--- /dev/null
+<?php
+/*
+ * This file is part of the Comparator package.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SebastianBergmann\Comparator;
+
+/**
+ * Compares scalar or NULL values for equality.
+ */
+class ScalarComparator extends Comparator
+{
+ /**
+ * Returns whether the comparator can compare two values.
+ *
+ * @param mixed $expected The first value to compare
+ * @param mixed $actual The second value to compare
+ * @return bool
+ * @since Method available since Release 3.6.0
+ */
+ public function accepts($expected, $actual)
+ {
+ return ((is_scalar($expected) xor null === $expected) &&
+ (is_scalar($actual) xor null === $actual))
+ // allow comparison between strings and objects featuring __toString()
+ || (is_string($expected) && is_object($actual) && method_exists($actual, '__toString'))
+ || (is_object($expected) && method_exists($expected, '__toString') && is_string($actual));
+ }
+
+ /**
+ * Asserts that two values are equal.
+ *
+ * @param mixed $expected First value to compare
+ * @param mixed $actual Second value to compare
+ * @param float $delta Allowed numerical distance between two values to consider them equal
+ * @param bool $canonicalize Arrays are sorted before comparison when set to true
+ * @param bool $ignoreCase Case is ignored when set to true
+ *
+ * @throws ComparisonFailure
+ */
+ public function assertEquals($expected, $actual, $delta = 0.0, $canonicalize = false, $ignoreCase = false)
+ {
+ $expectedToCompare = $expected;
+ $actualToCompare = $actual;
+
+ // always compare as strings to avoid strange behaviour
+ // otherwise 0 == 'Foobar'
+ if (is_string($expected) || is_string($actual)) {
+ $expectedToCompare = (string) $expectedToCompare;
+ $actualToCompare = (string) $actualToCompare;
+
+ if ($ignoreCase) {
+ $expectedToCompare = strtolower($expectedToCompare);
+ $actualToCompare = strtolower($actualToCompare);
+ }
+ }
+
+ if ($expectedToCompare != $actualToCompare) {
+ if (is_string($expected) && is_string($actual)) {
+ throw new ComparisonFailure(
+ $expected,
+ $actual,
+ $this->exporter->export($expected),
+ $this->exporter->export($actual),
+ false,
+ 'Failed asserting that two strings are equal.'
+ );
+ }
+
+ throw new ComparisonFailure(
+ $expected,
+ $actual,
+ // no diff is required
+ '',
+ '',
+ false,
+ sprintf(
+ 'Failed asserting that %s matches expected %s.',
+ $this->exporter->export($actual),
+ $this->exporter->export($expected)
+ )
+ );
+ }
+ }
+}