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# go doc should find module documentation
env GO111MODULE=on
env GOFLAGS=-mod=mod
[short] skip
# Check when module x is inside GOPATH/src.
go doc y
stdout 'Package y is.*alphabet'
stdout 'import "x/y"'
go doc x/y
stdout 'Package y is.*alphabet'
! go doc quote.Hello
stderr 'doc: symbol quote is not a type' # because quote is not in local cache
go list rsc.io/quote # now it is
go doc quote.Hello
stdout 'Hello returns a greeting'
go doc quote
stdout 'Package quote collects pithy sayings.'
# Double-check when module x is outside GOPATH/src.
env GOPATH=$WORK/emptygopath
go doc x/y
stdout 'Package y is.*alphabet'
go doc y
stdout 'Package y is.*alphabet'
# Triple-check when module x is outside GOPATH/src,
# but other packages with same import paths are in GOPATH/src.
# Since go doc is running in module mode here, packages in active module
# should be preferred over packages in GOPATH. See golang.org/issue/28992.
env GOPATH=$WORK/gopath2
go doc x/y
! stdout 'Package y is.*GOPATH'
stdout 'Package y is.*alphabet'
go doc rsc.io/quote
! stdout 'Package quote is located in a GOPATH workspace.'
stdout 'Package quote collects pithy sayings.'
# Check that a sensible error message is printed when a package is not found.
env GOPROXY=off
! go doc example.com/hello
stderr '^doc: cannot find module providing package example.com/hello: module lookup disabled by GOPROXY=off$'
# When in a module with a vendor directory, doc should use the vendored copies
# of the packages. 'std' and 'cmd' are convenient examples of such modules.
#
# When in those modules, the "// import" comment should refer to the same import
# path used in source code, not to the absolute path relative to GOROOT.
cd $GOROOT/src
env GOFLAGS=
env GOWORK=off
go doc cryptobyte
stdout '// import "golang.org/x/crypto/cryptobyte"'
cd $GOROOT/src/cmd/go
go doc modfile
stdout '// import "golang.org/x/mod/modfile"'
# When outside of the 'std' module, its vendored packages
# remain accessible using the 'vendor/' prefix, but report
# the correct "// import" comment as used within std.
cd $GOPATH
go doc vendor/golang.org/x/crypto/cryptobyte
stdout '// import "vendor/golang.org/x/crypto/cryptobyte"'
go doc cmd/vendor/golang.org/x/mod/modfile
stdout '// import "cmd/vendor/golang.org/x/mod/modfile"'
-- go.mod --
module x
require rsc.io/quote v1.5.2
-- y/y.go --
// Package y is the next to last package of the alphabet.
package y
-- x.go --
package x
-- $WORK/gopath2/src/x/y/y.go --
// Package y is located in a GOPATH workspace.
package y
-- $WORK/gopath2/src/rsc.io/quote/quote.go --
// Package quote is located in a GOPATH workspace.
package quote
// Hello is located in a GOPATH workspace.
func Hello() string { return "" }
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