1 files changed, 92 insertions, 0 deletions
diff --git a/ext/standard/tests/math/cos_basic.phpt b/ext/standard/tests/math/cos_basic.phpt
new file mode 100644
index 0000000..f0cfa66
--- /dev/null
+++ b/ext/standard/tests/math/cos_basic.phpt
@@ -0,0 +1,92 @@
+--TEST--
+Test return type and value for expected input cos()
+--INI--
+precision = 14
+--FILE--
+<?php
+/* 
+ * proto float cos(float number)
+ * Function is implemented in ext/standard/math.c
+*/ 
+
+$file_path = dirname(__FILE__);
+require($file_path."/allowed_rounding_error.inc");
+
+
+// Use known values to test
+
+$sixty = M_PI / 3.0;
+$thirty = M_PI / 6.0;
+$ninety = M_PI /2.0;
+$oneeighty = M_PI;
+$twoseventy = M_PI * 1.5;
+$threesixty = M_PI * 2.0;
+
+
+echo "cos 30 = ";
+var_dump(cos($thirty));
+if (allowed_rounding_error(cos($thirty),0.86602540378444)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "cos 60 = ";
+var_dump(cos($sixty));
+if (allowed_rounding_error(cos($sixty),0.5)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "cos 90 = ";
+var_dump(cos($ninety));
+if (allowed_rounding_error(cos($ninety),0.0)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "cos 180 = ";
+var_dump(cos($oneeighty));
+if (allowed_rounding_error(cos($oneeighty),-1.0)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "cos 270 = ";
+var_dump(cos($twoseventy));
+if (allowed_rounding_error(cos($twoseventy),0.0)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+
+echo "cos 360 = ";
+var_dump(cos($threesixty));
+if (allowed_rounding_error(cos($threesixty),1.0)) {
+	echo "Pass\n";
+}
+else {
+	echo "Fail\n";
+}
+?>
+--EXPECTF--
+cos 30 = float(%f)
+Pass
+cos 60 = float(%f)
+Pass
+cos 90 = float(%f)
+Pass
+cos 180 = float(%f)
+Pass
+cos 270 = float(%f)
+Pass
+cos 360 = float(%f)
+Pass