This repository uses [eslint](https://eslint.org/) to format TS files,
[stylelint](https://stylelint.io/) to format CSS files, and
[prettier](https://prettier.io/) to format TS, CSS, Markdown, and YAML files.

See the style guides:

- [TypeScript](https://google.github.io/styleguide/tsguide.html)
- [CSS](https://go.dev/wiki/CSSStyleGuide)

It is encouraged that all TS and CSS code be run through formatters before

[!fuzz] skip

# Tests that a crash caused by a mutator-discovered input writes the bad input
# to testdata, and fails+reports correctly. This tests the end-to-end behavior
# of the mutator finding a crash while fuzzing, adding it as a regression test
# to the seed corpus in testdata, and failing the next time the test is run.

[short] skip
env GOCACHE=$WORK/cache

# Running the seed corpus for all of the targets should pass the first

! grep toolchain go.work

# work init with newer modules should bump go,
# including updating to a newer toolchain as needed.
# Because work init writes the current toolchain as the go version,
# it writes the bumped go version, not the max of the used modules.
env TESTGO_VERSION=go1.21
env TESTGO_VERSION_SWITCH=switch
rm go.work
env GOTOOLCHAIN=local
! go work init ./m1_22_0

# Write a crashing input to the cache
mkdir $GOCACHE/fuzz/example.com/x/FuzzWithCache
cp cache-file $GOCACHE/fuzz/example.com/x/FuzzWithCache/1

# Test that fuzzing a target with a failure in the cache prints the crash
# and writes this as a "new" crash to testdata/fuzz
! go test -fuzz=FuzzWithCache -run=FuzzWithCache -fuzztime=1x
! stdout ^ok
stdout 'Failing input written to testdata[/\\]fuzz[/\\]FuzzWithCache[/\\]'
stdout FAIL

exec $GOBIN/mtime errors2.test
cp stdout errors2_mod_time.txt
exec $GOBIN/before start_time.txt errors2_mod_time.txt

-- go.mod --
module m

go 1.16
-- now/now.go --
// Writes time.Now() to a file
package main

import (
	"encoding/json"
	"fmt"
	"os"
	"time"
)

func main() {
	if err := json.NewEncoder(os.Stdout).Encode(time.Now()); err != nil {

[!fuzz] skip

# Test basic fuzzing mutator behavior.
#
# fuzz_test.go has two fuzz targets (FuzzA, FuzzB) which both add a seed value.
# Each fuzz function writes the input to a log file. The coordinator and worker
# use separate log files. check_logs.go verifies that the coordinator only
# tests seed values and the worker tests mutated values on the fuzz target.

[short] skip
env GOCACHE=$WORK/cache

// For 8-bit divides, we just do a direct 9-bit by 8-bit multiply.
(Div8u x (Const8 [c])) && umagicOK8(c) =>
  (Trunc32to8
    (Rsh32Ux64 <typ.UInt32>
      (Mul32 <typ.UInt32>
        (Const32 <typ.UInt32> [int32(1<<8+umagic8(c).m)])
        (ZeroExt8to32 x))
      (Const64 <typ.UInt64> [8+umagic8(c).s])))

// For 16-bit divides on 64-bit machines, we do a direct 17-bit by 16-bit multiply.

# a worker process terminates without communicating the crashing input back
# to the coordinator.

[short] skip
env GOCACHE=$WORK/cache

# Start fuzzing. The worker crashes after 100 iterations.
# The fuzz function writes the crashing input to "want" before exiting.
# The fuzzing engine reconstructs the crashing input and saves it to testdata.
! exists want
! go test -fuzz=. -parallel=1 -fuzztime=110x -fuzzminimizetime=10x -v

# The @latest query is not special with respect to retractions.
go list -m -f '{{.Version}}{{with .Retracted}} retracted{{end}}' example.com/retract/self/prev@<v1.10
stdout '^v1.1.0$'

# 'go list -m -versions' hides retracted versions.
go list -m -versions example.com/retract
stdout '^example.com/retract v1.0.0-good v1.1.0$'

# 'go list -m -retracted -versions' shows retracted versions.
go list -m -retracted -versions example.com/retract

pkg crypto/rsa, type PrivateKey struct
pkg crypto/rsa, type PrivateKey struct, D *big.Int
pkg crypto/rsa, type PrivateKey struct, Precomputed PrecomputedValues
pkg crypto/rsa, type PrivateKey struct, Primes []*big.Int
pkg crypto/rsa, type PrivateKey struct, embedded PublicKey
pkg crypto/rsa, type PublicKey struct
pkg crypto/rsa, type PublicKey struct, E int
pkg crypto/rsa, type PublicKey struct, N *big.Int