Tweaks to Feed tests

- Ensure Web server is up before running tests (skip otherwise)
- Place expected timestamps closer to assertions, to lessen chances of off-by-one failures

tests/Feed/TestFeed.php

@@ -7,13 +7,23 @@ Use Phake;
 class TestFeed extends \PHPUnit\Framework\TestCase {
     use Test\Tools;
 
-    protected $base = "http://localhost:8000/Feed/";
-
+    protected static $host = "http://localhost:8000/";
+    protected static $serverUp = true;
+    protected $base = "";
+    
     function time(string $t): string {
         return gmdate("D, d M Y H:i:s \G\M\T", strtotime($t));
     }
 
+    static function setUpBeforeClass() {
+        if(!@file_get_contents(self::$host."IsUp")) self::$serverUp = false;
+    }
+
     function setUp() {
+        if(!self::$serverUp) {
+            $this->markTestSkipped("Test Web server is not accepting requests");
+        }
+        $this->base = self::$host."Feed/";
         $this->clearData();
         Data::$conf = new Conf();
     }
@@ -32,44 +42,49 @@ class TestFeed extends \PHPUnit\Framework\TestCase {
     
     function testComputeNextFetchFrom304() {
         // if less than half an hour, check in 15 minutes
-        $exp = strtotime("now + 15 minutes");
         $t = strtotime("now");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 15 minutes");
         $this->assertTime($exp, $f->nextFetch);
         $t = strtotime("now - 29 minutes");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 15 minutes");
         $this->assertTime($exp, $f->nextFetch);
         // if less than an hour, check in 30 minutes
-        $exp = strtotime("now + 30 minutes");
         $t = strtotime("now - 30 minutes");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 30 minutes");
         $this->assertTime($exp, $f->nextFetch);
         $t = strtotime("now - 59 minutes");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 30 minutes");
         $this->assertTime($exp, $f->nextFetch);
         // if less than three hours, check in an hour
-        $exp = strtotime("now + 1 hour");
         $t = strtotime("now - 1 hour");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 1 hour");
         $this->assertTime($exp, $f->nextFetch);
         $t = strtotime("now - 2 hours 59 minutes");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 1 hour");
         $this->assertTime($exp, $f->nextFetch);
         // if more than 36 hours, check in 24 hours
-        $exp = strtotime("now + 1 day");
         $t = strtotime("now - 36 hours");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 1 day");
         $this->assertTime($exp, $f->nextFetch);
         $t = strtotime("now - 2 years");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 1 day");
         $this->assertTime($exp, $f->nextFetch);
         // otherwise check in three hours
-        $exp = strtotime("now + 3 hours");
         $t = strtotime("now - 3 hours");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 3 hours");
         $this->assertTime($exp, $f->nextFetch);
         $t = strtotime("now - 35 hours");
         $f = new Feed(null, $this->base."NextFetch/NotModified?t=$t", $this->dateTransform($t, "http"));
+        $exp = strtotime("now + 3 hours");
         $this->assertTime($exp, $f->nextFetch);
     }
 }

tests/docroot/Feed/NextFetch/NotModified.php

@@ -7,6 +7,6 @@ if(array_key_exists("t", $_GET)) {
 } else {
     return [
         'code'    => 304,
-        'cache'   => fasel,
+        'cache'   => false,
     ];
 }

tests/docroot/IsUp.php

@@ -0,0 +1,4 @@
+<?php return [
+    'code'    => 200,
+    'content' => "I'm up!",
+];