1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/prototype/flags/coercion-multiline.js b/js/src/tests/test262/built-ins/RegExp/prototype/flags/coercion-multiline.js
new file mode 100644
index 0000000000..976c94aa13
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/prototype/flags/coercion-multiline.js
@@ -0,0 +1,47 @@
+// Copyright (C) 2017 Aleksey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-get-regexp.prototype.flags
+description: Boolean coercion of the multiline property
+info: |
+  get RegExp.prototype.flags
+
+  ...
+  8. Let multiline be ToBoolean(? Get(R, "multiline")).
+  ...
+features: [Symbol]
+---*/
+
+var get = Object.getOwnPropertyDescriptor(RegExp.prototype, "flags").get;
+
+var r = {};
+
+r.multiline = undefined;
+assert.sameValue(get.call(r), "", "multiline: undefined");
+
+r.multiline = null;
+assert.sameValue(get.call(r), "", "multiline: null");
+
+r.multiline = NaN;
+assert.sameValue(get.call(r), "", "multiline: NaN");
+
+r.multiline = "";
+assert.sameValue(get.call(r), "", "multiline: the empty string");
+
+r.multiline = "string";
+assert.sameValue(get.call(r), "m", "multiline: string");
+
+r.multiline = 86;
+assert.sameValue(get.call(r), "m", "multiline: 86");
+
+r.multiline = Symbol();
+assert.sameValue(get.call(r), "m", "multiline: Symbol()");
+
+r.multiline = [];
+assert.sameValue(get.call(r), "m", "multiline: []");
+
+r.multiline = {};
+assert.sameValue(get.call(r), "m", "multiline: {}");
+
+reportCompare(0, 0);