diff --git a/src/cmd/go/testdata/script/mod_get_legacy.txt b/src/cmd/go/testdata/script/mod_get_legacy.txt
new file mode 100644
index 00000000000000..28a820e97b795f
--- /dev/null
+++ b/src/cmd/go/testdata/script/mod_get_legacy.txt
@@ -0,0 +1,57 @@
+# This test was converted from a test in vendor_test.go (which no longer exists).
+# That seems to imply that it's about vendoring semantics, but the test doesn't
+# use 'go -mod=vendor' (and none of the fetched repos have vendor folders).
+# The test still seems to be useful as a test of direct-mode go get.
+
+[short] skip
+[!exec:git] skip
+
+env GOPATH=$WORK/tmp/d1
+go get vcs-test.golang.org/git/modlegacy1-old.git/p1
+go list -f '{{.Deps}}' vcs-test.golang.org/git/modlegacy1-old.git/p1
+stdout 'new.git/p2' # old/p1 should depend on new/p2
+! stdout new.git/v2/p2 # old/p1 should NOT depend on new/v2/p2
+go build vcs-test.golang.org/git/modlegacy1-old.git/p1 vcs-test.golang.org/git/modlegacy1-new.git/p1
+! stdout .
+
+env GOPATH=$WORK/tmp/d2
+
+rm $GOPATH
+go get github.com/rsc/vgotest5
+go get github.com/rsc/vgotest4
+go get github.com/myitcv/vgo_example_compat
+
+rm $GOPATH
+go get github.com/rsc/vgotest4
+go get github.com/rsc/vgotest5
+go get github.com/myitcv/vgo_example_compat
+
+rm $GOPATH
+go get github.com/rsc/vgotest4 github.com/rsc/vgotest5
+go get github.com/myitcv/vgo_example_compat
+
+rm $GOPATH
+go get github.com/rsc/vgotest5 github.com/rsc/vgotest4
+go get github.com/myitcv/vgo_example_compat
+
+rm $GOPATH
+go get github.com/myitcv/vgo_example_compat
+go get github.com/rsc/vgotest5 github.com/rsc/vgotest4
+
+rm $GOPATH
+go get github.com/myitcv/vgo_example_compat github.com/rsc/vgotest4 github.com/rsc/vgotest5
+
+rm $GOPATH
+go get github.com/myitcv/vgo_example_compat github.com/rsc/vgotest5 github.com/rsc/vgotest4
+
+rm $GOPATH
+go get github.com/rsc/vgotest4 github.com/myitcv/vgo_example_compat github.com/rsc/vgotest5
+
+rm $GOPATH
+go get github.com/rsc/vgotest4 github.com/rsc/vgotest5 github.com/myitcv/vgo_example_compat
+
+rm $GOPATH
+go get github.com/rsc/vgotest5 github.com/myitcv/vgo_example_compat github.com/rsc/vgotest4
+
+rm $GOPATH
+go get github.com/rsc/vgotest5 github.com/rsc/vgotest4 github.com/myitcv/vgo_example_compat
\ No newline at end of file
diff --git a/src/cmd/go/vendor_test.go b/src/cmd/go/vendor_test.go
deleted file mode 100644
index 9d568b906a91e6..00000000000000
--- a/src/cmd/go/vendor_test.go
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Tests for vendoring semantics.
-
-package main_test
-
-import (
-	"internal/testenv"
-	"os"
-	"testing"
-)
-
-func TestLegacyModGet(t *testing.T) {
-	testenv.MustHaveExternalNetwork(t)
-	testenv.MustHaveExecPath(t, "git")
-
-	tg := testgo(t)
-	defer tg.cleanup()
-	tg.makeTempdir()
-	tg.setenv("GOPATH", tg.path("d1"))
-	tg.run("get", "vcs-test.golang.org/git/modlegacy1-old.git/p1")
-	tg.run("list", "-f", "{{.Deps}}", "vcs-test.golang.org/git/modlegacy1-old.git/p1")
-	tg.grepStdout("new.git/p2", "old/p1 should depend on new/p2")
-	tg.grepStdoutNot("new.git/v2/p2", "old/p1 should NOT depend on new/v2/p2")
-	tg.run("build", "vcs-test.golang.org/git/modlegacy1-old.git/p1", "vcs-test.golang.org/git/modlegacy1-new.git/p1")
-
-	tg.setenv("GOPATH", tg.path("d2"))
-
-	tg.must(os.RemoveAll(tg.path("d2")))
-	tg.run("get", "github.com/rsc/vgotest5")
-	tg.run("get", "github.com/rsc/vgotest4")
-	tg.run("get", "github.com/myitcv/vgo_example_compat")
-
-	if testing.Short() {
-		return
-	}
-
-	tg.must(os.RemoveAll(tg.path("d2")))
-	tg.run("get", "github.com/rsc/vgotest4")
-	tg.run("get", "github.com/rsc/vgotest5")
-	tg.run("get", "github.com/myitcv/vgo_example_compat")
-
-	tg.must(os.RemoveAll(tg.path("d2")))
-	tg.run("get", "github.com/rsc/vgotest4", "github.com/rsc/vgotest5")
-	tg.run("get", "github.com/myitcv/vgo_example_compat")
-
-	tg.must(os.RemoveAll(tg.path("d2")))
-	tg.run("get", "github.com/rsc/vgotest5", "github.com/rsc/vgotest4")
-	tg.run("get", "github.com/myitcv/vgo_example_compat")
-
-	tg.must(os.RemoveAll(tg.path("d2")))
-	tg.run("get", "github.com/myitcv/vgo_example_compat")
-	tg.run("get", "github.com/rsc/vgotest4", "github.com/rsc/vgotest5")
-
-	pkgs := []string{"github.com/myitcv/vgo_example_compat", "github.com/rsc/vgotest4", "github.com/rsc/vgotest5"}
-	for i := 0; i < 3; i++ {
-		for j := 0; j < 3; j++ {
-			for k := 0; k < 3; k++ {
-				if i == j || i == k || k == j {
-					continue
-				}
-				tg.must(os.RemoveAll(tg.path("d2")))
-				tg.run("get", pkgs[i], pkgs[j], pkgs[k])
-			}
-		}
-	}
-}