Memory-allocationSamplingProbability-01.js

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// Test that setting Debugger.Memory.prototype.allocationSamplingProbability to

// a bad number throws.

load(libdir + "asserts.js");

const root = newGlobal({newCompartment: true});

const dbg = new Debugger();

const wrappedRoot = dbg.addDebuggee(root);

var mem = dbg.memory;

// Out of range, negative

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = -Number.MAX_VALUE,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = -1,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = -Number.MIN_VALUE,

                       TypeError);

// In range

mem.allocationSamplingProbability = -0.0;

mem.allocationSamplingProbability = 0.0;

mem.allocationSamplingProbability = Number.MIN_VALUE;

mem.allocationSamplingProbability = 1 / 3;

mem.allocationSamplingProbability = .5;

mem.allocationSamplingProbability = 2 / 3;

mem.allocationSamplingProbability = 1 - Math.pow(2, -53);

mem.allocationSamplingProbability = 1;

// Out of range, positive

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = 1 + Number.EPSILON,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = 2,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = Number.MAX_VALUE,

                       TypeError);

// Out of range, non-finite

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = -Infinity,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = Infinity,

                       TypeError);

assertThrowsInstanceOf(() => mem.allocationSamplingProbability = NaN,

                       TypeError);