begin tests in core

core/util.inc.php

@@ -221,6 +221,8 @@ function parse_shorthand_int(string $limit): int {
  * @return string
  */
 function to_shorthand_int(int $int): string {
+	assert($int >= 0);
+
 	if($int >= pow(1024, 3)) {
 		return sprintf("%.1fGB", $int / pow(1024, 3));
 	}

core/util.test.php

@@ -0,0 +1,43 @@
+<?php
+require_once "util.inc.php";
+
+class CoreUtilIO extends \PHPUnit\Framework\TestCase {
+	public function test_html_escape() {
+		$this->assertEquals(
+			html_escape("Foo & <waffles>"),
+			"Foo &amp; &lt;waffles&gt;"
+		);
+
+		$this->assertEquals(
+			html_unescape("Foo &amp; &lt;waffles&gt;"),
+			"Foo & <waffles>"
+		);
+
+		$x = "Foo &amp; &lt;waffles&gt;";
+		$this->assertEquals(html_escape(html_unescape($x)), $x);
+	}
+
+	public function test_int_escape() {
+		$this->assertEquals(int_escape(""), 0);
+		$this->assertEquals(int_escape("1"), 1);
+		$this->assertEquals(int_escape("-1"), -1);
+		$this->assertEquals(int_escape("-1.5"), -1);
+	}
+
+	public function test_clamp() {
+		$this->assertEquals(clamp(0, 5, 10), 5);
+		$this->assertEquals(clamp(5, 5, 10), 5);
+		$this->assertEquals(clamp(7, 5, 10), 7);
+		$this->assertEquals(clamp(10, 5, 10), 10);
+		$this->assertEquals(clamp(15, 5, 10), 10);
+	}
+
+	public function test_shorthand_int() {
+		$this->assertEquals(to_shorthand_int(1231231231), "1.1GB");
+
+		$this->assertEquals(parse_shorthand_int("foo"), -1);
+		$this->assertEquals(parse_shorthand_int("32M"), 33554432);
+		$this->assertEquals(parse_shorthand_int("43.4KB"), 44441);
+		$this->assertEquals(parse_shorthand_int("1231231231"), 1231231231);
+	}
+}

tests/phpunit.xml

@@ -1,6 +1,9 @@
 <phpunit bootstrap="../tests/bootstrap.php" colors="true">
 	<testsuites>
-		<testsuite name="shimmie">
+		<testsuite name="core">
+			<directory suffix="test.php">../core/</directory>
+		</testsuite>
+		<testsuite name="ext">
 			<directory suffix="test.php">../ext/</directory>
 		</testsuite>
 	</testsuites>