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nolint_test.go
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nolint_test.go
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package processors
import (
"fmt"
"go/token"
"path/filepath"
"testing"
"github.com/golangci/golangci-lint/pkg/lint/lintersdb"
"github.com/golang/mock/gomock"
"github.com/stretchr/testify/assert"
"github.com/golangci/golangci-lint/pkg/lint/astcache"
"github.com/golangci/golangci-lint/pkg/logutils"
"github.com/golangci/golangci-lint/pkg/result"
)
func newNolintFileIssue(line int, fromLinter string) result.Issue {
return result.Issue{
Pos: token.Position{
Filename: filepath.Join("testdata", "nolint.go"),
Line: line,
},
FromLinter: fromLinter,
}
}
func newNolint2FileIssue(line int) result.Issue {
i := newNolintFileIssue(line, "errcheck")
i.Pos.Filename = filepath.Join("testdata", "nolint2.go")
return i
}
func newTestNolintProcessor(log logutils.Log) *Nolint {
cache := astcache.LoadFromFilenames(log,
filepath.Join("testdata", "nolint.go"),
filepath.Join("testdata", "nolint2.go"),
filepath.Join("testdata", "nolint_bad_names.go"),
filepath.Join("testdata", "nolint_whole_file.go"),
)
return NewNolint(cache, log, lintersdb.NewManager(nil))
}
func getOkLogger(ctrl *gomock.Controller) *logutils.MockLog {
log := logutils.NewMockLog(ctrl)
log.EXPECT().Infof(gomock.Any(), gomock.Any()).AnyTimes()
return log
}
//nolint:funlen
func TestNolint(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
p := newTestNolintProcessor(getOkLogger(ctrl))
defer p.Finish()
// test inline comments
processAssertEmpty(t, p, newNolintFileIssue(3, "gofmt"))
processAssertEmpty(t, p, newNolintFileIssue(3, "gofmt")) // check cached is ok
processAssertSame(t, p, newNolintFileIssue(3, "gofmtA")) // check different name
processAssertEmpty(t, p, newNolintFileIssue(4, "gofmt"))
processAssertSame(t, p, newNolintFileIssue(4, "gofmtA")) // check different name
processAssertEmpty(t, p, newNolintFileIssue(5, "gofmt"))
processAssertEmpty(t, p, newNolintFileIssue(5, "govet"))
processAssertSame(t, p, newNolintFileIssue(5, "gofmtA")) // check different name
processAssertEmpty(t, p, newNolintFileIssue(6, "any"))
processAssertEmpty(t, p, newNolintFileIssue(7, "any"))
processAssertSame(t, p, newNolintFileIssue(1, "golint")) // no directive
// test preceding comments
processAssertEmpty(t, p, newNolintFileIssue(10, "any")) // preceding comment for var
processAssertEmpty(t, p, newNolintFileIssue(9, "any")) // preceding comment for var itself
processAssertSame(t, p, newNolintFileIssue(14, "any")) // preceding comment with extra \n
processAssertEmpty(t, p, newNolintFileIssue(12, "any")) // preceding comment with extra \n itself
processAssertSame(t, p, newNolintFileIssue(17, "any")) // preceding comment on different column
processAssertEmpty(t, p, newNolintFileIssue(16, "any")) // preceding comment on different column itself
// preceding comment for func name and comment itself
for i := 19; i <= 23; i++ {
processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
}
processAssertSame(t, p, newNolintFileIssue(24, "any")) // right after func
// preceding multiline comment: last line
for i := 25; i <= 30; i++ {
processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
}
processAssertSame(t, p, newNolintFileIssue(31, "any")) // between funcs
// preceding multiline comment: first line
for i := 32; i <= 37; i++ {
processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
}
processAssertSame(t, p, newNolintFileIssue(38, "any")) // between funcs
// preceding multiline comment: medium line
for i := 39; i <= 45; i++ {
processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
}
// check bug with transitive expanding for next and next line
for i := 1; i <= 8; i++ {
processAssertSame(t, p, newNolint2FileIssue(i))
}
for i := 9; i <= 10; i++ {
processAssertEmpty(t, p, newNolint2FileIssue(i))
}
// check inline comment for function
for i := 11; i <= 13; i++ {
processAssertSame(t, p, newNolint2FileIssue(i))
}
processAssertEmpty(t, p, newNolint2FileIssue(14))
for i := 15; i <= 18; i++ {
processAssertSame(t, p, newNolint2FileIssue(i))
}
// variables block exclude
for i := 55; i <= 56; i++ {
processAssertSame(t, p, newNolint2FileIssue(i))
}
}
func TestNolintInvalidLinterName(t *testing.T) {
fileName := filepath.Join("testdata", "nolint_bad_names.go")
issues := []result.Issue{
{
Pos: token.Position{
Filename: fileName,
Line: 3,
},
FromLinter: "varcheck",
},
{
Pos: token.Position{
Filename: fileName,
Line: 6,
},
FromLinter: "deadcode",
},
}
ctrl := gomock.NewController(t)
defer ctrl.Finish()
log := getOkLogger(ctrl)
log.EXPECT().Warnf("Found unknown linters in //nolint directives: %s", "bad1, bad2")
p := newTestNolintProcessor(log)
processAssertEmpty(t, p, issues...)
p.Finish()
}
func TestNolintAliases(t *testing.T) {
ctrl := gomock.NewController(t)
defer ctrl.Finish()
p := newTestNolintProcessor(getOkLogger(ctrl))
for _, line := range []int{47, 49, 51} {
line := line
t.Run(fmt.Sprintf("line-%d", line), func(t *testing.T) {
processAssertEmpty(t, p, newNolintFileIssue(line, "gosec"))
})
}
p.Finish()
}
func TestIgnoredRangeMatches(t *testing.T) {
var testcases = []struct {
doc string
issue result.Issue
linters []string
expected bool
}{
{
doc: "unmatched line",
issue: result.Issue{
Pos: token.Position{
Line: 100,
},
},
},
{
doc: "matched line, all linters",
issue: result.Issue{
Pos: token.Position{
Line: 5,
},
},
expected: true,
},
{
doc: "matched line, unmatched linter",
issue: result.Issue{
Pos: token.Position{
Line: 5,
},
},
linters: []string{"vet"},
},
{
doc: "matched line and linters",
issue: result.Issue{
Pos: token.Position{
Line: 20,
},
FromLinter: "vet",
},
linters: []string{"vet"},
expected: true,
},
}
for _, testcase := range testcases {
ir := ignoredRange{
col: 20,
Range: result.Range{
From: 5,
To: 20,
},
linters: testcase.linters,
}
assert.Equal(t, testcase.expected, ir.doesMatch(&testcase.issue), testcase.doc)
}
}
func TestNolintWholeFile(t *testing.T) {
fileName := filepath.Join("testdata", "nolint_whole_file.go")
p := newTestNolintProcessor(nil)
defer p.Finish()
processAssertEmpty(t, p, result.Issue{
Pos: token.Position{
Filename: fileName,
Line: 4,
},
FromLinter: "unparam",
})
processAssertSame(t, p, result.Issue{
Pos: token.Position{
Filename: fileName,
Line: 4,
},
FromLinter: "deadcode",
})
}