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// 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)
}
}
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