support/testing: php: new runtime test

Signed-off-by: Julien Olivain <ju.o@free.fr>

DEVELOPERS

@@ -1991,6 +1991,8 @@ F:	support/testing/tests/package/test_patch.py
 F:	support/testing/tests/package/test_patch/
 F:	support/testing/tests/package/test_pciutils.py
 F:	support/testing/tests/package/test_perftest.py
+F:	support/testing/tests/package/test_php.py
+F:	support/testing/tests/package/test_php/
 F:	support/testing/tests/package/test_pigz.py
 F:	support/testing/tests/package/test_postgresql.py
 F:	support/testing/tests/package/test_pppd.py

support/testing/tests/package/test_php.py

@@ -0,0 +1,61 @@
+import os
+
+import infra.basetest
+
+
+class TestPhp(infra.basetest.BRTest):
+    rootfs_overlay = \
+        infra.filepath("tests/package/test_php/rootfs-overlay")
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        f"""
+        BR2_PACKAGE_APACHE=y
+        BR2_PACKAGE_LIBCURL=y
+        BR2_PACKAGE_LIBCURL_CURL=y
+        BR2_PACKAGE_PHP=y
+        BR2_PACKAGE_PHP_SAPI_APACHE=y
+        BR2_PACKAGE_PHP_SAPI_CLI=y
+        BR2_ROOTFS_OVERLAY="{rootfs_overlay}"
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        cpio_file = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(arch="armv7",
+                           kernel="builtin",
+                           options=["-initrd", cpio_file])
+        self.emulator.login()
+
+        # We check the php program can execute.
+        self.assertRunOk("php --version")
+
+        # We check can print a message from the command line.
+        msg = "Hello Buildroot!"
+        php_code = f"echo '{msg}' . PHP_EOL;"
+        cmd = f"php -r \"{php_code}\""
+        out, ret = self.emulator.run(cmd)
+        self.assertEqual(ret, 0)
+        self.assertEqual(out[0], msg)
+
+        # We check we can exit with a specific code.
+        exit_code = 123
+        php_code = f"exit({exit_code});"
+        cmd = f"php -r \"{php_code}\""
+        out, ret = self.emulator.run(cmd)
+        self.assertEqual(ret, exit_code)
+        self.assertEqual(len(out), 0)
+
+        # We check we can run a slightly more complex program.
+        self.assertRunOk("php mandel.php")
+
+        # We check the apache php module is also working.
+        # The php script reads the "message" POST variable,
+        # then write its content back in upper case.
+        cmd = "curl"
+        cmd += " -H 'Content-type: multipart/form-data'"
+        cmd += " -X POST"
+        cmd += f" -F message='{msg}'"
+        cmd += " http://127.0.0.1/script.php"
+        out, ret = self.emulator.run(cmd)
+        self.assertEqual(ret, 0)
+        self.assertEqual("\n".join(out), msg.upper())

support/testing/tests/package/test_php/rootfs-overlay/etc/apache2/httpd.conf

@@ -0,0 +1,58 @@
+# This file is a minimal Apache config to run PHP scripts for tests.
+# It was essentially written from the default package config with:
+# - all the comments removed,
+# - unneeded modules and config sections removed,
+# - "ServerName localhost:80" added to remove startup warning,
+# - "AddType application/x-httpd-php .php" added to enable php.
+
+ServerRoot "/usr"
+Listen 80
+
+LoadModule authz_core_module modules/mod_authz_core.so
+LoadModule mime_module modules/mod_mime.so
+LoadModule log_config_module modules/mod_log_config.so
+LoadModule unixd_module modules/mod_unixd.so
+LoadModule php_module modules/libphp.so
+
+<IfModule unixd_module>
+User daemon
+Group daemon
+</IfModule>
+
+ServerAdmin you@example.com
+ServerName localhost:80
+
+<Directory />
+    AllowOverride none
+    Require all denied
+</Directory>
+
+DocumentRoot "/usr/htdocs"
+<Directory "/usr/htdocs">
+    Options Indexes FollowSymLinks
+    AllowOverride None
+    Require all granted
+</Directory>
+
+<Files ".ht*">
+    Require all denied
+</Files>
+
+ErrorLog "/var/logs/error_log"
+LogLevel warn
+
+<IfModule log_config_module>
+    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
+    LogFormat "%h %l %u %t \"%r\" %>s %b" common
+
+    <IfModule logio_module>
+      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
+    </IfModule>
+
+    CustomLog "/var/logs/access_log" common
+</IfModule>
+
+<IfModule mime_module>
+    TypesConfig /etc/apache2/mime.types
+    AddType application/x-httpd-php .php
+</IfModule>

support/testing/tests/package/test_php/rootfs-overlay/root/mandel.php

@@ -0,0 +1,19 @@
+<?php
+$points = ",.:-;!/>)|&IH%*Z";
+for ($y = -15; $y <= 15; $y++) {
+  for ($x = 1; $x <= 84; $x++) {
+    $i = 0;
+    $r = 0;
+    for ($k = 0; $k <= 111; $k++) {
+      $j = ($r*$r) - ($i*$i) - 2 + ($x/25);
+      $i = 2 * $r * $i + ($y/10);
+      if (($j*$j + $i*$i) >= 11) {
+        break;
+      }
+      $r = $j;
+    }
+    echo $points[$k & 0xF];
+  }
+  echo PHP_EOL;
+}
+?>

support/testing/tests/package/test_php/rootfs-overlay/usr/htdocs/script.php

@@ -0,0 +1 @@
+<?php echo strtoupper($_POST["message"]) . PHP_EOL; ?>