Implement should().notBeConstantValueOf(x)

third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html

Index: third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html
diff --git a/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html b/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html
index 1624a684aa348ba6af402eb916c3a40e9fca5874..8824423bfcc92ac44f18cd62f9df5a6a0aaba26f 100644
--- a/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html
+++ b/third_party/WebKit/LayoutTests/webaudio/unit-tests/audit.html
@@ -46,6 +46,7 @@
 
       should(2.3).beCloseTo(2, { threshold: 0.3 });
       should([1, 1, 1]).beConstantValueOf(1);
+      should([1, 0, 1]).notBeConstantValueOf(1);
       should([1, 1, 1]).beEqualToArray([1, 1, 1]);
       should([1, 1, 1, 1, 2, 2, 3, 3, 3])
         .containValues([1, 2, 3], 'one, two, three');