# If 'go get -u' finds an upgrade candidate that isn't viable,
# but some other upgraded module's requirement moves past it
# (for example, to a higher prerelease), then we should accept
# the transitive upgrade instead of trying lower roots.

go get -v -u . example.net/b@v0.1.0
cmp go.mod go.mod.want

-- go.mod --
module example

go 1.17

require (
	example.net/a v0.1.0
	example.net/b v0.1.0
	example.net/c v0.1.0
)

replace (
	example.net/a v0.1.0 => ./a1
	example.net/a v0.2.0-pre => ./a2p
	example.net/b v0.1.0 => ./b
	example.net/b v0.2.0 => ./b
	example.net/c v0.1.0 => ./c1
	example.net/c v0.2.0 => ./c2
)
-- go.mod.want --
module example

go 1.17

require (
	example.net/a v0.2.0-pre
	example.net/b v0.1.0
	example.net/c v0.2.0
)

replace (
	example.net/a v0.1.0 => ./a1
	example.net/a v0.2.0-pre => ./a2p
	example.net/b v0.1.0 => ./b
	example.net/b v0.2.0 => ./b
	example.net/c v0.1.0 => ./c1
	example.net/c v0.2.0 => ./c2
)
-- example.go --
package example

import (
	_ "example.net/a"
	_ "example.net/b"
	_ "example.net/c"
)
-- a1/go.mod --
module example.net/a

go 1.17

require example.net/b v0.2.0
-- a1/a.go --
package a

import _ "example.net/b"
-- a2p/go.mod --
module example.net/a

go 1.17
-- a2p/a.go --
package a
-- b/go.mod --
module example.net/b

go 1.17
-- b/b.go --
package b
-- c1/go.mod --
module example.net/c

go 1.17

require example.net/a v0.1.0
-- c1/c.go --
package c

import _ "example.net/a"
-- c2/go.mod --
module example.net/c

go 1.17

require example.net/a v0.2.0-pre
-- c2/c.go --
package c

import _ "example.net/c"