mod_get_go_directive_implicit.txt

     1  # go.dev/issue/63507: in a module whose go.mod has no go directive, 'go get'
     2  # synthesizes the version of the go command itself internally. The change must
     3  # be reported against the version the module implicitly had, go 1.16, not
     4  # against whichever go command happened to run.
     5  
     6  env TESTGO_VERSION=go1.99
     7  
     8  # No go directive: 'go get go@1.20' writes one. The module was implicitly at
     9  # go 1.16, so this is an upgrade from 1.16, not a downgrade from go1.99.
    10  # Moving past 1.17 expands the requirements, so the existing note applies.
    11  go get go@1.20
    12  stderr '^go: upgraded implicit go 1.16 => 1.20$'
    13  stderr 'note: expanded dependencies to upgrade to go 1.17 or higher'
    14  ! stderr 'downgraded'
    15  grep '^go 1.20$' go.mod
    16  
    17  # The same holds when the new version is the version of the go command: the
    18  # module still moves from the implicit go 1.16, so the change is reported.
    19  cp go.mod.none go.mod
    20  go get go@1.99
    21  stderr '^go: upgraded implicit go 1.16 => 1.99$'
    22  grep '^go 1.99$' go.mod
    23  ! grep '^toolchain' go.mod
    24  
    25  # Below the implicit version is a real downgrade.
    26  cp go.mod.none go.mod
    27  go get go@1.15
    28  stderr '^go: downgraded implicit go 1.16 => 1.15$'
    29  grep '^go 1.15$' go.mod
    30  
    31  # Writing the implicit version explicitly changes nothing, so it stays silent.
    32  cp go.mod.none go.mod
    33  go get go@1.16
    34  ! stderr 'implicit'
    35  ! stderr 'go: (added|upgraded|downgraded) go'
    36  grep '^go 1.16$' go.mod
    37  
    38  # A version go.mod really declared is reported without 'implicit', including
    39  # when it declares the same 1.16 that the implicit version would have been.
    40  cp go.mod.116 go.mod
    41  go get go@1.20
    42  stderr '^go: upgraded go 1.16 => 1.20$'
    43  ! stderr 'implicit'
    44  
    45  cp go.mod.high go.mod
    46  go get go@1.20
    47  stderr '^go: downgraded go 1.25 => 1.20$'
    48  
    49  cp go.mod.low go.mod
    50  go get go@1.20
    51  stderr '^go: upgraded go 1.18 => 1.20$'
    52  
    53  # This is not specific to 'go get go@version'. Getting a package writes the
    54  # directive as a side effect, and that is now reported too.
    55  cp go.mod.none go.mod
    56  go get rsc.io/quote@v1.5.2
    57  stderr '^go: upgraded implicit go 1.16 => 1.99$'
    58  
    59  -- go.mod --
    60  module example.com/m
    61  
    62  -- go.mod.none --
    63  module example.com/m
    64  
    65  -- go.mod.116 --
    66  module example.com/m
    67  go 1.16
    68  
    69  -- go.mod.high --
    70  module example.com/m
    71  go 1.25
    72  
    73  -- go.mod.low --
    74  module example.com/m
    75  go 1.18
    76
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