Following #757, improves the script for generating scenario test cases
with:
- A requirements file
- Support for downloading packse scenarios from GitHub dynamically
- Running rustfmt on the generated test file
- Updating snapshots / running tests
As mentioned in #746, instead of just installing the scenario root we
will unpack the root dependencies into the install command to allow
better coverage of direct user requests with scenarios.
I added display of the package tree provided by each scenario.
Use a mustache template for iterative replacements.
Adds tests using packse test scenarios! Uses `test.pypi.org` as a
backing index.
Tests are generated by a simple Python script. Requires
https://github.com/zanieb/packse/pull/49.
This opens us to a slight attack surface, as we cannot force use of
`test.pypi.org` only and someone could register these package names on
the real `pypi.org` index with malicious content. I could publish these
packages there too.
Zanie Blue