472 lines
12 KiB
Go
472 lines
12 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"io/fs"
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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"time"
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"go.uber.org/goleak"
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)
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func TestMakeAbsPath(t *testing.T) {
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cases := []struct {
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path string
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root string
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exp string
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}{{
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path: "", root: "", exp: "",
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}, {
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path: "", root: "/root", exp: "",
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}, {
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path: "path", root: "/root", exp: "/root/path",
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}, {
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path: "p/a/t/h", root: "/root", exp: "/root/p/a/t/h",
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}, {
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path: "/path", root: "/root", exp: "/path",
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}, {
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path: "/p/a/t/h", root: "/root", exp: "/p/a/t/h",
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}}
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for _, tc := range cases {
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res := makeAbsPath(tc.path, absPath(tc.root))
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if res.String() != tc.exp {
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t.Errorf("expected: %q, got: %q", tc.exp, res)
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}
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}
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}
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func TestWorktreePath(t *testing.T) {
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testCases := []absPath{
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"",
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"/",
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"//",
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"/dir",
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"/dir/",
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"/dir//",
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"/dir/sub",
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"/dir/sub/",
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"/dir//sub",
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"/dir//sub/",
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"dir",
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"dir/sub",
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}
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for _, tc := range testCases {
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if want, got := tc, worktree(tc).Path(); want != got {
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t.Errorf("expected %q, got %q", want, got)
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}
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}
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}
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func TestWorktreeHash(t *testing.T) {
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testCases := []struct {
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in worktree
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exp string
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}{{
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in: "",
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exp: "",
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}, {
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in: "/",
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exp: "",
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}, {
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in: "/one",
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exp: "one",
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}, {
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in: "/one/two",
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exp: "two",
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}, {
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in: "/one/two/",
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exp: "two",
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}, {
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in: "/one//two",
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exp: "two",
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}}
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for _, tc := range testCases {
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if want, got := tc.exp, tc.in.Hash(); want != got {
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t.Errorf("%q: expected %q, got %q", tc.in, want, got)
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}
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}
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}
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func TestManualHasNoTabs(t *testing.T) {
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if strings.Contains(manual, "\t") {
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t.Fatal("the manual text contains a tab")
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}
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}
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func TestParseGitConfigs(t *testing.T) {
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cases := []struct {
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name string
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input string
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expect []keyVal
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fail bool
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}{{
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name: "empty",
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input: ``,
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expect: []keyVal{},
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}, {
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name: "one-pair",
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input: `k:v`,
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expect: []keyVal{keyVal{"k", "v"}},
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}, {
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name: "one-pair-qkey",
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input: `"k":v`,
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expect: []keyVal{keyVal{"k", "v"}},
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}, {
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name: "one-pair-qval",
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input: `k:"v"`,
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expect: []keyVal{keyVal{"k", "v"}},
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}, {
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name: "one-pair-qkey-qval",
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input: `"k":"v"`,
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expect: []keyVal{keyVal{"k", "v"}},
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}, {
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name: "multi-pair",
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input: `k1:v1,"k2":v2,k3:"v3","k4":"v4"`,
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expect: []keyVal{{"k1", "v1"}, {"k2", "v2"}, {"k3", "v3"}, {"k4", "v4"}},
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}, {
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name: "garbage",
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input: `abc123`,
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fail: true,
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}, {
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name: "key-section-var",
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input: `sect.var:v`,
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expect: []keyVal{keyVal{"sect.var", "v"}},
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}, {
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name: "key-section-subsection-var",
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input: `sect.sub.var:v`,
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expect: []keyVal{keyVal{"sect.sub.var", "v"}},
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}, {
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name: "key-subsection-with-space",
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input: `k.sect.sub section:v`,
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expect: []keyVal{keyVal{"k.sect.sub section", "v"}},
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}, {
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name: "key-subsection-with-escape",
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input: `k.sect.sub\tsection:v`,
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expect: []keyVal{keyVal{"k.sect.sub\\tsection", "v"}},
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}, {
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name: "key-subsection-with-comma",
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input: `k.sect.sub,section:v`,
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expect: []keyVal{keyVal{"k.sect.sub,section", "v"}},
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}, {
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name: "qkey-subsection-with-space",
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input: `"k.sect.sub section":v`,
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expect: []keyVal{keyVal{"k.sect.sub section", "v"}},
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}, {
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name: "qkey-subsection-with-escapes",
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input: `"k.sect.sub\t\n\\section":v`,
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expect: []keyVal{keyVal{"k.sect.sub\t\n\\section", "v"}},
