Add StrictDate::on_or_after for date >= date ignoring time

CHANGELOG.md

@@ -1,5 +1,9 @@
 ### Unreleased
 
+### v0.1.4 (2018-04-30)
+
+* Add StrictDate::on_or_after for validating date >= date ignoring any time component
+
 ### v0.1.3 (2018-02-22)
 
 * Extract the basic ValidNumber class for validating minimum

src/Validation/StrictDate.php

@@ -16,25 +16,65 @@ class StrictDate
      * Validate that value of one field is a date after the value of another
      *
      * @param \ArrayAccess $validation
-     * @param string $from_field
-     * @param string $to_field
+     * @param string       $from_field
+     * @param string       $to_field
      *
      * @return bool
      */
     public static function date_after(\ArrayAccess $validation, $from_field, $to_field)
+    {
+        if ( ! $dates = static::get_valid_date_pair($validation, $from_field, $to_field)) {
+            // Return true if either value is empty or invalid, this will be picked up by other rules
+            return TRUE;
+        }
+
+        list($from, $to) = $dates;
+
+        return ($to > $from);
+    }
+
+    /**
+     * Validate that value of one field is a date on or after value of another (>= ignoring time)
+     *
+     * @param \ArrayAccess $validation
+     * @param string       $from_field
+     * @param string       $to_field
+     *
+     * @return bool
+     */
+    public static function date_on_or_after(\ArrayAccess $validation, $from_field, $to_field)
+    {
+        if ( ! $dates = static::get_valid_date_pair($validation, $from_field, $to_field)) {
+            // Return true if either value is empty or invalid, this will be picked up by other rules
+            return TRUE;
+        }
+
+        list($from, $to) = $dates;
+
+        return ($to->format('Y-m-d') >= $from->format('Y-m-d'));
+    }
+
+    /**
+     * @param \ArrayAccess $validation
+     * @param string       $from_field
+     * @param string       $to_field
+     *
+     * @return \DateTimeImmutable[]
+     */
+    protected static function get_valid_date_pair(\ArrayAccess $validation, $from_field, $to_field)
     {
         $from = $validation[$from_field];
         $to   = $validation[$to_field];
 
         // Return true if either value is empty or invalid, this will be picked up by other rules
         if ($from instanceof InvalidUserDateTime OR ! $from instanceof \DateTimeImmutable) {
-            return TRUE;
+            return NULL;
         }
         if ($to instanceof InvalidUserDateTime OR ! $to instanceof \DateTimeImmutable) {
-            return TRUE;
+            return NULL;
         }
 
-        return ($to > $from);
+        return [$from, $to];
     }
 
     /**
@@ -107,6 +147,7 @@ public static function rule($rulename)
     {
         switch ($rulename) {
             case 'date_after':
+            case 'date_on_or_after':
             case 'date_immutable':
             case 'datetime_immutable':
             case 'iso_date':

test/unit/Validation/StrictDateTest.php

@@ -71,7 +71,7 @@ public function test_it_validates_date_immutable_instance($value, $expect)
         $this->assertSame($expect, StrictDate::date_immutable($value));
     }
 
-    public function provider_date_after_date()
+    public function provider_date_before_after_invalid_inputs()
     {
         return [
             [['from' => NULL, 'to' => NULL], 'from', 'to', TRUE],
@@ -89,6 +89,28 @@ public function provider_date_after_date()
                 'to',
                 TRUE
             ],
+        ];
+    }
+
+    /**
+     * @dataProvider provider_date_before_after_invalid_inputs
+     */
+    public function test_date_compare_funcs_validate_invalid_input($data, $from_field, $to_field)
+    {
+        // This is so that an invalid date just says "invalid date" rather than also "must be after"
+        $data = new \ArrayObject($data);
+        $this->assertTrue(StrictDate::date_after($data, $from_field, $to_field), 'date_after');
+        $this->assertTrue(
+            StrictDate::date_on_or_after($data, $from_field, $to_field),
+            'date_on_or_after'
+        );
+    }
+
+    public function provider_date_after_date()
+    {
+        return [
+            // Invalid inputs all true as they should be caught by other rules
+            // Simple > the first one
             [
                 ['a' => new \DateTimeImmutable, 'b' => new \DateTimeImmutable('-5 mins')],
                 'a',
@@ -105,16 +127,47 @@ public function provider_date_after_date()
     }
 
     /**
-     * @dataProvider provider_date_after_date
+     * @testWith ["", "-5 mins", false]
+     *           ["-5 mins", "", true]
      */
-    public function test_it_validates_date_after_date($data, $from_field, $to_field, $expect)
+    public function test_it_validates_date_after_date($from, $to, $expect)
     {
         $this->assertSame(
             $expect,
             StrictDate::date_after(
-                new \ArrayObject($data),
-                $from_field,
-                $to_field
+                new \ArrayObject(
+                    [
+                        'from' => new \DateTimeImmutable($from),
+                        'to'   => new \DateTimeImmutable($to)
+                    ]
+                ),
+                'from',
+                'to'
+            )
+        );
+    }
+
+    /**
+     * @testWith ["2017-01-05 00:00:00", "2017-01-04 23:59:59", false]
+     *           ["2017-01-04 10:00:00", "2017-01-04 23:59:59", true]
+     *           ["2017-01-04 00:00:00", "2017-01-04 00:00:00", true]
+     *           ["2017-01-04 10:00:00", "2017-01-04 08:00:00", true]
+     *           ["2017-05-06 10:00:00", "2018-12-30 00:00:00", true]
+     *
+     */
+    public function test_it_validates_date_on_or_after_date($from, $to, $expect)
+    {
+        $this->assertSame(
+            $expect,
+            StrictDate::date_on_or_after(
+                new \ArrayObject(
+                    [
+                        'from' => new \DateTimeImmutable($from),
+                        'to'   => new \DateTimeImmutable($to)
+                    ]
+                ),
+                'from',
+                'to'
             )
         );
     }