| Tests for ES6 class syntax declarations | 
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 | On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | 
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 | PASS constructorCallCount is 0 | 
 | PASS A.someStaticMethod() is staticMethodValue | 
 | PASS A.someStaticGetter is getterValue | 
 | PASS setterValue = undefined; A.someStaticSetter = 123; setterValue is 123 | 
 | PASS (new A).someInstanceMethod() is instanceMethodValue | 
 | PASS constructorCallCount is 1 | 
 | PASS (new A).someGetter is getterValue | 
 | PASS constructorCallCount is 2 | 
 | PASS (new A).someGetter is getterValue | 
 | PASS setterValue = undefined; (new A).someSetter = 789; setterValue is 789 | 
 | PASS (new A).__proto__ is A.prototype | 
 | PASS A.prototype.constructor is A | 
 | PASS class threw exception SyntaxError: Unexpected end of input. | 
 | PASS class [ threw exception SyntaxError: Unexpected token [. | 
 | PASS class { threw exception SyntaxError: Unexpected token {. | 
 | PASS class X { threw exception SyntaxError: Unexpected end of input. | 
 | PASS class X { ( } threw exception SyntaxError: Unexpected token (. | 
 | PASS class X {} did not throw exception. | 
 | PASS class X { constructor() {} constructor() {} } threw exception SyntaxError: A class may only have one constructor. | 
 | PASS class X { get constructor() {} } threw exception SyntaxError: Class constructor may not be an accessor. | 
 | PASS class X { set constructor() {} } threw exception SyntaxError: Class constructor may not be an accessor. | 
 | PASS class X { constructor() {} static constructor() { return staticMethodValue; } } did not throw exception. | 
 | PASS class X { constructor() {} static constructor() { return staticMethodValue; } }; X.constructor() is staticMethodValue | 
 | PASS class X { constructor() {} static prototype() {} } threw exception SyntaxError: Classes may not have static property named prototype. | 
 | PASS class X { constructor() {} static get prototype() {} } threw exception SyntaxError: Classes may not have static property named prototype. | 
 | PASS class X { constructor() {} static set prototype() {} } threw exception SyntaxError: Classes may not have static property named prototype. | 
 | PASS class X { constructor() {} prototype() { return instanceMethodValue; } } did not throw exception. | 
 | PASS class X { constructor() {} prototype() { return instanceMethodValue; } }; (new X).prototype() is instanceMethodValue | 
 | PASS class X { constructor() {} set foo(a) {} } did not throw exception. | 
 | PASS class X { constructor() {} set foo({x, y}) {} } did not throw exception. | 
 | PASS class X { constructor() {} set foo() {} } threw exception SyntaxError: Setter must have exactly one formal parameter.. | 
 | PASS class X { constructor() {} set foo(a, b) {} } threw exception SyntaxError: Setter must have exactly one formal parameter.. | 
 | PASS class X { constructor() {} get foo() {} } did not throw exception. | 
 | PASS class X { constructor() {} get foo(x) {} } threw exception SyntaxError: Getter must not have any formal parameters.. | 
 | PASS class X { constructor() {} get foo({x, y}) {} } threw exception SyntaxError: Getter must not have any formal parameters.. | 
 | PASS successfullyParsed is true | 
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 | TEST COMPLETE |