forked from TrueCloudLab/restic
Vendor go-cmp
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Alexander Neumann
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36 changed files with 8029 additions and 0 deletions
231
vendor/github.com/google/go-cmp/cmp/options_test.go
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vendored
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vendor/github.com/google/go-cmp/cmp/options_test.go
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// Copyright 2017, The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE.md file.
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package cmp
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import (
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"io"
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"reflect"
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"strings"
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"testing"
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ts "github.com/google/go-cmp/cmp/internal/teststructs"
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)
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// Test that the creation of Option values with non-sensible inputs produces
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// a run-time panic with a decent error message
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func TestOptionPanic(t *testing.T) {
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type myBool bool
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tests := []struct {
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label string // Test description
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fnc interface{} // Option function to call
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args []interface{} // Arguments to pass in
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wantPanic string // Expected panic message
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}{{
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label: "AllowUnexported",
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fnc: AllowUnexported,
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args: []interface{}{},
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}, {
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label: "AllowUnexported",
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fnc: AllowUnexported,
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args: []interface{}{1},
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wantPanic: "invalid struct type",
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}, {
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label: "AllowUnexported",
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fnc: AllowUnexported,
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args: []interface{}{ts.StructA{}},
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}, {
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label: "AllowUnexported",
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fnc: AllowUnexported,
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args: []interface{}{ts.StructA{}, ts.StructB{}, ts.StructA{}},
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}, {
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label: "AllowUnexported",
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fnc: AllowUnexported,
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args: []interface{}{ts.StructA{}, &ts.StructB{}, ts.StructA{}},
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wantPanic: "invalid struct type",
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{5},
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wantPanic: "invalid comparer function",
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{func(x, y interface{}) bool { return true }},
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{func(x, y io.Reader) bool { return true }},
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{func(x, y io.Reader) myBool { return true }},
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wantPanic: "invalid comparer function",
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{func(x string, y interface{}) bool { return true }},
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wantPanic: "invalid comparer function",
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}, {
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label: "Comparer",
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fnc: Comparer,
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args: []interface{}{(func(int, int) bool)(nil)},
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wantPanic: "invalid comparer function",
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", 0},
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wantPanic: "invalid transformer function",
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", func(int) int { return 0 }},
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", func(bool) bool { return true }},
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", func(int) bool { return true }},
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", func(int, int) bool { return true }},
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wantPanic: "invalid transformer function",
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"", (func(int) uint)(nil)},
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wantPanic: "invalid transformer function",
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"Func", func(Path) Path { return nil }},
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"世界", func(int) bool { return true }},
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"/*", func(int) bool { return true }},
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wantPanic: "invalid name",
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}, {
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label: "Transformer",
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fnc: Transformer,
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args: []interface{}{"_", func(int) bool { return true }},
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wantPanic: "invalid name",
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}, {
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label: "FilterPath",
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fnc: FilterPath,
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args: []interface{}{(func(Path) bool)(nil), Ignore()},
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wantPanic: "invalid path filter function",
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}, {
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label: "FilterPath",
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fnc: FilterPath,
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args: []interface{}{func(Path) bool { return true }, Ignore()},
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}, {
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label: "FilterPath",
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fnc: FilterPath,
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args: []interface{}{func(Path) bool { return true }, &defaultReporter{}},
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wantPanic: "invalid option type",
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}, {
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label: "FilterPath",
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fnc: FilterPath,
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args: []interface{}{func(Path) bool { return true }, Options{Ignore(), Ignore()}},
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}, {
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label: "FilterPath",
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fnc: FilterPath,
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args: []interface{}{func(Path) bool { return true }, Options{Ignore(), &defaultReporter{}}},
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wantPanic: "invalid option type",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{0, Ignore()},
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wantPanic: "invalid values filter function",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(x, y int) bool { return true }, Ignore()},
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(x, y interface{}) bool { return true }, Ignore()},
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(x, y interface{}) myBool { return true }, Ignore()},
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wantPanic: "invalid values filter function",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(x io.Reader, y interface{}) bool { return true }, Ignore()},
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wantPanic: "invalid values filter function",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{(func(int, int) bool)(nil), Ignore()},
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wantPanic: "invalid values filter function",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(int, int) bool { return true }, &defaultReporter{}},
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wantPanic: "invalid option type",
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(int, int) bool { return true }, Options{Ignore(), Ignore()}},
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}, {
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label: "FilterValues",
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fnc: FilterValues,
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args: []interface{}{func(int, int) bool { return true }, Options{Ignore(), &defaultReporter{}}},
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wantPanic: "invalid option type",
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}}
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for _, tt := range tests {
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tRun(t, tt.label, func(t *testing.T) {
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var gotPanic string
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func() {
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defer func() {
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if ex := recover(); ex != nil {
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if s, ok := ex.(string); ok {
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gotPanic = s
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} else {
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panic(ex)
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}
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}
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}()
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var vargs []reflect.Value
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for _, arg := range tt.args {
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vargs = append(vargs, reflect.ValueOf(arg))
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}
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reflect.ValueOf(tt.fnc).Call(vargs)
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}()
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if tt.wantPanic == "" {
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if gotPanic != "" {
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t.Fatalf("unexpected panic message: %s", gotPanic)
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}
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} else {
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if !strings.Contains(gotPanic, tt.wantPanic) {
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t.Fatalf("panic message:\ngot: %s\nwant: %s", gotPanic, tt.wantPanic)
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}
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}
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})
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}
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}
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// TODO: Delete this hack when we drop Go1.6 support.
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func tRun(t *testing.T, name string, f func(t *testing.T)) {
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type runner interface {
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Run(string, func(t *testing.T)) bool
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}
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var ti interface{} = t
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if r, ok := ti.(runner); ok {
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r.Run(name, f)
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} else {
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t.Logf("Test: %s", name)
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f(t)
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}
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}
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