github.com/0xKiwi/rules_go@v0.24.3/tests/integration/gazelle/gazelle_test.go (about)

     1  // Copyright 2020 The Bazel Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //    http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gazelle_test
    16  
    17  import (
    18  	"io/ioutil"
    19  	"strings"
    20  	"testing"
    21  
    22  	"github.com/bazelbuild/rules_go/go/tools/bazel_testing"
    23  )
    24  
    25  func TestMain(m *testing.M) {
    26  	bazel_testing.TestMain(m, bazel_testing.Args{
    27  		Main: `
    28  -- BUILD.bazel --
    29  load("@bazel_gazelle//:def.bzl", "gazelle")
    30  
    31  # gazelle:prefix example.com/g
    32  gazelle(
    33      name = "gazelle",
    34  )
    35  -- hello.go --
    36  package hello
    37  `,
    38  		WorkspaceSuffix: `
    39  load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
    40  
    41  gazelle_dependencies()
    42  `,
    43  	})
    44  }
    45  
    46  func TestUpdate(t *testing.T) {
    47  	if err := bazel_testing.RunBazel("run", "//:gazelle"); err != nil {
    48  		t.Fatal(err)
    49  	}
    50  	data, err := ioutil.ReadFile("BUILD.bazel")
    51  	if err != nil {
    52  		t.Fatal(err)
    53  	}
    54  	got := strings.TrimSpace(string(data))
    55  	want := strings.TrimSpace(`
    56  load("@io_bazel_rules_go//go:def.bzl", "go_library")
    57  load("@bazel_gazelle//:def.bzl", "gazelle")
    58  
    59  # gazelle:prefix example.com/g
    60  gazelle(
    61      name = "gazelle",
    62  )
    63  
    64  go_library(
    65      name = "go_default_library",
    66      srcs = ["hello.go"],
    67      importpath = "example.com/g",
    68      visibility = ["//visibility:public"],
    69  )
    70  `)
    71  	if got != want {
    72  		t.Errorf("got:\n%s\n\nwant:\n%s", got, want)
    73  	}
    74  }