1 files changed, 75 insertions, 0 deletions
diff --git a/tests/quicktester.inc b/tests/quicktester.inc
new file mode 100644
index 0000000..48ed6b5
--- /dev/null
+++ b/tests/quicktester.inc
@@ -0,0 +1,75 @@
+<?php
+ /*
+  Helper for simple tests to check return-value. Usage:
+
+  $tests = <<<TESTS
+   expected_return_value === expression
+   2                     === 1+1
+   4                     === 2*2
+   FALSE                 === @ fopen('non_existent_file')
+TESTS;
+  include( 'tests/quicktester.inc' );
+
+  Expect: OK
+
+  Remember to NOT put a trailing ; after a line!
+
+ */
+error_reporting(E_ALL);  
+$tests = explode("\n",$tests);
+$success = TRUE;
+foreach ($tests as $n=>$test)
+{
+	// ignore empty lines
+	if (!$test) continue;
+
+	// warn for trailing ;
+	if (substr(trim($test), -1, 1) === ';') {
+		echo "WARNING: trailing ';' found in test ".($n+1)."\n";
+		exit;
+	}
+
+	// try for operators
+	$operators = array('===', '~==');
+	$operator = NULL;
+	foreach ($operators as $a_operator) {
+		if (strpos($test, $a_operator)!== FALSE) {
+			$operator = $a_operator;
+			list($left,$right) = explode($operator, $test);
+			break;
+		}
+	}
+	if (!$operator) {
+		echo "WARNING: unknown operator in '$test' (1)\n";
+		exit;
+	}
+
+	$left  = eval("return ($left );");
+	$right = eval("return ($right);");
+	switch (@$operator) {
+		case '===': // exact match
+			$result = $left === $right;
+			break;
+		case '~==': // may differ after 12th significant number
+			if (   !is_float($left ) && !is_int($left )
+				|| !is_float($right) && !is_int($right)) {
+				$result = FALSE;
+				break;
+			}
+			$result = abs(($left-$right) / $left) < 1e-12;
+			break;
+		default:
+			echo "WARNING: unknown operator in '$test' (2)\n";
+			exit;
+	}
+
+	$success = $success && $result;
+	if (!$result) {
+		echo "\nAssert failed:\n";
+		echo "$test\n";
+		echo "Left:  ";var_dump($left );
+		echo "Right: ";var_dump($right);
+	}
+}
+if ($success) echo "OK";
+