.travis.yml: test that module is tidy (#254)
* .travis.yml: test that module is tidy
Removed "sudo: false". It has no effect.
Set GO111MODULE=on explicitly, which is needed in go1.11 but not in
later versions.
Added explicit test script.
* 'go test -mod=readonly ./...' will report an error if go.mod or
go.sum is incomplete, since no requirements may be added with
-mod=readonly.
* The rest of the script checks that go.mod and go.sum do not change
after running 'go mod tidy'. This verifies that there are no
redundant requirements or sums to remove.
Changed minimum Go version to 1.11.x. This is the oldest version
with support for modules. Older versions will still work in GOPATH
mode, but versions lower than 1.12 are unsupported by the Go, so
there's little point in adding additional test code for them.
diff --git a/.travis.yml b/.travis.yml
index 926a3f1..9e1ef4f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,9 +1,18 @@
-sudo: false
-
language: go
go_import_path: go.starlark.net
go:
- - 1.10.x
- - master
+ - "1.11.x"
+ - "master"
+
+env:
+ - "GO111MODULE=on"
+
+script:
+ - "go test -mod=readonly ./..."
+ - "cp go.mod go.mod.orig"
+ - "cp go.sum go.sum.orig"
+ - "go mod tidy"
+ - "diff go.mod.orig go.mod"
+ - "diff go.sum.orig go.sum"