test: use t.Setenv and t.TempDir
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Juneezee
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This commit replaces: 1. `os.Setenv` with `t.Setenv` 2. `os.MkdirTemp` with `t.TempDir` With `t.Setenv`, the environment variable is automatically restored to its original value when the test and all its subtests complete. The directory created by `t.TempDir` is automatically removed when the test and all its subtests complete. Reference: https://pkg.go.dev/testing#T.Setenv Reference: https://pkg.go.dev/testing#T.TempDir Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
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What this PR does / why we need it:
This commit replaces:
1.
os.Setenvwitht.Setenv2.
os.MkdirTempwitht.TempDirWith
t.Setenv, the environment variable is automatically restored to its original value when the test and all its subtests complete.The directory created by
t.TempDiris automatically removed when the test and all its subtests complete.Reference: https://pkg.go.dev/testing#T.Setenv
Reference: https://pkg.go.dev/testing#T.TempDir
Which issue(s) this PR fixes:
Special notes for your reviewer: