internal/featuretests: add simple HTTPProxy fixtures

[jpeach]

Add some simple helpers to generate HTTPProxy test fixtures. This
helps reduce some boilerplate in setting up test cases.

Signed-off-by: James Peach jpeach@vmware.com

[jpeach]

@stevesloka @youngnick Let me know what you think of this approach. We can remove a bit more boilerplate by adding more fluent helpers and extending to other types.

[codecov]

Codecov Report

Merging #2519 into master will increase coverage by 0.08%.
The diff coverage is 91.17%.

@@            Coverage Diff             @@
##           master    #2519      +/-   ##
==========================================
+ Coverage   76.97%   77.05%   +0.08%     
==========================================
  Files          68       70       +2     
  Lines        5707     5732      +25     
==========================================
+ Hits         4393     4417      +24     
- Misses       1218     1219       +1     
  Partials       96       96              

Impacted Files	Coverage Δ
internal/featuretests/kubernetes.go	100.00% <ø> (+11.76%)	⬆️
internal/fixture/httpproxy.go	86.95% <86.95%> (ø)
internal/fixture/meta.go	100.00% <100.00%> (ø)

[stevesloka]

I think this is fine. We might also need a .WithNamespace() or something to allow different namespaces, but obviously can come when needed.

[jpeach]

I think this is fine. We might also need a .WithNamespace() or something to allow different namespaces, but obviously can come when needed.

.WithName accepts namespace/name syntax to set the namespace, but you are right, we can add a new namespace setter too if it's convenient.

[youngnick]

LGTM, I really like this, it will let us remove the package-specific fixtures.

[jpeach]

FWIW the Travis checks passed but the GitHub status wasn't updated.