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Diffstat (limited to 'vendor/github.com/google/gofuzz')
| -rw-r--r-- | vendor/github.com/google/gofuzz/LICENSE | 202 | ||||
| -rw-r--r-- | vendor/github.com/google/gofuzz/doc.go | 18 | ||||
| -rw-r--r-- | vendor/github.com/google/gofuzz/fuzz.go | 487 |
3 files changed, 0 insertions, 707 deletions
diff --git a/vendor/github.com/google/gofuzz/LICENSE b/vendor/github.com/google/gofuzz/LICENSE deleted file mode 100644 index d64569567..000000000 --- a/vendor/github.com/google/gofuzz/LICENSE +++ /dev/null @@ -1,202 +0,0 @@ - - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed under the Apache License, Version 2.0 (the "License"); - you may not use this file except in compliance with the License. - You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - - Unless required by applicable law or agreed to in writing, software - distributed under the License is distributed on an "AS IS" BASIS, - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - See the License for the specific language governing permissions and - limitations under the License. diff --git a/vendor/github.com/google/gofuzz/doc.go b/vendor/github.com/google/gofuzz/doc.go deleted file mode 100644 index 9f9956d4a..000000000 --- a/vendor/github.com/google/gofuzz/doc.go +++ /dev/null @@ -1,18 +0,0 @@ -/* -Copyright 2014 Google Inc. All rights reserved. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ - -// Package fuzz is a library for populating go objects with random values. -package fuzz diff --git a/vendor/github.com/google/gofuzz/fuzz.go b/vendor/github.com/google/gofuzz/fuzz.go deleted file mode 100644 index 1dfa80a6f..000000000 --- a/vendor/github.com/google/gofuzz/fuzz.go +++ /dev/null @@ -1,487 +0,0 @@ -/* -Copyright 2014 Google Inc. All rights reserved. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ - -package fuzz - -import ( - "fmt" - "math/rand" - "reflect" - "time" -) - -// fuzzFuncMap is a map from a type to a fuzzFunc that handles that type. -type fuzzFuncMap map[reflect.Type]reflect.Value - -// Fuzzer knows how to fill any object with random fields. -type Fuzzer struct { - fuzzFuncs fuzzFuncMap - defaultFuzzFuncs fuzzFuncMap - r *rand.Rand - nilChance float64 - minElements int - maxElements int - maxDepth int -} - -// New returns a new Fuzzer. Customize your Fuzzer further by calling Funcs, -// RandSource, NilChance, or NumElements in any order. -func New() *Fuzzer { - return NewWithSeed(time.Now().UnixNano()) -} - -func NewWithSeed(seed int64) *Fuzzer { - f := &Fuzzer{ - defaultFuzzFuncs: fuzzFuncMap{ - reflect.TypeOf(&time.Time{}): reflect.ValueOf(fuzzTime), - }, - - fuzzFuncs: fuzzFuncMap{}, - r: rand.New(rand.NewSource(seed)), - nilChance: .2, - minElements: 1, - maxElements: 10, - maxDepth: 100, - } - return f -} - -// Funcs adds each entry in fuzzFuncs as a custom fuzzing function. -// -// Each entry in fuzzFuncs must be a function taking two parameters. -// The first parameter must be a pointer or map. It is the variable that -// function will fill with random data. The second parameter must be a -// fuzz.Continue, which will provide a source of randomness and a way -// to automatically continue fuzzing smaller pieces of the first parameter. -// -// These functions are called sensibly, e.g., if you wanted custom string -// fuzzing, the function `func(s *string, c fuzz.Continue)` would get -// called and passed the address of strings. Maps and pointers will always -// be made/new'd for you, ignoring the NilChange option. For slices, it -// doesn't make much sense to pre-create them--Fuzzer doesn't know how -// long you want your slice--so take a pointer to a slice, and make it -// yourself. (If you don't want your map/pointer type pre-made, take a -// pointer to it, and make it yourself.) See the examples for a range of -// custom functions. -func (f *Fuzzer) Funcs(fuzzFuncs ...interface{}) *Fuzzer { - for i := range fuzzFuncs { - v := reflect.ValueOf(fuzzFuncs[i]) - if v.Kind() != reflect.Func { - panic("Need only funcs!") - } - t := v.Type() - if t.NumIn() != 2 || t.NumOut() != 0 { - panic("Need 2 in and 0 out params!") - } - argT := t.In(0) - switch argT.Kind() { - case reflect.Ptr, reflect.Map: - default: - panic("fuzzFunc must take pointer or map type") - } - if t.In(1) != reflect.TypeOf(Continue{}) { - panic("fuzzFunc's second parameter must be type fuzz.Continue") - } - f.fuzzFuncs[argT] = v - } - return f -} - -// RandSource causes f to get values from the given source of randomness. -// Use if you want deterministic fuzzing. -func (f *Fuzzer) RandSource(s rand.Source) *Fuzzer { - f.r = rand.New(s) - return f -} - -// NilChance sets the probability of creating a nil pointer, map, or slice to -// 'p'. 'p' should be between 0 (no nils) and 1 (all nils), inclusive. -func (f *Fuzzer) NilChance(p float64) *Fuzzer { - if p < 0 || p > 1 { - panic("p should be between 0 and 1, inclusive.") - } - f.nilChance = p - return f -} - -// NumElements sets the minimum and maximum number of elements that will be -// added to a non-nil map or slice. -func (f *Fuzzer) NumElements(atLeast, atMost int) *Fuzzer { - if atLeast > atMost { - panic("atLeast must be <= atMost") - } - if atLeast < 0 { - panic("atLeast must be >= 0") - } - f.minElements = atLeast - f.maxElements = atMost - return f -} - -func (f *Fuzzer) genElementCount() int { - if f.minElements == f.maxElements { - return f.minElements - } - return f.minElements + f.r.Intn(f.maxElements-f.minElements+1) -} - -func (f *Fuzzer) genShouldFill() bool { - return f.r.Float64() > f.nilChance -} - -// MaxDepth sets the maximum number of recursive fuzz calls that will be made -// before stopping. This includes struct members, pointers, and map and slice -// elements. -func (f *Fuzzer) MaxDepth(d int) *Fuzzer { - f.maxDepth = d - return f -} - -// Fuzz recursively fills all of obj's fields with something random. First -// this tries to find a custom fuzz function (see Funcs). If there is no -// custom function this tests whether the object implements fuzz.Interface and, -// if so, calls Fuzz on it to fuzz itself. If that fails, this will see if -// there is a default fuzz function provided by this package. If all of that -// fails, this will generate random values for all primitive fields and then -// recurse for all non-primitives. -// -// This is safe for cyclic or tree-like structs, up to a limit. Use the -// MaxDepth method to adjust how deep you need it to recurse. -// -// obj must be a pointer. Only exported (public) fields can be set (thanks, -// golang :/ ) Intended for tests, so will panic on bad input or unimplemented -// fields. -func (f *Fuzzer) Fuzz(obj interface{}) { - v := reflect.ValueOf(obj) - if v.Kind() != reflect.Ptr { - panic("needed ptr!") - } - v = v.Elem() - f.fuzzWithContext(v, 0) -} - -// FuzzNoCustom is just like Fuzz, except that any custom fuzz function for -// obj's type will not be called and obj will not be tested for fuzz.Interface -// conformance. This applies only to obj and not other instances of obj's -// type. -// Not safe for cyclic or tree-like structs! -// obj must be a pointer. Only exported (public) fields can be set (thanks, golang :/ ) -// Intended for tests, so will panic on bad input or unimplemented fields. -func (f *Fuzzer) FuzzNoCustom(obj interface{}) { - v := reflect.ValueOf(obj) - if v.Kind() != reflect.Ptr { - panic("needed ptr!") - } - v = v.Elem() - f.fuzzWithContext(v, flagNoCustomFuzz) -} - -const ( - // Do not try to find a custom fuzz function. Does