// 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) } }