all_asserts

A crate for multiple types of asserts that don't exists in the standard library

Rationale

There are several kinds of problems that I had faced while writing tests, especially when writing comparator tests. The output from the existing macros, were providing vague outputs while debugging which made me write this crate. I had created an RFC, but neverthless it was rejected as there were not enough use cases. I am not too sure about others, but I find myself writing multiple tests that make use of these asserts.

Importing and using

Add these lines to your rust application:

extern crate all_asserts;
use all_asserts::asserts;

And now you can use the asserts wherever you like! On Panic you should get something like this (the example is from assert_lt!):

thread 'main' panicked at 'assertion failed: `(left <= right)`
  left: `100`,
 right: `200`', src/main.rs:79:5

Isn't that much better than what the current macros provide? Well, I'll leave you to decide!

Usage of the macros

The name of the assert pretty much tells you everything:

• assert_gt!(a, b) -> Will panic if a is not greater than b
• assert_ge!(a, b) -> Will panic if a is not greater than or equal to b
• assert_lt!(a, b) -> Will panic if a is not less than b
• assert_le!(a, b) -> Will panic if a is not greater than or equal to b

Further enhancements

• Provide better output for arrays instead of printing the length
• Provide better output for strings instead of printing the length

Building

Simply run:

$ git clone https://github.com/sntdevco/all_asserts.git
$ cd all_asserts
$ cargo build

And for testing:

$ cargo test

Contributing

Your welcome to!

"No man is an island!"

And I always stick to that belief! Please help me out in better formatting the output as mentioned in the Further Enhancements section. If you find an issue, go ahead a create one! (All doubts, questions, ideas are welcome)