355 lines
9.7 KiB
Go
355 lines
9.7 KiB
Go
package processors
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import (
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"fmt"
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"go/token"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/mock"
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"github.com/golangci/golangci-lint/pkg/config"
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"github.com/golangci/golangci-lint/pkg/golinters"
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"github.com/golangci/golangci-lint/pkg/lint/lintersdb"
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"github.com/golangci/golangci-lint/pkg/logutils"
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"github.com/golangci/golangci-lint/pkg/result"
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)
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func newNolintFileIssue(line int, fromLinter string) result.Issue {
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return result.Issue{
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Pos: token.Position{
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Filename: filepath.Join("testdata", "nolint.go"),
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Line: line,
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},
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FromLinter: fromLinter,
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}
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}
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func newNolint2FileIssue(line int) result.Issue {
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i := newNolintFileIssue(line, "errcheck")
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i.Pos.Filename = filepath.Join("testdata", "nolint2.go")
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return i
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}
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func newTestNolintProcessor(log logutils.Log) *Nolint {
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return NewNolint(log, lintersdb.NewManager(nil, nil), nil)
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}
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func getMockLog() *logutils.MockLog {
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log := logutils.NewMockLog()
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log.On("Infof", mock.Anything, mock.Anything).Maybe()
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return log
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}
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func TestNolint(t *testing.T) {
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p := newTestNolintProcessor(getMockLog())
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defer p.Finish()
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// test inline comments
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processAssertEmpty(t, p, newNolintFileIssue(3, "gofmt"))
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processAssertEmpty(t, p, newNolintFileIssue(3, "gofmt")) // check cached is ok
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processAssertSame(t, p, newNolintFileIssue(3, "gofmtA")) // check different name
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processAssertEmpty(t, p, newNolintFileIssue(4, "gofmt"))
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processAssertSame(t, p, newNolintFileIssue(4, "gofmtA")) // check different name
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processAssertEmpty(t, p, newNolintFileIssue(5, "gofmt"))
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processAssertEmpty(t, p, newNolintFileIssue(5, "govet"))
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processAssertSame(t, p, newNolintFileIssue(5, "gofmtA")) // check different name
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processAssertEmpty(t, p, newNolintFileIssue(6, "any"))
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processAssertEmpty(t, p, newNolintFileIssue(7, "any"))
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processAssertSame(t, p, newNolintFileIssue(1, "golint")) // no directive
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// test preceding comments
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processAssertEmpty(t, p, newNolintFileIssue(10, "any")) // preceding comment for var
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processAssertEmpty(t, p, newNolintFileIssue(9, "any")) // preceding comment for var itself
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processAssertSame(t, p, newNolintFileIssue(14, "any")) // preceding comment with extra \n
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processAssertEmpty(t, p, newNolintFileIssue(12, "any")) // preceding comment with extra \n itself
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processAssertSame(t, p, newNolintFileIssue(17, "any")) // preceding comment on different column
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processAssertEmpty(t, p, newNolintFileIssue(16, "any")) // preceding comment on different column itself
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// preceding comment for func name and comment itself
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for i := 19; i <= 23; i++ {
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processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
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}
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processAssertSame(t, p, newNolintFileIssue(24, "any")) // right after func
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// preceding multiline comment: last line
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for i := 25; i <= 30; i++ {
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processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
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}
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processAssertSame(t, p, newNolintFileIssue(31, "any")) // between funcs
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// preceding multiline comment: first line
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for i := 32; i <= 37; i++ {
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processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
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}
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processAssertSame(t, p, newNolintFileIssue(38, "any")) // between funcs
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// preceding multiline comment: medium line
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for i := 39; i <= 45; i++ {
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processAssertEmpty(t, p, newNolintFileIssue(i, "any"))
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}
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// check bug with transitive expanding for next and next line
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for i := 1; i <= 8; i++ {
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processAssertSame(t, p, newNolint2FileIssue(i))
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}
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for i := 9; i <= 10; i++ {
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processAssertEmpty(t, p, newNolint2FileIssue(i))
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}
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// check inline comment for function
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for i := 11; i <= 13; i++ {
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processAssertSame(t, p, newNolint2FileIssue(i))
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}
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processAssertEmpty(t, p, newNolint2FileIssue(14))
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for i := 15; i <= 18; i++ {
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processAssertSame(t, p, newNolint2FileIssue(i))
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}
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// variables block exclude
