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diff --git a/test/language/expressions/coalesce/short-circuit-number-empty-string.js b/test/language/expressions/coalesce/short-circuit-number-empty-string.js
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+// Copyright (C) 2019 Leo Balter. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: >
+ Short circuit if the CoalesceExpressionHead is not undefined or null (the empty string)
+esid: sec-conditional-operator
+info: |
+ ConditionalExpression :
+ ShortCircuitExpression
+ ShortCircuitExpression ? AssignmentExpression : AssignmentExpression
+
+ ShortCircuitExpression :
+ LogicalORExpression
+ CoalesceExpression
+
+ CoalesceExpression :
+ CoalesceExpressionHead ?? BitwiseORExpression
+
+ CoalesceExpressionHead :
+ CoalesceExpression
+ BitwiseORExpression
+
+ Runtime Semantics: Evaluation
+
+ CoalesceExpression:CoalesceExpressionHead??BitwiseORExpression
+
+ 1. Let lref be the result of evaluating CoalesceExpressionHead.
+ 2. Let lval be ? GetValue(lref).
+ 3. If lval is undefined or null,
+ a. Let rref be the result of evaluating BitwiseORExpression.
+ b. Return ? GetValue(rref).
+ 4. Otherwise, return lval.
+features: [coalesce-expression]
+---*/
+
+var x;
+var str = '';
+
+x = undefined;
+x = str ?? 1;
+assert.sameValue(x, str, 'str ?? 1');
+
+x = undefined;
+x = str ?? null;
+assert.sameValue(x, str, 'str ?? null');
+
+x = undefined;
+x = str ?? undefined;
+assert.sameValue(x, str, 'str ?? undefined');
+
+x = undefined;
+x = str ?? null ?? undefined;
+assert.sameValue(x, str, 'str ?? null ?? undefined');
+
+x = undefined;
+x = str ?? undefined ?? null;
+assert.sameValue(x, str, 'str ?? undefined ?? null');
+
+x = undefined;
+x = str ?? null ?? null;
+assert.sameValue(x, str, 'str ?? null ?? null');
+
+x = undefined;
+x = str ?? undefined ?? undefined;
+assert.sameValue(x, str, 'str ?? null ?? null');
+
+x = undefined;
+x = null ?? str ?? null;
+assert.sameValue(x, str, 'null ?? str ?? null');
+
+x = undefined;
+x = null ?? str ?? undefined;
+assert.sameValue(x, str, 'null ?? str ?? undefined');
+
+x = undefined;
+x = undefined ?? str ?? null;
+assert.sameValue(x, str, 'undefined ?? str ?? null');
+
+x = undefined;
+x = undefined ?? str ?? undefined;
+assert.sameValue(x, str, 'undefined ?? str ?? undefined');