test: fix cgo tests (#159)

Author: ldez

.golangci.yml

@@ -60,6 +60,7 @@ linters:
     - prealloc
     - rowserrcheck
     - testpackage
+    - tparallel
     - varnamelen
     - wastedassign
 

analyzer.go

@@ -79,12 +79,17 @@ func (wa *wslAnalyzer) flags() flag.FlagSet {
 
 func (wa *wslAnalyzer) run(pass *analysis.Pass) (interface{}, error) {
 	for _, file := range pass.Files {
-		if !wa.config.IncludeGenerated && ast.IsGenerated(file) {
+		filename := getFilename(pass.Fset, file)
+		if !strings.HasSuffix(filename, ".go") {
 			continue
 		}
 
-		filename := getFilename(pass.Fset, file)
-		if !strings.HasSuffix(filename, ".go") {
+		// if the file is related to cgo the filename of the unadjusted position is a not a '.go' file.
+		fn := pass.Fset.PositionFor(file.Pos(), false).Filename
+
+		// The file is skipped if the "unadjusted" file is a Go file, and it's a generated file (ex: "_test.go" file).
+		// The other non-Go files are skipped by the first 'if' with the adjusted position.
+		if !wa.config.IncludeGenerated && ast.IsGenerated(file) && strings.HasSuffix(fn, ".go") {
 			continue
 		}
 

testdata/src/default_config/cgo.go.golden

@@ -15,8 +15,6 @@ func TestWIP(t *testing.T) {
 }
 
 func TestDefaultConfig(t *testing.T) {
-	t.Parallel()
-
 	testdata := analysistest.TestData()
 
 	testCases := []struct {
@@ -32,6 +30,7 @@ func TestDefaultConfig(t *testing.T) {
 		{dir: "generic_handling"},
 		{dir: "multiline_case"},
 		{dir: "remove_whitespace"},
+		{dir: "line_directive"},
 	}
 
 	for _, test := range testCases {
@@ -44,6 +43,13 @@ func TestDefaultConfig(t *testing.T) {
 	}
 }
 
+func TestCGo(t *testing.T) {
+	testdata := analysistest.TestData()
+
+	analyzer := NewAnalyzer(nil)
+	analysistest.Run(t, testdata, analyzer, filepath.Join("default_config", "cgo"))
+}
+
 func TestWithConfig(t *testing.T) {
 	testdata := analysistest.TestData()