+++ /dev/null
-// Copyright 2017, 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.md file.
-
-package cmp
-
-import (
- "io"
- "reflect"
- "strings"
- "testing"
-
- ts "github.com/google/go-cmp/cmp/internal/teststructs"
-)
-
-// Test that the creation of Option values with non-sensible inputs produces
-// a run-time panic with a decent error message
-func TestOptionPanic(t *testing.T) {
- type myBool bool
- tests := []struct {
- label string // Test description
- fnc interface{} // Option function to call
- args []interface{} // Arguments to pass in
- wantPanic string // Expected panic message
- }{{
- label: "AllowUnexported",
- fnc: AllowUnexported,
- args: []interface{}{},
- }, {
- label: "AllowUnexported",
- fnc: AllowUnexported,
- args: []interface{}{1},
- wantPanic: "invalid struct type",
- }, {
- label: "AllowUnexported",
- fnc: AllowUnexported,
- args: []interface{}{ts.StructA{}},
- }, {
- label: "AllowUnexported",
- fnc: AllowUnexported,
- args: []interface{}{ts.StructA{}, ts.StructB{}, ts.StructA{}},
- }, {
- label: "AllowUnexported",
- fnc: AllowUnexported,
- args: []interface{}{ts.StructA{}, &ts.StructB{}, ts.StructA{}},
- wantPanic: "invalid struct type",
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{5},
- wantPanic: "invalid comparer function",
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{func(x, y interface{}) bool { return true }},
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{func(x, y io.Reader) bool { return true }},
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{func(x, y io.Reader) myBool { return true }},
- wantPanic: "invalid comparer function",
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{func(x string, y interface{}) bool { return true }},
- wantPanic: "invalid comparer function",
- }, {
- label: "Comparer",
- fnc: Comparer,
- args: []interface{}{(func(int, int) bool)(nil)},
- wantPanic: "invalid comparer function",
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", 0},
- wantPanic: "invalid transformer function",
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", func(int) int { return 0 }},
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", func(bool) bool { return true }},
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", func(int) bool { return true }},
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", func(int, int) bool { return true }},
- wantPanic: "invalid transformer function",
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"", (func(int) uint)(nil)},
- wantPanic: "invalid transformer function",
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"Func", func(Path) Path { return nil }},
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"世界", func(int) bool { return true }},
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"/*", func(int) bool { return true }},
- wantPanic: "invalid name",
- }, {
- label: "Transformer",
- fnc: Transformer,
- args: []interface{}{"_", func(int) bool { return true }},
- }, {
- label: "FilterPath",
- fnc: FilterPath,
- args: []interface{}{(func(Path) bool)(nil), Ignore()},
- wantPanic: "invalid path filter function",
- }, {
- label: "FilterPath",
- fnc: FilterPath,
- args: []interface{}{func(Path) bool { return true }, Ignore()},
- }, {
- label: "FilterPath",
- fnc: FilterPath,
- args: []interface{}{func(Path) bool { return true }, Reporter(&defaultReporter{})},
- wantPanic: "invalid option type",
- }, {
- label: "FilterPath",
- fnc: FilterPath,
- args: []interface{}{func(Path) bool { return true }, Options{Ignore(), Ignore()}},
- }, {
- label: "FilterPath",
- fnc: FilterPath,
- args: []interface{}{func(Path) bool { return true }, Options{Ignore(), Reporter(&defaultReporter{})}},
- wantPanic: "invalid option type",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{0, Ignore()},
- wantPanic: "invalid values filter function",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(x, y int) bool { return true }, Ignore()},
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(x, y interface{}) bool { return true }, Ignore()},
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(x, y interface{}) myBool { return true }, Ignore()},
- wantPanic: "invalid values filter function",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(x io.Reader, y interface{}) bool { return true }, Ignore()},
- wantPanic: "invalid values filter function",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{(func(int, int) bool)(nil), Ignore()},
- wantPanic: "invalid values filter function",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(int, int) bool { return true }, Reporter(&defaultReporter{})},
- wantPanic: "invalid option type",
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(int, int) bool { return true }, Options{Ignore(), Ignore()}},
- }, {
- label: "FilterValues",
- fnc: FilterValues,
- args: []interface{}{func(int, int) bool { return true }, Options{Ignore(), Reporter(&defaultReporter{})}},
- wantPanic: "invalid option type",
- }}
-
- for _, tt := range tests {
- t.Run(tt.label, func(t *testing.T) {
- var gotPanic string
- func() {
- defer func() {
- if ex := recover(); ex != nil {
- if s, ok := ex.(string); ok {
- gotPanic = s
- } else {
- panic(ex)
- }
- }
- }()
- var vargs []reflect.Value
- for _, arg := range tt.args {
- vargs = append(vargs, reflect.ValueOf(arg))
- }
- reflect.ValueOf(tt.fnc).Call(vargs)
- }()
- if tt.wantPanic == "" {
- if gotPanic != "" {
- t.Fatalf("unexpected panic message: %s", gotPanic)
- }
- } else {
- if !strings.Contains(gotPanic, tt.wantPanic) {
- t.Fatalf("panic message:\ngot: %s\nwant: %s", gotPanic, tt.wantPanic)
- }
- }
- })
- }
-}
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