1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/github.com/maratori/testableexamples/pkg/testableexamples/testableexamples.go b/vendor/github.com/maratori/testableexamples/pkg/testableexamples/testableexamples.go
new file mode 100644
index 000000000..26d22c703
--- /dev/null
+++ b/vendor/github.com/maratori/testableexamples/pkg/testableexamples/testableexamples.go
@@ -0,0 +1,34 @@
+package testableexamples
+
+import (
+	"go/ast"
+	"go/doc"
+	"strings"
+
+	"golang.org/x/tools/go/analysis"
+)
+
+// NewAnalyzer returns Analyzer that checks if examples are testable.
+func NewAnalyzer() *analysis.Analyzer {
+	return &analysis.Analyzer{
+		Name: "testableexamples",
+		Doc:  "linter checks if examples are testable (have an expected output)",
+		Run: func(pass *analysis.Pass) (interface{}, error) {
+			testFiles := make([]*ast.File, 0, len(pass.Files))
+			for _, file := range pass.Files {
+				fileName := pass.Fset.File(file.Pos()).Name()
+				if strings.HasSuffix(fileName, "_test.go") {
+					testFiles = append(testFiles, file)
+				}
+			}
+
+			for _, example := range doc.Examples(testFiles...) {
+				if example.Output == "" && !example.EmptyOutput {
+					pass.Reportf(example.Code.Pos(), "missing output for example, go test can't validate it")
+				}
+			}
+
+			return nil, nil
+		},
+	}
+}