Add extra array assignment tests

tests/ArrayAssignmentTest.php

@@ -460,4 +460,37 @@ public function testAdditionDifferentType()
  $this->assertEquals('array<int, string|int>', (string) $context->vars_in_scope['$a']);
  $this->assertEquals('array<int, string|int>', (string) $context->vars_in_scope['$b']);
  }
+
+ public function testPreset1DArrayTypeWithVarKeys()
+ {
+ $stmts = self::$parser->parse('<?php
+ /** @var array<string, array<int, string>> */
+ $a = [];
+
+ $foo = "foo";
+
+ $a[$foo][] = "bat";
+ ');
+
+ $file_checker = new \Psalm\Checker\FileChecker('somefile.php', $stmts);
+ $context = new Context('somefile.php');
+ $file_checker->check(true, true, $context);
+ }
+
+ public function testPreset2DArrayTypeWithVarKeys()
+ {
+ $stmts = self::$parser->parse('<?php
+ /** @var array<string, array<string, array<int, string>>> */
+ $b = [];
+
+ $foo = "foo";
+ $bar = "bar";
+
+ $b[$foo][$bar][] = "bat";
+ ');
+
+ $file_checker = new \Psalm\Checker\FileChecker('somefile.php', $stmts);
+ $context = new Context('somefile.php');
+ $file_checker->check(true, true, $context);
+ }
 }