refactor: rename files to follow Go convention

testdata/unused_receiver.go

@@ -0,0 +1,43 @@
+package fixtures
+
+import (
+	"fmt"
+
+	"github.com/mgechev/revive/lint"
+)
+
+func (f *Unix) Name() string { // MATCH /method receiver 'f' is not referenced in method's body, consider removing or renaming it as _/
+	return "unix"
+}
+
+func (f *Unix) Format(failures <-chan lint.Failure, _ lint.RulesConfig) (string, error) { // MATCH /method receiver 'f' is not referenced in method's body, consider removing or renaming it as _/
+	for failure := range failures {
+		fmt.Printf("%v: [%s] %s\n", failure.Position.Start, failure.RuleName, failure.Failure)
+	}
+	return "", nil
+}
+
+func (u *Unix) Foo() (string, error) { // MATCH /method receiver 'u' is not referenced in method's body, consider removing or renaming it as _/
+	for failure := range failures {
+		u := 1 // shadowing the receiver
+		fmt.Printf("%v\n", u)
+	}
+	return "", nil
+}
+
+func (u *Unix) Foos() (string, error) {
+	for failure := range failures {
+		u := 1 // shadowing the receiver
+		fmt.Printf("%v\n", u)
+	}
+
+	return u, nil // use of the receiver
+}
+
+func (u *Unix) Bar() (string, error) {
+	for failure := range failures {
+		u.path = nil // modifies the receiver
+		fmt.Printf("%v\n", u)
+	}
+	return "", nil
+}