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}, {
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name: "qkey-subsection-with-comma",
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input: `"k.sect.sub,section":v`,
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expect: []keyVal{keyVal{"k.sect.sub,section", "v"}},
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}, {
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name: "qkey-subsection-with-colon",
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input: `"k.sect.sub:section":v`,
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expect: []keyVal{keyVal{"k.sect.sub:section", "v"}},
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}, {
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name: "invalid-qkey",
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input: `"k\xk":v"`,
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fail: true,
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}, {
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name: "val-spaces",
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input: `k1:v 1,k2:v 2`,
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expect: []keyVal{{"k1", "v 1"}, {"k2", "v 2"}},
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}, {
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name: "qval-spaces",
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input: `k1:" v 1 ",k2:" v 2 "`,
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expect: []keyVal{{"k1", " v 1 "}, {"k2", " v 2 "}},
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}, {
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name: "mix-val-qval",
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input: `k1:v 1,k2:" v 2 "`,
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expect: []keyVal{{"k1", "v 1"}, {"k2", " v 2 "}},
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}, {
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name: "garbage-after-qval",
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input: `k1:"v1"x,k2:"v2"`,
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fail: true,
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}, {
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name: "dangling-comma",
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input: `k1:"v1",k2:"v2",`,
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expect: []keyVal{{"k1", "v1"}, {"k2", "v2"}},
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}, {
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name: "val-with-escapes",
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input: `k1:v\n\t\\\"\,1`,
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expect: []keyVal{{"k1", "v\n\t\\\",1"}},
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}, {
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name: "qval-with-escapes",
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input: `k1:"v\n\t\\\"\,1"`,
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expect: []keyVal{{"k1", "v\n\t\\\",1"}},
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}, {
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name: "qval-with-comma",
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input: `k1:"v,1"`,
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expect: []keyVal{{"k1", "v,1"}},
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}, {
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name: "qkey-missing-close",
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input: `"k1:v1`,
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fail: true,
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}, {
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name: "qval-missing-close",
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input: `k1:"v1`,
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fail: true,
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}}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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defer goleak.VerifyNone(t)
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kvs, err := parseGitConfigs(tc.input)
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if err != nil && !tc.fail {
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t.Errorf("unexpected error: %v", err)
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}
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if err == nil && tc.fail {
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t.Errorf("unexpected success")
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}
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if !reflect.DeepEqual(kvs, tc.expect) {
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t.Errorf("bad result:\n\texpected: %#v\n\t got: %#v", tc.expect, kvs)
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}
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})
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}
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}
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func TestDirIsEmpty(t *testing.T) {
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root := absPath(t.TempDir())
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// Brand new should be empty.
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if empty, err := dirIsEmpty(root); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if !empty {
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t.Errorf("expected %q to be deemed empty", root)
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}
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// Holding normal files should not be empty.
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dir := root.Join("files")
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if err := os.Mkdir(dir.String(), 0755); err != nil {
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t.Fatalf("failed to make a temp subdir: %v", err)
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}
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for _, file := range []string{"a", "b", "c"} {
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path := filepath.Join(dir.String(), file)
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if err := os.WriteFile(path, []byte{}, 0755); err != nil {
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t.Fatalf("failed to write a file: %v", err)
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}
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if empty, err := dirIsEmpty(dir); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if empty {
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t.Errorf("expected %q to be deemed not-empty", dir)
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}
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}
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// Holding dot-files should not be empty.
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dir = root.Join("dot-files")
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if err := os.Mkdir(dir.String(), 0755); err != nil {
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t.Fatalf("failed to make a temp subdir: %v", err)
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}
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for _, file := range []string{".a", ".b", ".c"} {
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path := dir.Join(file)
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if err := os.WriteFile(path.String(), []byte{}, 0755); err != nil {
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t.Fatalf("failed to write a file: %v", err)
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}
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if empty, err := dirIsEmpty(dir); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if empty {
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t.Errorf("expected %q to be deemed not-empty", dir)
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}
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}
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// Holding dirs should not be empty.
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dir = root.Join("dirs")
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if err := os.Mkdir(dir.String(), 0755); err != nil {
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t.Fatalf("failed to make a temp subdir: %v", err)
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}
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for _, subdir := range []string{"a", "b", "c"} {
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path := filepath.Join(dir.String(), subdir)
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if err := os.Mkdir(path, 0755); err != nil {
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t.Fatalf("failed to make a subdir: %v", err)
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}
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if empty, err := dirIsEmpty(dir); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if empty {
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t.Errorf("expected %q to be deemed not-empty", dir)
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}
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}
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// Test error path.
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if _, err := dirIsEmpty(root.Join("does-not-exist")); err == nil {
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t.Errorf("unexpected success for non-existent dir")
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}
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}
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func TestRemoveDirContentsIf(t *testing.T) {
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root := absPath(t.TempDir())
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// Brand new should be empty.
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if empty, err := dirIsEmpty(root); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if !empty {
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t.Errorf("expected %q to be deemed empty", root)
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}
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fn := func(fi fs.FileInfo) (bool, error) {
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return true, nil
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}
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// Test removal.
