1 files changed, 123 insertions, 0 deletions
diff --git a/tests/units/FunctionTest.php b/tests/units/FunctionTest.php
new file mode 100644
index 00000000..1c5f971d
--- /dev/null
+++ b/tests/units/FunctionTest.php
@@ -0,0 +1,123 @@
+<?php
+
+require_once __DIR__.'/Base.php';
+
+class FunctionTest extends Base
+{
+    public function testArrayColumnSum()
+    {
+        $input = array(
+            array(
+                'my_column' => 123
+            ),
+            array(
+                'my_column' => 456.7
+            ),
+            array()
+        );
+
+        $this->assertSame(579.7, array_column_sum($input, 'my_column'));
+    }
+
+    public function testArrayColumnIndex()
+    {
+        $input = array(
+            array(
+                'k1' => 11,
+                'k2' => 22,
+            ),
+            array(
+                'k1' => 11,
+                'k2' => 55,
+            ),
+            array(
+                'k1' => 33,
+                'k2' => 44,
+            ),
+            array()
+        );
+
+        $expected = array(
+            11 => array(
+                array(
+                    'k1' => 11,
+                    'k2' => 22,
+                ),
+                array(
+                    'k1' => 11,
+                    'k2' => 55,
+                )
+            ),
+            33 => array(
+                array(
+                    'k1' => 33,
+                    'k2' => 44,
+                )
+            )
+        );
+
+        $this->assertSame($expected, array_column_index($input, 'k1'));
+    }
+
+    public function testArrayMergeRelation()
+    {
+        $relations = array(
+            88 => array(
+                'id' => 123,
+                'value' => 'test1',
+            ),
+            99 => array(
+                'id' => 456,
+                'value' => 'test2',
+            ),
+            55 => array()
+        );
+
+        $input = array(
+            array(),
+            array(
+                'task_id' => 88,
+                'title' => 'task1'
+            ),
+            array(
+                'task_id' => 99,
+                'title' => 'task2'
+            ),
+            array(
+                'task_id' => 11,
+                'title' => 'task3'
+            )
+        );
+
+        $expected = array(
+            array(
+                'my_relation' => array(),
+            ),
+            array(
+                'task_id' => 88,
+                'title' => 'task1',
+                'my_relation' => array(
+                    'id' => 123,
+                    'value' => 'test1',
+                ),
+            ),
+            array(
+                'task_id' => 99,
+                'title' => 'task2',
+                'my_relation' => array(
+                    'id' => 456,
+                    'value' => 'test2',
+                ),
+            ),
+            array(
+                'task_id' => 11,
+                'title' => 'task3',
+                'my_relation' => array(),
+            )
+        );
+
+        array_merge_relation($input, $relations, 'my_relation', 'task_id');
+
+        $this->assertSame($expected, $input);
+    }
+}