext/bcmath/tests/bcadd_variation001.phpt

@@ -7,10 +7,16 @@ bcmath.scale=5
 --FILE--
 <?php
 echo bcadd("2.2", "4.3", "2")."\n";
+echo bcadd("2.2", "4.3", 2)."\n";
 echo bcadd("2.2", "-7.3", "1")."\n";
-echo bcadd("-4.27", "7.3");
+echo bcadd("2.2", "-7.3", 1)."\n";
+echo bcadd("-4.27", "7.3")."\n";
+echo bcadd("-4.27", "-7.3");
 ?>
 --EXPECT--
 6.50
+6.50
+-5.1
 -5.1
 3.03000
+-11.57000

ext/bcmath/tests/bccomp_variation002.phpt

@@ -8,9 +8,15 @@ bcmath.scale=0
 <?php
 echo bccomp("-2", "-2")."\n";
 echo bccomp("-2", "2", "1")."\n";
-echo bccomp("-2.29", "-2.3", "2");
+echo bccomp("-2.29", "-2.3", "2")."\n";
+echo bccomp("-2.29", "2.3", "2")."\n";
+echo bccomp("2.29", "-2.3", "2")."\n";
+echo bccomp("-2.29", "-2.3", "1");
 ?>
 --EXPECT--
 0
 -1
 1
+-1
+1
+1