32     forEach(function(fun) {  argument
33   assertTrue(isNaN(fun(NaN)));
34   assertTrue(isNaN(fun("abc")));
35   assertTrue(isNaN(fun({})));
36   assertEquals(fun(0), fun([]));
37   assertTrue(isNaN(fun([1, 1])));
38   assertEquals(fun(1.11), fun({ toString: function() { return "1.11"; } }));
39   assertEquals(fun(-3.1), fun({ toString: function() { return -3.1; } }));
40   assertEquals(fun(-1.1), fun({ valueOf: function() { return "-1.1"; } }));
41   assertEquals(fun(3.11), fun({ valueOf: function() { return 3.11; } }));
45 function test_id(fun, rev, value) {  argument
46   assertEqualsDelta(1, rev(fun(value))/value, 1E-7);
58 [Math.sinh, Math.asinh, Math.tanh, Math.atanh].forEach(function(fun) {  argument
59   assertEquals("-Infinity", String(1/fun(-0)));
60   assertEquals("Infinity", String(1/fun(0)));
64 [Math.sinh, Math.asinh].forEach(function(fun) {  argument
65   assertEquals("-Infinity", String(fun(-Infinity)));
66   assertEquals("Infinity", String(fun(Infinity)));
67   assertEquals("-Infinity", String(fun("-Infinity")));
68   assertEquals("Infinity", String(fun("Infinity")));