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<?php declare(strict_types=1); |
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namespace SmrTest\lib\DefaultGame; |
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use Smr\Database; |
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use Smr\DatabaseResult; |
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/** |
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* @covers \Smr\DatabaseResult |
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*/ |
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class DatabaseResultTest extends \PHPUnit\Framework\TestCase { |
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/** |
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* Create and run a trivial query that returns $num rows |
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*/ |
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private function runQuery(int $num) : DatabaseResult { |
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$db = Database::getInstance(); |
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// This query will look like (for increasing $num): |
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// SELECT 1 LIMIT 0 |
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// SELECT 1 LIMIT 1 |
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// SELECT 1 UNION SELECT 2 LIMIT 2 |
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// SELECT 1 UNION SELECT 2 UNION SELECT 3 LIMIT 3 |
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// We always include at least "SELECT 1" so that we have a valid |
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// query in the $num=0 case, and then add "LIMIT $num" to ensure |
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// that we get the requested number of rows. |
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$query = 'SELECT 1'; |
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for ($i = 2; $i <= $num; $i++) { |
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$query .= ' UNION SELECT ' . $i; |
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} |
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$query .= ' LIMIT ' . $num; |
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return $db->read($query); |
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} |
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public function test_record_one_row() { |
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self::assertSame([1 => '1'], $this->runQuery(1)->record()->getRow()); |
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} |
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public function test_record_too_many_rows() { |
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$result = $this->runQuery(2); |
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$this->expectException(\RuntimeException::class); |
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$this->expectExceptionMessage('One record required, but found 2'); |
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$result->record(); |
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} |
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public function test_record_too_few_rows() { |
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$result = $this->runQuery(0); |
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$this->expectException(\RuntimeException::class); |
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$this->expectExceptionMessage('One record required, but found 0'); |
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$result->record(); |
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} |
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public function test_hasRecord_no_rows() { |
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$result = $this->runQuery(0); |
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self::assertFalse($result->hasRecord()); |
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} |
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public function test_hasRecord_with_rows() { |
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$result = $this->runQuery(1); |
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self::assertTrue($result->hasRecord()); |
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} |
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public function test_getNumRecords() { |
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foreach ([0, 1, 2] as $numRecords) { |
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$result = $this->runQuery($numRecords); |
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self::assertSame($numRecords, $result->getNumRecords()); |
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} |
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} |
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public function test_records() { |
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$numRecords = 0; |
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$result = $this->runQuery(3); |
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foreach ($result->records() as $index => $record) { |
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$row = $index + 1; |
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self::assertSame([1 => (string)$row], $record->getRow()); |
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$numRecords++; |
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} |
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self::assertSame(3, $numRecords); |
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} |
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public function test_records_no_rows() { |
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$result = $this->runQuery(0); |
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self::assertSame([], iterator_to_array($result->records())); |
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} |
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} |
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smrealms /
smr
