1 files changed, 107 insertions, 0 deletions
diff --git a/tests/integration/go_bin_runner/go_bin_runner_test.go b/tests/integration/go_bin_runner/go_bin_runner_test.go
new file mode 100644
index 00000000..2cd42660
--- /dev/null
+++ b/tests/integration/go_bin_runner/go_bin_runner_test.go
@@ -0,0 +1,107 @@
+// Copyright 2023 The Bazel Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package go_bin_runner_test
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/bazelbuild/rules_go/go/tools/bazel_testing"
+)
+
+func TestMain(m *testing.M) {
+	bazel_testing.TestMain(m, bazel_testing.Args{
+		Main: `
+-- BUILD.bazel --
+sh_binary(
+    name = "go_version",
+    srcs = ["go_version.sh"],
+    env = {"GO": "$(rlocationpath @io_bazel_rules_go//go)"},
+    data = ["@io_bazel_rules_go//go"],
+    deps = ["@bazel_tools//tools/bash/runfiles"],
+)
+
+genrule(
+    name = "foo",
+    outs = ["bar"],
+    tools = ["@io_bazel_rules_go//go"],
+    cmd = "$(location @io_bazel_rules_go//go) > $@",
+)
+
+-- go_version.sh --
+# --- begin runfiles.bash initialization v2 ---
+# Copy-pasted from the Bazel Bash runfiles library v2.
+set -uo pipefail; f=bazel_tools/tools/bash/runfiles/runfiles.bash
+source "${RUNFILES_DIR:-/dev/null}/$f" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "${RUNFILES_MANIFEST_FILE:-/dev/null}" | cut -f2- -d' ')" 2>/dev/null || \
+  source "$0.runfiles/$f" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "$0.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+  source "$(grep -sm1 "^$f " "$0.exe.runfiles_manifest" | cut -f2- -d' ')" 2>/dev/null || \
+  { echo>&2 "ERROR: cannot find $f"; exit 1; }; f=; set -e
+# --- end runfiles.bash initialization v2 ---
+
+$(rlocation "$GO") version
+`})
+}
+
+func TestGoEnv(t *testing.T) {
+	// Set an invalid GOROOT to test that the //go target still finds the expected hermetic GOROOT.
+	os.Setenv("GOROOT", "invalid")
+
+	bazelInfoOut, err := bazel_testing.BazelOutput("info", "output_base")
+	if err != nil {
+		t.Fatal(err)
+	}
+	outputBase := strings.TrimSpace(string(bazelInfoOut))
+
+	goEnvOut, err := bazel_testing.BazelOutput("run", "@io_bazel_rules_go//go", "--", "env", "GOROOT")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	goRoot := strings.TrimSpace(string(goEnvOut))
+	if goRoot != filepath.Join(outputBase, "external", "go_sdk") {
+		t.Fatalf("GOROOT was not equal to %s", filepath.Join(outputBase, "external", "go_sdk"))
+	}
+}
+
+func TestGoVersionFromScript(t *testing.T) {
+	err := os.Chmod("go_version.sh", 0755)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	goVersionOut, err := bazel_testing.BazelOutput("run", "//:go_version")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if !strings.HasPrefix(string(goVersionOut), "go version go1.") {
+		t.Fatalf("go version output did not start with \"go version go1.\": %s", string(goVersionOut))
+	}
+}
+
+func TestNoGoInExec(t *testing.T) {
+	_, err := bazel_testing.BazelOutput("build", "//:foo")
+	if err == nil {
+		t.Fatal("expected build to fail")
+	}
+	stderr := string(err.(*bazel_testing.StderrExitError).Err.Stderr)
+	if !strings.Contains(stderr, "//go is only meant to be used with 'bazel run'") {
+		t.Fatalf("expected \"//go is only meant to be used with 'bazel run'\" in stderr, got %s", stderr)
+	}
+}