Refactoring DBA-mocking tests

- Reducing DB-dependencies
- Creating DB-cache mocks
- Creating DB-lock mocks
- Switching to mocked dependencies for Cache/Lock/App

tests/Util/DbaCacheMockTrait.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Friendica\Test\Util;
+
+trait DbaCacheMockTrait
+{
+	use DBAMockTrait;
+	use DateTimeFormatMockTrait;
+
+	protected function mockDelete($key, $return = true, $times = null)
+	{
+		$this->mockDBADelete('cache', ['k' => $key], $return, $times);
+	}
+
+	protected function mockGet($key, $return = null, $time = null, $times = null)
+	{
+		if ($time === null) {
+			$time = time();
+		}
+
+		$value = @serialize($return);
+
+		$this->mockSelectFirst('cache', ['v'], ['`k` = ? AND (`expires` >= ? OR `expires` = -1)', $key, $time], ['v' => $value], $times);
+		$this->mockIsResult(['v' => $value], isset($return), $times);
+	}
+
+	protected function mockSet($key, $value, $ttl = Cache::FIVE_MINUTES, $time = null, $return = true, $times = null)
+	{
+		if ($time === null) {
+			$time = time();
+		}
+
+		if ($ttl > 0) {
+			$this->mockUtc('now + ' . $ttl . 'seconds', $time + $ttl, $times);
+			$fields = [
+				'v' => serialize($value),
+				'expires' => $time + $ttl,
+				'updated' => $time
+			];
+		} else {
+			$fields = [
+				'v' => serialize($value),
+				'expires' => -1,
+				'updated' => $time
+			];
+		}
+
+		$this->mockDBAUpdate('cache', $fields, ['k' => $key], true, $return, $times);
+	}
+
+	protected function mockClear($outdated = true, $return = true, $times = null)
+	{
+		if ($outdated) {
+			$this->mockDBADelete('cache', ['`expires` < NOW()'], $return, $times);
+		} else {
+			$this->mockDBADelete('cache', ['`k` IS NOT NULL '], $return, $times);
+		}
+	}
+
+	protected function mockGetAllKeys($prefix = null, $return = [], $time = null, $times = null)
+	{
+		if ($time === null) {
+			$time = time();
+		}
+
+		if (empty($prefix)) {
+			$where = ['`expires` >= ?', $time];
+		} else {
+			$where = ['`expires` >= ? AND `k` LIKE CONCAT(?, \'%\')', $time, $prefix];
+		}
+
+		$this->mockSelect('cache', ['k'], $where, $return, $times);
+		$this->mockFetchLoop($return, $times);
+		$this->mockDbaClose(true, $times);
+	}
+}