Text file
src/cmd/go/testdata/script/mod_download_exec_toolchain.txt
1env TESTGO_VERSION=go1.21
2env TESTGO_VERSION_SWITCH=switch
3
4# First, test 'go mod download' outside of a module.
5#
6# There is no go.mod file into which we can record the selected toolchain,
7# so unfortunately these version switches won't be as reproducible as other
8# go commands, but that's still preferable to failing entirely or downloading
9# a module zip that we don't understand.
10
11# GOTOOLCHAIN=auto should run the newer toolchain
12env GOTOOLCHAIN=auto
13go mod download rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
14stderr '^go: rsc.io/needall@v0.0.1 requires go >= 1.23; switching to go1.23.9$'
15! stderr '\(running'
16
17# GOTOOLCHAIN=min+auto should run the newer toolchain
18env GOTOOLCHAIN=go1.21+auto
19go mod download rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
20stderr '^go: rsc.io/needall@v0.0.1 requires go >= 1.23; switching to go1.23.9$'
21! stderr '\(running'
22
23# GOTOOLCHAIN=go1.21 should NOT run the newer toolchain
24env GOTOOLCHAIN=go1.21
25! go mod download rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
26! stderr switching
27stderr 'rsc.io/needgo122@v0.0.1 requires go >= 1.22'
28stderr 'rsc.io/needgo123@v0.0.1 requires go >= 1.23'
29stderr 'rsc.io/needall@v0.0.1 requires go >= 1.23'
30stderr 'requires go >= 1.23'
31! stderr 'requires go >= 1.21' # that's us!
32
33
34# JSON output should be emitted exactly once,
35# and non-JSON output should go to stderr instead of stdout.
36env GOTOOLCHAIN=auto
37go mod download -json rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
38stderr '^go: rsc.io/needall@v0.0.1 requires go >= 1.23; switching to go1.23.9$'
39! stderr '\(running'
40stdout -count=1 '"Path": "rsc.io/needgo121",'
41stdout -count=1 '"Path": "rsc.io/needgo122",'
42stdout -count=1 '"Path": "rsc.io/needgo123",'
43stdout -count=1 '"Path": "rsc.io/needall",'
44
45# GOTOOLCHAIN=go1.21 should write the errors in the JSON Error fields, not to stderr.
46env GOTOOLCHAIN=go1.21
47! go mod download -json rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
48! stderr switching
49stdout -count=1 '"Error": "rsc.io/needgo122@v0.0.1 requires go .*= 1.22 \(running go 1.21; GOTOOLCHAIN=go1.21\)"'
50stdout -count=1 '"Error": "rsc.io/needgo123@v0.0.1 requires go .*= 1.23 \(running go 1.21; GOTOOLCHAIN=go1.21\)"'
51stdout -count=1 '"Error": "rsc.io/needall@v0.0.1 requires go .*= 1.23 \(running go 1.21; GOTOOLCHAIN=go1.21\)"'
52! stdout '"Error": "rsc.io/needgo121' # We can handle this one.
53! stderr .
54
55
56# Within a module, 'go mod download' of explicit versions should upgrade if
57# needed to perform the download, but should not change the main module's
58# toolchain version (because the downloaded modules are still not required by
59# the main module).
60
61cd example
62cp go.mod go.mod.orig
63
64env GOTOOLCHAIN=auto
65go mod download rsc.io/needgo121@latest rsc.io/needgo122@latest rsc.io/needgo123@latest rsc.io/needall@latest
66stderr '^go: rsc.io/needall@v0.0.1 requires go >= 1.23; switching to go1.23.9$'
67! stderr '\(running'
68cmp go.mod go.mod.orig
69
70
71# However, 'go mod download' without arguments should fix up the
72# 'go' and 'toolchain' lines to be consistent with the existing
73# requirements in the module graph.
74
75go mod edit -require=rsc.io/needall@v0.0.1
76cp go.mod go.mod.121
77
78# If an upgrade is needed, GOTOOLCHAIN=go1.21 should cause
79# the command to fail without changing go.mod.
80
81env GOTOOLCHAIN=go1.21
82! go mod download
83stderr 'rsc.io/needall@v0.0.1 requires go >= 1.23'
84! stderr switching
85cmp go.mod go.mod.121
86
87# If an upgrade is needed, GOTOOLCHAIN=auto should perform
88# the upgrade and record the resulting toolchain version.
89
90env GOTOOLCHAIN=auto
91go mod download
92stderr '^go: module rsc.io/needall@v0.0.1 requires go >= 1.23; switching to go1.23.9$'
93cmp go.mod go.mod.final
94
95
96-- example/go.mod --
97module example
98
99go 1.21
100-- example/go.mod.final --
101module example
102
103go 1.23
104
105toolchain go1.23.9
106
107require rsc.io/needall v0.0.1
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