1 files changed, 139 insertions, 0 deletions
diff --git a/gopls/internal/lsp/analysis/fillreturns/testdata/src/a/a.go.golden b/gopls/internal/lsp/analysis/fillreturns/testdata/src/a/a.go.golden
new file mode 100644
index 000000000..f007a5f37
--- /dev/null
+++ b/gopls/internal/lsp/analysis/fillreturns/testdata/src/a/a.go.golden
@@ -0,0 +1,139 @@
+// Copyright 2020 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package fillreturns
+
+import (
+	"errors"
+	"go/ast"
+	ast2 "go/ast"
+	"io"
+	"net/http"
+	. "net/http"
+	"net/url"
+	"strconv"
+)
+
+type T struct{}
+type T1 = T
+type I interface{}
+type I1 = I
+type z func(string, http.Handler) error
+
+func x() error {
+	return errors.New("foo")
+}
+
+// The error messages below changed in 1.18; "return values" covers both forms.
+
+func b() (string, int, error) {
+	return "", 0, errors.New("foo") // want "return values"
+}
+
+func c() (string, int, error) {
+	return "", 7, errors.New("foo") // want "return values"
+}
+
+func d() (string, int, error) {
+	return "", 7, nil // want "return values"
+}
+
+func e() (T, error, *bool) {
+	return T{}, (z(http.ListenAndServe))("", nil), nil // want "return values"
+}
+
+func preserveLeft() (int, int, error) {
+	return 1, 0, errors.New("foo") // want "return values"
+}
+
+func matchValues() (int, error, string) {
+	return 3, errors.New("foo"), "" // want "return values"
+}
+
+func preventDataOverwrite() (int, string) {
+	return 0, "", errors.New("foo") // want "return values"
+}
+
+func closure() (string, error) {
+	_ = func() (int, error) {
+		return 0, nil // want "return values"
+	}
+	return "", nil // want "return values"
+}
+
+func basic() (uint8, uint16, uint32, uint64, int8, int16, int32, int64, float32, float64, complex64, complex128, byte, rune, uint, int, uintptr, string, bool, error) {
+	return 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "", false, nil // want "return values"
+}
+
+func complex() (*int, []int, [2]int, map[int]int) {
+	return nil, nil, nil, nil // want "return values"
+}
+
+func structsAndInterfaces() (T, url.URL, T1, I, I1, io.Reader, Client, ast2.Stmt) {
+	return T{}, url.URL{}, T{}, nil, nil, nil, Client{}, nil // want "return values"
+}
+
+func m() (int, error) {
+	if 1 == 2 {
+		return 0, nil // want "return values"
+	} else if 1 == 3 {
+		return 0, errors.New("foo") // want "return values"
+	} else {
+		return 1, nil // want "return values"
+	}
+	return 0, nil // want "return values"
+}
+
+func convertibleTypes() (ast2.Expr, int) {
+	return &ast2.ArrayType{}, 0 // want "return values"
+}
+
+func assignableTypes() (map[string]int, int) {
+	type X map[string]int
+	var x X
+	return x, 0 // want "return values"
+}
+
+func interfaceAndError() (I, int) {
+	return errors.New("foo"), 0 // want "return values"
+}
+
+func funcOneReturn() (string, error) {
+	return strconv.Itoa(1), nil // want "return values"
+}
+
+func funcMultipleReturn() (int, error, string) {
+	return strconv.Atoi("1")
+}
+
+func localFuncMultipleReturn() (string, int, error, string) {
+	return b()
+}
+
+func multipleUnused() (int, string, string, string) {
+	return 3, "", "", "", 4, 5 // want "return values"
+}
+
+func gotTooMany() int {
+	if true {
+		return 0 // want "return values"
+	} else {
+		return 1 // want "return values"
+	}
+	return 5 // want "return values"
+}
+
+func fillVars() (int, string, ast.Node, bool, error) {
+	eint := 0
+	s := "a"
+	var t bool
+	if true {
+		err := errors.New("fail")
+		return eint, s, nil, false, err // want "return values"
+	}
+	n := ast.NewIdent("ident")
+	int := 3
+	var b bool
+	return int, "", n, b, nil // want "return values"
+}