failure doesn't produce stacks if actual value is falsy

[nhamer]

https://github.com/substack/tape/blob/b66f8f80928bb82f0817407880a139ad118daf01/lib/results.js#L160

test('failureStacks', function(t) {
  t.equal(true, false); // returns a full stack
  t.equal(false, true); // no stack
  t.end();
});

[ljharb]

What do you mean by "stack" here? Error objects have stacks; not assertions.

[nhamer]

Sorry for the imprecision - I mean the output of the above test is:

TAP version 13

failureStacks

not ok 1 should be equal

operator: equal
expected: false
actual:   true
at: Test.<anonymous> (c:\myproj\test.js:3:5)
stack: |-
  Error: should be equal
      at Test.assert [as _assert] (c:\myproj\node_modules\tape\lib\test.js:212:54)
      at Test.bound [as _assert] (c:\myproj\node_modules\tape\lib\test.js:64:32)
      at Test.equal.Test.equals.Test.isEqual.Test.is.Test.strictEqual.Test.strictEquals (c:\myproj\node_modules\tape\lib\test.js:347:10)
      at Test.bound (c:\myproj\node_modules\tape\lib\test.js:64:32)
      at Test.<anonymous> (c:\myproj\test.js:3:5)
      at Test.bound [as _cb] (c:\myproj\node_modules\tape\lib\test.js:64:32)
      at Test.run (c:\myproj\node_modules\tape\lib\test.js:83:10)
      at Test.bound [as run] (c:\myproj\node_modules\tape\lib\test.js:64:32)
      at Immediate.next (c:\myproj\node_modules\tape\lib\results.js:71:15)
      at runCallback (timers.js:672:20)

...
not ok 2 should be equal

operator: equal
expected: true
actual:   false
at: Test.<anonymous> (c:\myproj\test.js:4:5)

...

1..2

tests 2

pass 0

fail 2