Prevent size related exceptions

[Borewit]

Prevent exceptions:

• Parsing very small "file" sizes, fixes inconsistent behavior for small size buffer #306
• Parse files with unknown "file" size, like a stream required to fix failing unit tests Add ASF unit test #291.

[Borewit]

I am not really happy with way the maybeless flag is now provided to tokenizer.peekBuffer in:

await tokenizer.peekBuffer(buffer, 0, bytesRead, tokenizer.position, true); //maybeless = true

I have created an issue: strtok3#124

[sindresorhus]

I have no idea why this is failing:

✖ odd file sizes t.notThrowsAsync() must be called with a function or promise

FileType.fromBuffer(buffer) is a Promise.

[Borewit]

I am happy I am not the only one anymore who thinks the behavior of the async tests methods are weird. Passing a promise should be sufficient.

test.js is full of redundant await statements.

I think in general async tests methods & await statements could be avoided by treating the test method async if the return type of the test method is a promise.

[sindresorhus]

Ok, I know why it happens. When the file type cannot be detected, .fromBuffer() incorrectly returns undefined instead of Promise<undefined>.

[Borewit]

Aij

[Borewit]

It is missing async declaration:

file-type/core.js

Line 23 in e90035a

function fromBuffer(input) {

[Borewit]

I will create separate issue / PR for that. I am curious if the test cases are then working with a single await as well.

... issue created: #309

[Borewit]

And indeed, with the async fix, the async-test- methods do behave as expected 😁

[Borewit]

Force pushed a rebase on PR #310.