# Description
This PR changes the range contains logic to take the step into account.
```nushell
# before
2 in 1..3.. # true
# now
2 in 1..3.. # false
```
---
I encountered another issue while adding tests. Due to floating point
precision, `2.1 in 1..1.1..3` will return `false`. The floating point
error is even bigger than `f64::EPSILON` (`0.09999999999999876` vs
`2.220446049250313e-16`). This issue disappears with bigger numbers.
I tried a different algorithm (checking if the estimated number of steps
is close enough to any integer) but the results are still pretty bad:
```rust
let n_steps = (value - self.start) / self.step; // 14.999999999999988
(n_steps - n_steps.round()).abs() < f64::EPSILON // returns false
```
Maybe it can be shipped like this, the REPL already has floating point
errors (`1.1 - 1` returns `0.10000000000000009`). Or maybe there's a way
to fix this that I didn't think of. I'm open to ideas! But in any case
performing this kind of checks on a range of floats seems more niche
than doing it on a range of ints.
# User-Facing Changes
Code that depended on this behavior to check if a number is between
`start` and `end` will potentially return a different value.
# Tests + Formatting
# After Submitting
This PR should close#7147
# Description
Merged src/tests into /tests to produce a single binary.
# User-Facing Changes
No user facing changes
# Tests + Formatting
Moved tests. Tollkit check pr pass.
# After Submitting
---------
Co-authored-by: Ian Manske <ian.manske@pm.me>
