1 files changed, 19 insertions, 0 deletions
diff --git a/src/cmd/go/internal/gover/toolchain_test.go b/src/cmd/go/internal/gover/toolchain_test.go
new file mode 100644
index 0000000..d1c22fb
--- /dev/null
+++ b/src/cmd/go/internal/gover/toolchain_test.go
@@ -0,0 +1,19 @@
+// Copyright 2023 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.
+
+package gover
+
+import "testing"
+
+func TestFromToolchain(t *testing.T) { test1(t, fromToolchainTests, "FromToolchain", FromToolchain) }
+
+var fromToolchainTests = []testCase1[string, string]{
+	{"go1.2.3", "1.2.3"},
+	{"1.2.3", ""},
+	{"go1.2.3+bigcorp", ""},
+	{"go1.2.3-bigcorp", "1.2.3"},
+	{"go1.2.3-bigcorp more text", "1.2.3"},
+	{"gccgo-go1.23rc4", ""},
+	{"gccgo-go1.23rc4-bigdwarf", ""},
+}