label_test.go

Documentation: github.com/bazelbuild/bazel-gazelle/label

     1  /* Copyright 2017 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  
    16  package label
    17  
    18  import (
    19  	"reflect"
    20  	"testing"
    21  )
    22  
    23  func TestLabelString(t *testing.T) {
    24  	for _, spec := range []struct {
    25  		l    Label
    26  		want string
    27  	}{
    28  		{
    29  			l:    Label{Name: "foo"},
    30  			want: "//:foo",
    31  		}, {
    32  			l:    Label{Pkg: "foo/bar", Name: "baz"},
    33  			want: "//foo/bar:baz",
    34  		}, {
    35  			l:    Label{Pkg: "foo/bar", Name: "bar"},
    36  			want: "//foo/bar",
    37  		}, {
    38  			l:    Label{Repo: "com_example_repo", Pkg: "foo/bar", Name: "baz"},
    39  			want: "@com_example_repo//foo/bar:baz",
    40  		}, {
    41  			l:    Label{Repo: "com_example_repo", Pkg: "foo/bar", Name: "bar"},
    42  			want: "@com_example_repo//foo/bar",
    43  		}, {
    44  			l:    Label{Relative: true, Name: "foo"},
    45  			want: ":foo",
    46  		}, {
    47  			l:    Label{Repo: "@", Pkg: "foo/bar", Name: "baz"},
    48  			want: "@//foo/bar:baz",
    49  		},
    50  	} {
    51  		if got, want := spec.l.String(), spec.want; got != want {
    52  			t.Errorf("%#v.String() = %q; want %q", spec.l, got, want)
    53  		}
    54  	}
    55  }
    56  
    57  func TestParse(t *testing.T) {
    58  	for _, tc := range []struct {
    59  		str     string
    60  		want    Label
    61  		wantErr bool
    62  	}{
    63  		{str: "", wantErr: true},
    64  		{str: "@//:", wantErr: true},
    65  		{str: "@a:b", wantErr: true},
    66  		{str: "@a//", wantErr: true},
    67  		{str: "@//:a", want: Label{Repo: "@", Name: "a", Relative: false}},
    68  		{str: "@//a:b", want: Label{Repo: "@", Pkg: "a", Name: "b"}},
    69  		{str: ":a", want: Label{Name: "a", Relative: true}},
    70  		{str: "a", want: Label{Name: "a", Relative: true}},
    71  		{str: "//:a", want: Label{Name: "a", Relative: false}},
    72  		{str: "//a", want: Label{Pkg: "a", Name: "a"}},
    73  		{str: "//a/b", want: Label{Pkg: "a/b", Name: "b"}},
    74  		{str: "//a:b", want: Label{Pkg: "a", Name: "b"}},
    75  		{str: "@a", want: Label{Repo: "a", Pkg: "", Name: "a"}},
    76  		{str: "@a//b", want: Label{Repo: "a", Pkg: "b", Name: "b"}},
    77  		{str: "@a//b:c", want: Label{Repo: "a", Pkg: "b", Name: "c"}},
    78  		{str: "@a//@b:c", want: Label{Repo: "a", Pkg: "@b", Name: "c"}},
    79  		{str: "@..//b:c", want: Label{Repo: "..", Pkg: "b", Name: "c"}},
    80  		{str: "@--//b:c", want: Label{Repo: "--", Pkg: "b", Name: "c"}},
    81  		{str: "//api_proto:api.gen.pb.go_checkshtest", want: Label{Pkg: "api_proto", Name: "api.gen.pb.go_checkshtest"}},
    82  		{str: "@go_sdk//:src/cmd/go/testdata/mod/rsc.io_!q!u!o!t!e_v1.5.2.txt", want: Label{Repo: "go_sdk", Name: "src/cmd/go/testdata/mod/rsc.io_!q!u!o!t!e_v1.5.2.txt"}},
    83  		{str: "//:a][b", want: Label{Name: "a][b"}},
    84  		{str: "//:a b", want: Label{Name: "a b"}},
    85  		{str: "//some/pkg/[someId]:someId", want: Label{Pkg: "some/pkg/[someId]", Name: "someId"}},
    86  		{str: "//some/pkg/[someId]:[someId]", want: Label{Pkg: "some/pkg/[someId]", Name: "[someId]"}},
    87  		{str: "@a//some/pkg/[someId]:[someId]", want: Label{Repo: "a", Pkg: "some/pkg/[someId]", Name: "[someId]"}},
    88  		{str: "@rules_python~0.0.0~pip~name_dep//:_pkg", want: Label{Repo: "rules_python~0.0.0~pip~name_dep", Name: "_pkg"}},
    89  		{str: "@rules_python~0.0.0~pip~name//:dep_pkg", want: Label{Repo: "rules_python~0.0.0~pip~name", Name: "dep_pkg"}},
    90  		{str: "@@rules_python~0.26.0~python~python_3_10_x86_64-unknown-linux-gnu//:python_runtimes", want: Label{Repo: "rules_python~0.26.0~python~python_3_10_x86_64-unknown-linux-gnu", Name: "python_runtimes"}},
    91  	} {
    92  		got, err := Parse(tc.str)
    93  		if err != nil && !tc.wantErr {
    94  			t.Errorf("for string %q: got error %s ; want success", tc.str, err)
    95  			continue
    96  		}
    97  		if err == nil && tc.wantErr {
    98  			t.Errorf("for string %q: got label %s ; want error", tc.str, got)
    99  			continue
   100  		}
   101  		if !reflect.DeepEqual(got, tc.want) {
   102  			t.Errorf("for string %q: got %s ; want %s", tc.str, got, tc.want)
   103  		}
   104  	}
   105  }
   106  
   107  func TestImportPathToBazelRepoName(t *testing.T) {
   108  	for path, want := range map[string]string{
   109  		"git.sr.ht/~urandom/errors": "ht_sr_git_urandom_errors",
   110  		"golang.org/x/mod":          "org_golang_x_mod",
   111  	} {
   112  		if got := ImportPathToBazelRepoName(path); got != want {
   113  			t.Errorf(`ImportPathToBazelRepoName(%q) = %q; want %q`, path, got, want)
   114  		}
   115  	}
   116  }
   117
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