not apply recursively. - flagNoCustomFuzz uint64 = 1 << iota -) - -func (f *Fuzzer) fuzzWithContext(v reflect.Value, flags uint64) { - fc := &fuzzerContext{fuzzer: f} - fc.doFuzz(v, flags) -} - -// fuzzerContext carries context about a single fuzzing run, which lets Fuzzer -// be thread-safe. -type fuzzerContext struct { - fuzzer *Fuzzer - curDepth int -} - -func (fc *fuzzerContext) doFuzz(v reflect.Value, flags uint64) { - if fc.curDepth >= fc.fuzzer.maxDepth { - return - } - fc.curDepth++ - defer func() { fc.curDepth-- }() - - if !v.CanSet() { - return - } - - if flags&flagNoCustomFuzz == 0 { - // Check for both pointer and non-pointer custom functions. - if v.CanAddr() && fc.tryCustom(v.Addr()) { - return - } - if fc.tryCustom(v) { - return - } - } - - if fn, ok := fillFuncMap[v.Kind()]; ok { - fn(v, fc.fuzzer.r) - return - } - switch v.Kind() { - case reflect.Map: - if fc.fuzzer.genShouldFill() { - v.Set(reflect.MakeMap(v.Type())) - n := fc.fuzzer.genElementCount() - for i := 0; i < n; i++ { - key := reflect.New(v.Type().Key()).Elem() - fc.doFuzz(key, 0) - val := reflect.New(v.Type().Elem()).Elem() - fc.doFuzz(val, 0) - v.SetMapIndex(key, val) - } - return - } - v.Set(reflect.Zero(v.Type())) - case reflect.Ptr: - if fc.fuzzer.genShouldFill() { - v.Set(reflect.New(v.Type().Elem())) - fc.doFuzz(v.Elem(), 0) - return - } - v.Set(reflect.Zero(v.Type())) - case reflect.Slice: - if fc.fuzzer.genShouldFill() { - n := fc.fuzzer.genElementCount() - v.Set(reflect.MakeSlice(v.Type(), n, n)) - for i := 0; i < n; i++ { - fc.doFuzz(v.Index(i), 0) - } - return - } - v.Set(reflect.Zero(v.Type())) - case reflect.Array: - if fc.fuzzer.genShouldFill() { - n := v.Len() - for i := 0; i < n; i++ { - fc.doFuzz(v.Index(i), 0) - } - return - } - v.Set(reflect.Zero(v.Type())) - case reflect.Struct: - for i := 0; i < v.NumField(); i++ { - fc.doFuzz(v.Field(i), 0) - } - case reflect.Chan: - fallthrough - case reflect.Func: - fallthrough - case reflect.Interface: - fallthrough - default: - panic(fmt.Sprintf("Can't handle %#v", v.Interface())) - } -} - -// tryCustom searches for custom handlers, and returns true iff it finds a match -// and successfully randomizes v. -func (fc *fuzzerContext) tryCustom(v reflect.Value) bool { - // First: see if we have a fuzz function for it. - doCustom, ok := fc.fuzzer.fuzzFuncs[v.Type()] - if !ok { - // Second: see if it can fuzz itself. - if v.CanInterface() { - intf := v.Interface() - if fuzzable, ok := intf.(Interface); ok { - fuzzable.Fuzz(Continue{fc: fc, Rand: fc.fuzzer.r}) - return true - } - } - // Finally: see if there is a default fuzz function. - doCustom, ok = fc.fuzzer.defaultFuzzFuncs[v.Type()] - if !ok { - return false - } - } - - switch v.Kind() { - case reflect.Ptr: - if v.IsNil() { - if !v.CanSet() { - return false - } - v.Set(reflect.New(v.Type().Elem())) - } - case reflect.Map: - if v.IsNil() { - if !v.CanSet() { - return false - } - v.Set(reflect.MakeMap(v.Type())) - } - default: - return false - } - - doCustom.Call([]reflect.Value{v, reflect.ValueOf(Continue{ - fc: fc, - Rand: fc.fuzzer.r, - })}) - return true -} - -// Interface represents an object that knows how to fuzz itself. Any time we -// find a type that implements this interface we will delegate the act of -// fuzzing itself. -type Interface interface { - Fuzz(c Continue) -} - -// Continue can be passed to custom fuzzing functions to allow them to use -// the correct source of randomness and to continue fuzzing their members. -type Continue struct { - fc *fuzzerContext - - // For convenience, Continue implements rand.Rand via embedding. - // Use this for generating any randomness if you want your fuzzing - // to be repeatable for a given seed. - *rand.Rand -} - -// Fuzz continues fuzzing obj. obj