chore: Increase test coverage.

[nstdio]

No description provided.

[codecov-commenter]

Codecov Report

Merging #47 (a3bfa92) into main (1ccc937) will increase coverage by 1.74%.
The diff coverage is 76.19%.

@@             Coverage Diff              @@
##               main      #47      +/-   ##
============================================
+ Coverage     84.30%   86.05%   +1.74%     
- Complexity      502      516      +14     
============================================
  Files            44       44              
  Lines          1523     1527       +4     
  Branches        138      137       -1     
============================================
+ Hits           1284     1314      +30     
+ Misses          194      173      -21     
+ Partials         45       40       -5     

Impacted Files	Coverage Δ
...main/java/io/github/nstdio/http/ext/DiskCache.java	88.13% <60.00%> (-1.34%)	⬇️
...c/main/java/io/github/nstdio/http/ext/IOUtils.java	87.50% <66.66%> (-2.50%)	⬇️
...java/io/github/nstdio/http/ext/PathSubscriber.java	86.20% <75.00%> (+3.44%)	⬆️
.../io/github/nstdio/http/ext/CachingInterceptor.java	92.30% <100.00%> (+2.72%)	⬆️
.../java/io/github/nstdio/http/ext/FutureHandler.java	80.00% <100.00%> (+2.22%)	⬆️
...java/io/github/nstdio/http/ext/RequestContext.java	100.00% <100.00%> (+15.38%)	⬆️
...in/java/io/github/nstdio/http/ext/LruMultimap.java	80.95% <0.00%> (+3.17%)	⬆️
... and 6 more

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