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for i := 55; i <= 56; i++ {
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processAssertSame(t, p, newNolint2FileIssue(i))
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}
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}
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func TestNolintInvalidLinterName(t *testing.T) {
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fileName := filepath.Join("testdata", "nolint_bad_names.go")
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issues := []result.Issue{
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{
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Pos: token.Position{
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Filename: fileName,
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Line: 10,
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},
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FromLinter: "errcheck",
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},
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{
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Pos: token.Position{
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Filename: fileName,
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Line: 13,
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},
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FromLinter: "errcheck",
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},
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{
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Pos: token.Position{
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Filename: fileName,
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Line: 22,
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},
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FromLinter: "ineffassign",
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},
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}
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log := getMockLog()
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log.On("Warnf", "Found unknown linters in //nolint directives: %s", "bad1, bad2")
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p := newTestNolintProcessor(log)
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processAssertEmpty(t, p, issues...)
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p.Finish()
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}
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func TestNolintInvalidLinterNameWithViolationOnTheSameLine(t *testing.T) {
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log := getMockLog()
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log.On("Warnf", "Found unknown linters in //nolint directives: %s", "foobar")
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issues := []result.Issue{
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{
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Pos: token.Position{
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Filename: filepath.Join("testdata", "nolint_apply_to_unknown.go"),
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Line: 4,
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},
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FromLinter: "gofmt",
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},
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}
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p := newTestNolintProcessor(log)
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processedIssues, err := p.Process(issues)
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p.Finish()
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assert.Len(t, processedIssues, 1)
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assert.Equal(t, issues, processedIssues)
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assert.NoError(t, err)
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}
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func TestNolintAliases(t *testing.T) {
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p := newTestNolintProcessor(getMockLog())
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for _, line := range []int{47, 49, 51} {
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line := line
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t.Run(fmt.Sprintf("line-%d", line), func(t *testing.T) {
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processAssertEmpty(t, p, newNolintFileIssue(line, "gosec"))
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})
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}
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p.Finish()
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}
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func TestIgnoredRangeMatches(t *testing.T) {
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var testcases = []struct {
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doc string
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issue result.Issue
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linters []string
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expected bool
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}{
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{
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doc: "unmatched line",
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issue: result.Issue{
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Pos: token.Position{
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Line: 100,
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},
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},
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},
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{
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doc: "matched line, all linters",
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issue: result.Issue{
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Pos: token.Position{
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Line: 5,
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},
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},
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expected: true,
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},
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{
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doc: "matched line, unmatched linter",
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issue: result.Issue{
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Pos: token.Position{
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Line: 5,
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},
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},
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linters: []string{"vet"},
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},
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{
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doc: "matched line and linters",
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issue: result.Issue{
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Pos: token.Position{
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Line: 20,
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},
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FromLinter: "vet",
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},
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linters: []string{"vet"},
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expected: true,
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},
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}
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for _, testcase := range testcases {
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ir := ignoredRange{
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col: 20,
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Range: result.Range{
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From: 5,
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To: 20,
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},
