harness test: arrayContains.js

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/test/harness/arrayContains.js b/test/harness/arrayContains.js
new file mode 100644
index 000000000..3f83e3087
--- /dev/null
+++ b/test/harness/arrayContains.js
@@ -0,0 +1,24 @@
+// Copyright (c) 2017 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+    Assert that the contents of an array contains another array as a slice or sub-array
+includes: [arrayContains.js]
+---*/
+
+const willMatch = [0, 1, 2];
+
+assert(arrayContains([0, 1, 2, 3], willMatch));
+assert(arrayContains([null, 0, 1, 2, 3], willMatch));
+assert(arrayContains([undefined, 0, 1, 2, 3], willMatch));
+assert(arrayContains([false, 0, 1, 2, 3], willMatch));
+assert(arrayContains([NaN, 0, 1, 2, 3], willMatch));
+
+const willNotMatch = [1, 0, 2];
+
+assert(!arrayContains([1, /* intentional hole */, 2], willNotMatch), '[1, /* intentional hole */, 2], willNotMatch)');
+assert(!arrayContains([1, null, 2], willNotMatch), '[1, null, 2], willNotMatch)');
+assert(!arrayContains([1, undefined, 2], willNotMatch), '[1, undefined, 2], willNotMatch)');
+assert(!arrayContains([1, false, 2], willNotMatch), '[1, false, 2], willNotMatch)');
+assert(!arrayContains([1, NaN, 2], willNotMatch), '[1, NaN, 2], willNotMatch)');