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assert.deepEqual is broken? #5907
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This happens due to this line, where typed arrays are converted to assert.deepEqual(new Float32Array([ 0 ]), new Float32Array([ 255 ])) // throws
assert.deepEqual(new Float32Array([ 0 ]), new Float32Array([ 256 ])) // passes, 256 becomes 0x00
assert.deepEqual(new Float32Array([ 0 ]), new Float32Array([ 257 ])) // throws Same with |
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addaleax
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Do not convert typed arrays to `Buffer` for deepEqual since their values may not be accurately represented by 8-bit ints. Instead perform binary comparison of underlying `ArrayBuffer`s, but only when the array types match. Never apply any kind of optimization for floating-point typed arrays since bit pattern equality is not the right kind of check for them. PR-URL: nodejs#5910 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Fixes: nodejs#5907
MylesBorins
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Apr 5, 2016
Do not convert typed arrays to `Buffer` for deepEqual since their values may not be accurately represented by 8-bit ints. Instead perform binary comparison of underlying `ArrayBuffer`s, but only when the array types match. Never apply any kind of optimization for floating-point typed arrays since bit pattern equality is not the right kind of check for them. PR-URL: #5910 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Fixes: #5907
addaleax
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Apr 11, 2016
Do not convert typed arrays to `Buffer` for deepEqual since their values may not be accurately represented by 8-bit ints. Instead perform binary comparison of underlying `ArrayBuffer`s, but only when the array types match. Never apply any kind of optimization for floating-point typed arrays since bit pattern equality is not the right kind of check for them. PR-URL: nodejs#5910 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Fixes: nodejs#5907
3 tasks
MylesBorins
pushed a commit
that referenced
this issue
Apr 11, 2016
Do not convert typed arrays to `Buffer` for deepEqual since their values may not be accurately represented by 8-bit ints. Instead perform binary comparison of underlying `ArrayBuffer`s, but only when the array types match. Never apply any kind of optimization for floating-point typed arrays since bit pattern equality is not the right kind of check for them. PR-URL: #5910 Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com> Fixes: #5907
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Problem:
Does not throw an exception, when comparing two Float32Array which have the small different values.
This works as expected.
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