Add prose tests and remove POC test

Author: jmikola

tests/bson-binary-vector/poc-valid-001.phpt

@@ -0,0 +1,27 @@
+--TEST--
+Binary vector: Encoding PackedBit vector with non-zero, padded bits fails
+--DESCRIPTION--
+Binary vector prose test #1
+https://github.com/mongodb/specifications/blob/master/source/bson-binary-vector/tests/README.md#prose-tests
+--FILE--
+<?php
+
+require_once __DIR__ . '/../utils/basic.inc';
+
+// PackedBit vector with padding:7 and non-zero bits is invalid
+
+
+/* PHPC does not allow constructing a PackedBit vector with non-zero, padded
+ * bits. As a result, the corresponding decoding test (i.e. prose test #2)
+ * cannot be implemented. */
+echo throws(function() {
+    var_dump(new MongoDB\BSON\Binary("\x10\x07\xff", MongoDB\BSON\Binary::TYPE_VECTOR));
+}, 'MongoDB\Driver\Exception\InvalidArgumentException'), "\n";
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+OK: Got MongoDB\Driver\Exception\InvalidArgumentException
+Binary vector data is invalid
+===DONE===

tests/bson-binary-vector/prose_test-001.phpt

@@ -0,0 +1,28 @@
+--TEST--
+Binary vector: PackedBit vector comparisons
+--DESCRIPTION--
+Binary vector prose test #3
+https://github.com/mongodb/specifications/blob/master/source/bson-binary-vector/tests/README.md#prose-tests
+--FILE--
+<?php
+
+require_once __DIR__ . '/../utils/basic.inc';
+
+/* Although PHPC does not allow constructing a vector with non-zero, padded
+ * bits, we can still test comparisons between two valid vector objects
+ * constructed from raw data and a PHP array, respectively. */
+$b1 = new MongoDB\BSON\Binary("\x10\x07\x80", MongoDB\BSON\Binary::TYPE_VECTOR);
+
+// PackedBit vector with padding:7 and all-zero bits (constructed from PHP array)
+$b2 = MongoDB\BSON\Binary::fromVector([1], MongoDB\BSON\VectorType::PackedBit);
+
+var_dump($b1 == $b2);
+var_dump($b1->toArray() === $b2->toArray());
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+bool(true)
+bool(true)
+===DONE===