test: use T.TempDir to create temporary test directory
#4256
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This commit replaces `ioutil.TempDir` with `t.TempDir` in tests. The
directory created by `t.TempDir` is automatically removed when the test
and all its subtests complete.
Prior to this commit, temporary directory created using `ioutil.TempDir`
needs to be removed manually by calling `os.RemoveAll`, which is omitted
in some tests. The error handling boilerplate e.g.
defer func() {
if err := os.RemoveAll(dir); err != nil {
t.Fatal(err)
}
}
is also tedious, but `t.TempDir` handles this for us nicely.
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
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Codecov Report
@@ Coverage Diff @@
## master #4256 +/- ##
==========================================
+ Coverage 55.13% 55.14% +0.01%
==========================================
Files 395 395
Lines 50117 50117
==========================================
+ Hits 27630 27638 +8
+ Misses 20111 20098 -13
- Partials 2376 2381 +5
Continue to review full report at Codecov.
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jannotti
approved these changes
Jul 14, 2022
algorandskiy
approved these changes
Jul 14, 2022
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Summary
A testing cleanup.
This pull request replaces
ioutil.TempDirwitht.TempDir. We can use theT.TempDirfunction from thetestingpackage to create temporary directory. The directory created byT.TempDiris automatically removed when the test and all its subtests complete.This saves us at least 2 lines (error check, and cleanup) on every instance, or in some cases adds cleanup that we forgot.
Reference: https://pkg.go.dev/testing#T.TempDir
Test Plan