golang/go
x/tools/go/analysis/passes/modernize: add testingsetenv analyzer
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#77,735 opened on 2026/02/22
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説明
Proposal Details
Add a new analyzer that replaces manual environment variable save/restore with t.Setenv (Go 1.17+).
// Before
defer os.Setenv("GOOS", os.Getenv("GOOS"))
os.Setenv("GOOS", f[0])
// After
t.Setenv("GOOS", f[0])
Conditions
- Pattern: defer os.Setenv(key, os.Getenv(key)) followed by os.Setenv(key, value)
- defer must precede os.Setenv (defer args are evaluated immediately)
- Within test function, before any t.Parallel() call
- Go 1.17+
Similar to testingcontext analyzer.