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linters: testcase.linters,
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}
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assert.Equal(t, testcase.expected, ir.doesMatch(&testcase.issue), testcase.doc)
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}
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}
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func TestNolintWholeFile(t *testing.T) {
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fileName := filepath.Join("testdata", "nolint_whole_file.go")
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p := newTestNolintProcessor(getMockLog())
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defer p.Finish()
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processAssertEmpty(t, p, result.Issue{
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Pos: token.Position{
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Filename: fileName,
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Line: 9,
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},
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FromLinter: "errcheck",
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})
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processAssertSame(t, p, result.Issue{
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Pos: token.Position{
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Filename: fileName,
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Line: 14,
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},
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FromLinter: "govet",
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})
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}
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func TestNolintUnused(t *testing.T) {
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fileName := filepath.Join("testdata", "nolint_unused.go")
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log := getMockLog()
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log.On("Warnf", "Found unknown linters in //nolint directives: %s", "blah")
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createProcessor := func(t *testing.T, log *logutils.MockLog, enabledLinters []string) *Nolint {
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enabledSetLog := logutils.NewMockLog()
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enabledSetLog.On("Infof", "Active %d linters: %s", len(enabledLinters), enabledLinters)
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cfg := &config.Config{Linters: config.Linters{DisableAll: true, Enable: enabledLinters}}
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dbManager := lintersdb.NewManager(cfg, nil)
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enabledLintersSet := lintersdb.NewEnabledSet(dbManager, lintersdb.NewValidator(dbManager), enabledSetLog, cfg)
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enabledLintersMap, err := enabledLintersSet.GetEnabledLintersMap()
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assert.NoError(t, err)
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return NewNolint(log, dbManager, enabledLintersMap)
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}
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// the issue below is the nolintlint issue that would be generated for the test file
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nolintlintIssueVarcheck := result.Issue{
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Pos: token.Position{
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Filename: fileName,
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Line: 3,
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},
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FromLinter: golinters.NoLintLintName,
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ExpectNoLint: true,
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ExpectedNoLintLinter: "varcheck",
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}
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// the issue below is another nolintlint issue that would be generated for the test file
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nolintlintIssueVarcheckUnusedOK := result.Issue{
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Pos: token.Position{
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Filename: fileName,
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Line: 5,
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},
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FromLinter: golinters.NoLintLintName,
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ExpectNoLint: true,
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ExpectedNoLintLinter: "varcheck",
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}
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t.Run("when an issue does not occur, it is not removed from the nolintlint issues", func(t *testing.T) {
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p := createProcessor(t, log, []string{"nolintlint", "varcheck"})
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defer p.Finish()
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processAssertSame(t, p, nolintlintIssueVarcheck)
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})
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t.Run("when an issue does not occur but nolintlint is nolinted, it is removed from the nolintlint issues", func(t *testing.T) {
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p := createProcessor(t, log, []string{"nolintlint", "varcheck"})
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defer p.Finish()
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processAssertEmpty(t, p, nolintlintIssueVarcheckUnusedOK)
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})
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t.Run("when an issue occurs, it is removed from the nolintlint issues", func(t *testing.T) {
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p := createProcessor(t, log, []string{"nolintlint", "varcheck"})
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defer p.Finish()
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processAssertEmpty(t, p, []result.Issue{{
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Pos: token.Position{
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Filename: fileName,
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Line: 3,
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},
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FromLinter: "varcheck",
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}, nolintlintIssueVarcheck}...)
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})
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t.Run("when a linter is not enabled, it is removed from the nolintlint unused issues", func(t *testing.T) {
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enabledSetLog := logutils.NewMockLog()
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enabledSetLog.On("Infof", "Active %d linters: %s", 1, []string{"nolintlint"})
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cfg := &config.Config{Linters: config.Linters{DisableAll: true, Enable: []string{"nolintlint"}}}
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dbManager := lintersdb.NewManager(cfg, nil)
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enabledLintersSet := lintersdb.NewEnabledSet(dbManager, lintersdb.NewValidator(dbManager), enabledSetLog, cfg)
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enabledLintersMap, err := enabledLintersSet.GetEnabledLintersMap()
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assert.NoError(t, err)
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p := NewNolint(log, dbManager, enabledLintersMap)
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defer p.Finish()
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processAssertEmpty(t, p, nolintlintIssueVarcheck)
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})
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}
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