must be a pointer. -func (c Continue) Fuzz(obj interface{}) { - v := reflect.ValueOf(obj) - if v.Kind() != reflect.Ptr { - panic("needed ptr!") - } - v = v.Elem() - c.fc.doFuzz(v, 0) -} - -// FuzzNoCustom continues fuzzing obj, except that any custom fuzz function for -// obj's type will not be called and obj will not be tested for fuzz.Interface -// conformance. This applies only to obj and not other instances of obj's -// type. -func (c Continue) FuzzNoCustom(obj interface{}) { - v := reflect.ValueOf(obj) - if v.Kind() != reflect.Ptr { - panic("needed ptr!") - } - v = v.Elem() - c.fc.doFuzz(v, flagNoCustomFuzz) -} - -// RandString makes a random string up to 20 characters long. The returned string -// may include a variety of (valid) UTF-8 encodings. -func (c Continue) RandString() string { - return randString(c.Rand) -} - -// RandUint64 makes random 64 bit numbers. -// Weirdly, rand doesn't have a function that gives you 64 random bits. -func (c Continue) RandUint64() uint64 { - return randUint64(c.Rand) -} - -// RandBool returns true or false randomly. -func (c Continue) RandBool() bool { - return randBool(c.Rand) -} - -func fuzzInt(v reflect.Value, r *rand.Rand) { - v.SetInt(int64(randUint64(r))) -} - -func fuzzUint(v reflect.Value, r *rand.Rand) { - v.SetUint(randUint64(r)) -} - -func fuzzTime(t *time.Time, c Continue) { - var sec, nsec int64 - // Allow for about 1000 years of random time values, which keeps things - // like JSON parsing reasonably happy. - sec = c.Rand.Int63n(1000 * 365 * 24 * 60 * 60) - c.Fuzz(&nsec) - *t = time.Unix(sec, nsec) -} - -var fillFuncMap = map[reflect.Kind]func(reflect.Value, *rand.Rand){ - reflect.Bool: func(v reflect.Value, r *rand.Rand) { - v.SetBool(randBool(r)) - }, - reflect.Int: fuzzInt, - reflect.Int8: fuzzInt, - reflect.Int16: fuzzInt, - reflect.Int32: fuzzInt, - reflect.Int64: fuzzInt, - reflect.Uint: fuzzUint, - reflect.Uint8: fuzzUint, - reflect.Uint16: fuzzUint, - reflect.Uint32: fuzzUint, - reflect.Uint64: fuzzUint, - reflect.Uintptr: fuzzUint, - reflect.Float32: func(v reflect.Value, r *rand.Rand) { - v.SetFloat(float64(r.Float32())) - }, - reflect.Float64: func(v reflect.Value, r *rand.Rand) { - v.SetFloat(r.Float64()) - }, - reflect.Complex64: func(v reflect.Value, r *rand.Rand) { - panic("unimplemented") - }, - reflect.Complex128: func(v reflect.Value, r *rand.Rand) { - panic("unimplemented") - }, - reflect.String: func(v reflect.Value, r *rand.Rand) { - v.SetString(randString(r)) - }, - reflect.UnsafePointer: func(v reflect.Value, r *rand.Rand) { - panic("unimplemented") - }, -} - -// randBool returns true or false randomly. -func randBool(r *rand.Rand) bool { - if r.Int()&1 == 1 { - return true - } - return false -} - -type charRange struct { - first, last rune -} - -// choose returns a random unicode character from the given range, using the -// given randomness source. -func (r *charRange) choose(rand *rand.Rand) rune { - count := int64(r.last - r.first) - return r.first + rune(rand.Int63n(count)) -} - -var unicodeRanges = []charRange{ - {' ', '~'}, // ASCII characters - {'\u00a0', '\u02af'}, // Multi-byte encoded characters - {'\u4e00', '\u9fff'}, // Common CJK (even longer encodings) -} - -// randString makes a random string up to 20 characters long. The returned string -// may include a variety of (valid) UTF-8 encodings. -func randString(r *rand.Rand) string { - n := r.Intn(20) - runes := make([]rune, n) - for i := range runes { - runes[i] = unicodeRanges[r.Intn(len(unicodeRanges))].choose(r) - } - return string(runes) -} - -// randUint64 makes random 64 bit numbers. -// Weirdly, rand doesn't have a function that gives you 64 random bits. -func randUint64(r *rand.Rand) uint64 { - return uint64(r.Uint32())<<32 | uint64(r.Uint32()) -} |