golang.org/toolchain@v0.0.1-go1.999testmod.openbsd-ppc64

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.openbsd-ppc64"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

golang.org/toolchain@v0.0.1-go1.999testmod.openbsd-riscv64

-- .mod --
module golang.org/toolchain
-- .info --
{"Version":"v0.0.1-go1.999testmod.openbsd-riscv64"}
-- go.mod --
module golang.org/toolchain
-- bin/go --
#!/bin/sh
echo go1.999testmod here!
-- bin/gofmt --
echo i am unused

# Again, with toolchains.

# go get toolchain should find go1.999testmod.
go get toolchain
stderr '^go: upgraded toolchain go1.99rc1 => go1.999testmod$'
grep 'go 1.23.9' go.mod
grep 'toolchain go1.999testmod' go.mod

# go get toolchain@go1.23 should use the latest Go 1.23
go get toolchain@go1.23
stderr '^go: removed toolchain go1.999testmod$'
grep 'go 1.23.9' go.mod
! grep 'toolchain go1.23.9' go.mod  # implied

# GOTOOLCHAIN from network
[!exec:/bin/sh] stop 'the fake proxy serves shell scripts instead of binaries'
env GOTOOLCHAIN=go1.999testmod
go version
stderr 'go: downloading go1.999testmod \(.*/.*\)'

# GOTOOLCHAIN cached from network
go version
! stderr downloading
stdout go1.999testmod

# GOTOOLCHAIN with GOSUMDB enabled but at a bad URL should operate in cache and not try badurl
env oldsumdb=$GOSUMDB

	{"1.24.0", Version{"1", "24", "0", "", ""}},
	{"1.999testmod", Version{"1", "999", "", "testmod", ""}},
	{"1.99999999999999999", Version{"1", "99999999999999999", "", "", ""}},
}

func TestLang(t *testing.T) { test1(t, langTests, "Lang", Lang) }

var langTests = []testCase1[string, string]{
	{"1.2rc3", "1.2"},
	{"1.2.3", "1.2"},
	{"1.2", "1.2"},
	{"1", "1"},
	{"1.999testmod", "1.999"},
}

	{"1.2rc3", "1.2"},
	{"1.2.3", "1.2"},
	{"1.2", "1.2"},
	{"1", "1"},
	{"1.999testmod", "1.999"},
}

func TestIsLang(t *testing.T) { test1(t, isLangTests, "IsLang", IsLang) }

var isLangTests = []testCase1[string, bool]{
	{"1.2rc3", false},
	{"1.2.3", false},
	{"1.999testmod", false},
	{"1.22", true},
	{"1.21", true},
	{"1.20", false}, // == 1.20.0
	{"1.19", false}, // == 1.20.0

# go version required for rsc.io/future, not fail.
go get .
stderr '^go: module rsc.io/future@v1.0.0 requires go >= 1.999; switching to go1.999testmod$'
stderr '^go: upgraded go 1.21 => 1.999$'
stderr '^go: added toolchain go1.999testmod$'


# Now, the various 'go mod' subcommands should succeed.

go mod download

go mod verify

go mod graph


-- go.mod --
module example

	{"go1.2.3", "go1.2"},
	{"go1.2", "go1.2"},
	{"go1", "go1"},
	{"go222", "go222.0"},
	{"go1.999testmod", "go1.999"},
}

func TestIsValid(t *testing.T) { test1(t, isValidTests, "IsValid", IsValid) }

var isValidTests = []testCase1[string, bool]{
	{"", false},
	{"1.2.3", false},
	{"go1.2rc3", true},
	{"go1.2.3", true},
	{"go1.999testmod", true},
	{"go1.600+auto", false},
	{"go1.22", true},
	{"go1.21.0", true},