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if err := removeDirContentsIf(root, nil, fn); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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// Populate the dir.
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for _, file := range []string{"f1", "f2", ".f3", ".f4"} {
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path := root.Join(file)
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if err := os.WriteFile(path.String(), []byte{}, 0755); err != nil {
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t.Fatalf("failed to write a file: %v", err)
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}
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}
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for _, subdir := range []string{"d1", "d2", "d3"} {
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path := root.Join(subdir)
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if err := os.Mkdir(path.String(), 0755); err != nil {
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t.Fatalf("failed to make a subdir: %v", err)
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}
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}
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// It should be deemed not-empty
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if empty, err := dirIsEmpty(root); err != nil {
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t.Fatalf("unexpected error: %v", err)
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} else if empty {
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t.Errorf("expected %q to be deemed not-empty", root)
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}
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// Test removal.
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if err := removeDirContentsIf(root, nil, fn); err != nil {
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t.Errorf("unexpected error: %v", err)
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}
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// Test error path.
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if err := removeDirContentsIf(root.Join("does-not-exist"), nil, fn); err == nil {
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t.Errorf("unexpected success for non-existent dir")
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}
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}
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func TestTouch(t *testing.T) {
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root := absPath(t.TempDir())
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// Make a dir and get info.
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dirPath := root.Join("dir")
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if err := os.MkdirAll(dirPath.String(), 0755); err != nil {
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t.Fatalf("can't create dir: %v", err)
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}
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// Make a file and get info.
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filePath := root.Join("file")
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if file, err := os.Create(filePath.String()); err != nil {
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t.Fatalf("can't create file: %v", err)
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} else {
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file.Close()
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}
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// Make sure a newfile does not exist.
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newfilePath := root.Join("newfile")
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if fi, err := os.Stat(newfilePath.String()); err == nil {
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t.Fatalf("unexpected newfile: %v", fi)
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} else if !os.IsNotExist(err) {
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t.Fatalf("can't stat newfile: %v", err)
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}
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time.Sleep(500 * time.Millisecond)
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stamp := time.Now()
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time.Sleep(100 * time.Millisecond)
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if err := touch(dirPath); err != nil {
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t.Fatalf("touch(dir) failed: %v", err)
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}
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if dirInfo, err := os.Stat(dirPath.String()); err != nil {
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t.Fatalf("can't stat dir: %v", err)
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} else if !dirInfo.IsDir() {
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t.Errorf("touch(dir) is no longer a dir: %v", dirInfo)
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} else if !dirInfo.ModTime().After(stamp) {
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t.Errorf("touch(dir) mtime %v is not after %v", dirInfo.ModTime(), stamp)
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}
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if err := touch(filePath); err != nil {
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t.Fatalf("touch(file) failed: %v", err)
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}
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if fileInfo, err := os.Stat(filePath.String()); err != nil {
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t.Fatalf("can't stat file: %v", err)
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} else if fileInfo.IsDir() {
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t.Errorf("touch(file) is no longer a file: %v", fileInfo)
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} else if !fileInfo.ModTime().After(stamp) {
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t.Errorf("touch(file) mtime %v is not after %v", fileInfo.ModTime(), stamp)
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}
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if err := touch(newfilePath); err != nil {
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t.Fatalf("touch(newfile) failed: %v", err)
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}
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if newfileInfo, err := os.Stat(newfilePath.String()); err != nil {
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t.Fatalf("can't stat newfile: %v", err)
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} else if newfileInfo.IsDir() {
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t.Errorf("touch(newfile) is not a file: %v", newfileInfo)
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} else if !newfileInfo.ModTime().After(stamp) {
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t.Errorf("touch(newfile) mtime %v is not after %v", newfileInfo.ModTime(), stamp)
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}
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}
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func TestHasGitLockFile(t *testing.T) {
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testCases := map[string]struct {
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inputFilePath []string
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expectLockFile bool
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}{
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"missing .git directory": {
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expectLockFile: false,
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},
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"has git directory but no lock files": {
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inputFilePath: []string{".git", "HEAD"},
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expectLockFile: false,
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},
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"shallow.lock file": {
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inputFilePath: []string{".git", "shallow.lock"},
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expectLockFile: true,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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root := absPath(t.TempDir())
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if len(tc.inputFilePath) > 0 {
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if err := touch(root.Join(tc.inputFilePath...)); err != nil {
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t.Fatal(err)
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}
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}
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lockFile, err := hasGitLockFile(root)
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if err != nil {
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t.Fatal(err)
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}
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hasLock := len(lockFile) > 0
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if hasLock != tc.expectLockFile {
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t.Fatalf("expected hasGitLockFile to return %v, but got %v", tc.expectLockFile, hasLock)
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}
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})
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}
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}
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