diff --git a/cmd/testscript/testdata/simple.txt b/cmd/testscript/testdata/simple.txt
deleted file mode 100644
index 0fca5851..00000000
--- a/cmd/testscript/testdata/simple.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-# With .gomodproxy supporting files, any GOPROXY from the
-# environment should be overridden by the test proxy.
-env GOPROXY=0.1.2.3
-
-
-testscript -v file.txt
-stdout 'example.com/mod'
-! stderr .+
-
--- file.txt --
-go get -d fruit.com
-go list -m
-stdout 'example.com/mod'
-go list fruit.com/...
-stdout 'fruit.com/fruit'
-stdout 'fruit.com/coretest'
-
--- go.mod --
-module example.com/mod
-
-require fruit.com v1.0.0
-
--- .gomodproxy/fruit.com_v1.0.0/.mod --
-module fruit.com
-
--- .gomodproxy/fruit.com_v1.0.0/.info --
-{"Version":"v1.0.0","Time":"2018-10-22T18:45:39Z"}
-
--- .gomodproxy/fruit.com_v1.0.0/go.mod --
-module fruit.com
-
--- .gomodproxy/fruit.com_v1.0.0/fruit/fruit.go --
-package fruit
-
-const Apple = "apple"
--- .gomodproxy/fruit.com_v1.0.0/coretest/coretest.go --
-// package coretest becomes a candidate for the missing
-// core import in main above
-package coretest
-
-const Mandarin = "mandarin"
diff --git a/cmd/testscript/testdata/update.txt b/cmd/testscript/testdata/update.txt
index 81332474..ef74c8ed 100644
--- a/cmd/testscript/testdata/update.txt
+++ b/cmd/testscript/testdata/update.txt
@@ -11,54 +11,11 @@ stderr 'cannot use -u when reading from stdin'
 # a regular file
 testscript -u - in.txt
 cmp in.txt res.txt
-
+-- stdout.txt --
+hello
 -- in.txt --
 exec printf 'hello\n'
 cmp stdout stdout.txt
-
--- .gomodproxy/fruit.com_v1.0.0/.mod --
-module fruit.com
-
--- .gomodproxy/fruit.com_v1.0.0/.info --
-{"Version":"v1.0.0","Time":"2018-10-22T18:45:39Z"}
-
--- .gomodproxy/fruit.com_v1.0.0/go.mod --
-module fruit.com
-
--- stdout.txt --
-goodbye
--- .gomodproxy/fruit.com_v1.0.0/fruit/fruit.go --
-package fruit
-
-const Apple = "apple"
--- .gomodproxy/fruit.com_v1.0.0/coretest/coretest.go --
-// package coretest becomes a candidate for the missing
-// core import in main above
-package coretest
-
-const Mandarin = "mandarin"
 -- res.txt --
 exec printf 'hello\n'
 cmp stdout stdout.txt
-
--- .gomodproxy/fruit.com_v1.0.0/.mod --
-module fruit.com
-
--- .gomodproxy/fruit.com_v1.0.0/.info --
-{"Version":"v1.0.0","Time":"2018-10-22T18:45:39Z"}
-
--- .gomodproxy/fruit.com_v1.0.0/go.mod --
-module fruit.com
-
--- stdout.txt --
-hello
--- .gomodproxy/fruit.com_v1.0.0/fruit/fruit.go --
-package fruit
-
-const Apple = "apple"
--- .gomodproxy/fruit.com_v1.0.0/coretest/coretest.go --
-// package coretest becomes a candidate for the missing
-// core import in main above
-package coretest
-
-const Mandarin = "mandarin"