Tests for Db\ResultSQLite3

lib/Db/ResultSQLite3.php

@@ -9,7 +9,29 @@ class ResultSQLite3 implements Result {
     protected $cur = null;
     protected $rows = 0;
 
-    public function __construct($result, $changes, $statement = null) {
+    // actual public methods
+
+    public function getSingle() {
+        $this->next();
+        if($this->valid()) {
+            $keys = array_keys($this->cur);
+            return $this->cur[array_shift($keys)];
+        }
+        return null;
+    }
+
+    public function get() {
+        $this->next();
+        return ($this->valid() ? $this->cur : null);
+    }
+
+    public function changes() {
+        return $this->rows;
+    }
+
+    // constructor/destructor
+
+    public function __construct($result, $changes = 0, $statement = null) {
         $this->st = $statement; //keeps the statement from being destroyed, invalidating the result set
         $this->set = $result;
         $this->rows = $changes;
@@ -20,6 +42,8 @@ class ResultSQLite3 implements Result {
         unset($this->set);
     }
 
+    // PHP iterator methods
+
     public function valid() {
         $this->cur = $this->set->fetchArray(\SQLITE3_ASSOC);
         return ($this->cur !== false);
@@ -43,22 +67,4 @@ class ResultSQLite3 implements Result {
         $this->cur = null;
         $this->set->reset();
     }
-
-    public function getSingle() {
-        $this->next();
-        if($this->valid()) {
-            $keys = array_keys($this->cur);
-            return $this->cur[array_shift($keys)];
-        }
-        return null;
-    }
-
-    public function get() {
-        $this->next();
-        return ($this->valid() ? $this->cur : null);
-    }
-
-    public function changes() {
-        return $this->rows;
-    }
 }

tests/Db/SQLite3/TestDbResultSQLite3.php

@@ -0,0 +1,76 @@
+<?php
+declare(strict_types=1);
+namespace JKingWeb\NewsSync;
+
+
+class TestDbResultSQLite3 extends \PHPUnit\Framework\TestCase {
+    use Test\Tools;
+
+    protected $c;
+
+    function setUp() {
+        $c = new \SQLite3(":memory:");
+        $c->enableExceptions(true);
+        $this->c = $c;
+    }
+
+    function tearDown() {
+        $this->c->close();
+        unset($this->c);
+    }
+
+    function testConstructResult() {
+        $set = $this->c->query("SELECT 1");
+        $this->assertInstanceOf(Db\ResultSQLite3::class, new Db\ResultSQLite3($set));
+    }
+
+    function testGetChangeCount() {
+        $this->c->query("CREATE TABLE test(col)");
+        $set = $this->c->query("INSERT INTO test(col) values(1)");
+        $rows = $this->c->changes();
+        $this->assertEquals($rows, (new Db\ResultSQLite3($set,$rows))->changes());
+    }
+
+    function testIterateOverResults() {
+        $set = $this->c->query("SELECT 1 as col union select 2 as col union select 3 as col");
+        $rows = [];
+        foreach(new Db\ResultSQLite3($set) as $row) {
+            $rows[] = $row['col'];
+        }
+        $this->assertEquals([1,2,3], $rows);
+    }
+
+    function testIterateOverResultsTwice() {
+        $set = $this->c->query("SELECT 1 as col union select 2 as col union select 3 as col");
+        $rows = [];
+        $test = new Db\ResultSQLite3($set);
+        foreach($test as $row) {
+            $rows[] = $row['col'];
+        }
+        foreach($test as $row) {
+            $rows[] = $row['col'];
+        }
+        $this->assertEquals([1,2,3,1,2,3], $rows);
+    }
+
+    function testGetSingleValues() {
+        $set = $this->c->query("SELECT 1867 as year union select 1970 as year union select 2112 as year");
+        $test = new Db\ResultSQLite3($set);
+        $this->assertEquals(1867, $test->getSingle());
+        $this->assertEquals(1970, $test->getSingle());
+        $this->assertEquals(2112, $test->getSingle());
+        $this->assertSame(null, $test->getSingle());
+    }
+
+    function testGetRows() {
+        $set = $this->c->query("SELECT '2112' as album, '2112' as track union select 'Clockwork Angels' as album, 'The Wreckers' as track");
+        $rows = [
+            ['album' => '2112',             'track' => '2112'],
+            ['album' => 'Clockwork Angels', 'track' => 'The Wreckers'],
+        ];
+        $test = new Db\ResultSQLite3($set);
+        $this->assertEquals($rows[0], $test->get());
+        $this->assertEquals($rows[1], $test->get());
+        $this->assertSame(null, $test->get());
+    }
+}

tests/phpunit.xml

@@ -27,4 +27,8 @@
     <file>User/TestAuthorization.php</file>
 </testsuite>
 
+<testsuite name="SQLite3 database driver">
+    <file>Db/SQLite3/TestDbResultSQLite3.php</file>
+</testsuite>
+
 </phpunit>