mirror of https://github.com/go-gitea/gitea
228 lines
6.7 KiB
Go
228 lines
6.7 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package foreachref_test
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import (
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"errors"
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"fmt"
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"io"
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"strings"
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"testing"
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"code.gitea.io/gitea/modules/git/foreachref"
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"code.gitea.io/gitea/modules/json"
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"github.com/stretchr/testify/require"
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)
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type refSlice = []map[string]string
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func TestParser(t *testing.T) {
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tests := []struct {
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name string
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givenFormat foreachref.Format
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givenInput io.Reader
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wantRefs refSlice
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wantErr bool
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expectedErr error
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}{
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// this would, for example, be the result when running `git
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// for-each-ref refs/tags` on a repo without tags.
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{
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name: "no references on empty input",
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givenFormat: foreachref.NewFormat("refname:short"),
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givenInput: strings.NewReader(``),
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wantRefs: []map[string]string{},
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},
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// note: `git for-each-ref` will add a newline between every
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// reference (in addition to the ref-delimiter we've chosen)
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{
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name: "single field requested, single reference in output",
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givenFormat: foreachref.NewFormat("refname:short"),
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givenInput: strings.NewReader("refname:short v0.0.1\x00\x00" + "\n"),
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wantRefs: []map[string]string{
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{"refname:short": "v0.0.1"},
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},
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},
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{
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name: "single field requested, multiple references in output",
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givenFormat: foreachref.NewFormat("refname:short"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00\x00" + "\n" +
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"refname:short v0.0.2\x00\x00" + "\n" +
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"refname:short v0.0.3\x00\x00" + "\n"),
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wantRefs: []map[string]string{
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{"refname:short": "v0.0.1"},
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{"refname:short": "v0.0.2"},
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{"refname:short": "v0.0.3"},
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},
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},
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{
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name: "multiple fields requested for each reference",
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givenFormat: foreachref.NewFormat("refname:short", "objecttype", "objectname"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00objecttype commit\x00objectname 7b2c5ac9fc04fc5efafb60700713d4fa609b777b\x00\x00" + "\n" +
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"refname:short v0.0.2\x00objecttype commit\x00objectname a1f051bc3eba734da4772d60e2d677f47cf93ef4\x00\x00" + "\n" +
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"refname:short v0.0.3\x00objecttype commit\x00objectname ef82de70bb3f60c65fb8eebacbb2d122ef517385\x00\x00" + "\n",
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),
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wantRefs: []map[string]string{
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{
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"refname:short": "v0.0.1",
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"objecttype": "commit",
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"objectname": "7b2c5ac9fc04fc5efafb60700713d4fa609b777b",
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},
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{
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"refname:short": "v0.0.2",
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"objecttype": "commit",
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"objectname": "a1f051bc3eba734da4772d60e2d677f47cf93ef4",
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},
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{
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"refname:short": "v0.0.3",
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"objecttype": "commit",
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"objectname": "ef82de70bb3f60c65fb8eebacbb2d122ef517385",
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},
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},
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},
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{
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name: "must handle multi-line fields such as 'content'",
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givenFormat: foreachref.NewFormat("refname:short", "contents", "author"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00contents Create new buffer if not present yet (#549)\n\nFixes a nil dereference when ProcessFoo is used\nwith multiple commands.\x00author Foo Bar <foo@bar.com> 1507832733 +0200\x00\x00" + "\n" +
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"refname:short v0.0.2\x00contents Update CI config (#651)\n\n\x00author John Doe <john.doe@foo.com> 1521643174 +0000\x00\x00" + "\n" +
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"refname:short v0.0.3\x00contents Fixed code sample for bash completion (#687)\n\n\x00author Foo Baz <foo@baz.com> 1524836750 +0200\x00\x00" + "\n",
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),
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wantRefs: []map[string]string{
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{
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"refname:short": "v0.0.1",
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"contents": "Create new buffer if not present yet (#549)\n\nFixes a nil dereference when ProcessFoo is used\nwith multiple commands.",
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"author": "Foo Bar <foo@bar.com> 1507832733 +0200",
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},
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{
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"refname:short": "v0.0.2",
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"contents": "Update CI config (#651)",
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"author": "John Doe <john.doe@foo.com> 1521643174 +0000",
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},
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{
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"refname:short": "v0.0.3",
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"contents": "Fixed code sample for bash completion (#687)",
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"author": "Foo Baz <foo@baz.com> 1524836750 +0200",
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},
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},
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},
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{
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name: "must handle fields without values",
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givenFormat: foreachref.NewFormat("refname:short", "object", "objecttype"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00object \x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.2\x00object \x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.3\x00object \x00objecttype commit\x00\x00" + "\n",
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),
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wantRefs: []map[string]string{
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{
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"refname:short": "v0.0.1",
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"object": "",
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"objecttype": "commit",
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},
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{
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"refname:short": "v0.0.2",
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"object": "",
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"objecttype": "commit",
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},
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{
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"refname:short": "v0.0.3",
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"object": "",
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"objecttype": "commit",
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},
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},
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},
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{
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name: "must fail when the number of fields in the input doesn't match expected format",
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givenFormat: foreachref.NewFormat("refname:short", "objecttype", "objectname"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.2\x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.3\x00objecttype commit\x00\x00" + "\n",
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),
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wantErr: true,
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expectedErr: errors.New("unexpected number of reference fields: wanted 2, was 3"),
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},
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{
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name: "must fail input fields don't match expected format",
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givenFormat: foreachref.NewFormat("refname:short", "objectname"),
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givenInput: strings.NewReader(
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"refname:short v0.0.1\x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.2\x00objecttype commit\x00\x00" + "\n" +
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"refname:short v0.0.3\x00objecttype commit\x00\x00" + "\n",
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),
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wantErr: true,
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expectedErr: errors.New("unexpected field name at position 1: wanted: 'objectname', was: 'objecttype'"),
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},
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}
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for _, test := range tests {
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tc := test // don't close over loop variable
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t.Run(tc.name, func(t *testing.T) {
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parser := tc.givenFormat.Parser(tc.givenInput)
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//
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// parse references from input
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//
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gotRefs := make([]map[string]string, 0)
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for {
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ref := parser.Next()
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if ref == nil {
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break
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}
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gotRefs = append(gotRefs, ref)
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}
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err := parser.Err()
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//
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// verify expectations
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//
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if tc.wantErr {
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require.Error(t, err)
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require.EqualError(t, err, tc.expectedErr.Error())
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} else {
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require.NoError(t, err, "for-each-ref parser unexpectedly failed with: %v", err)
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require.Equal(t, tc.wantRefs, gotRefs, "for-each-ref parser produced unexpected reference set. wanted: %v, got: %v", pretty(tc.wantRefs), pretty(gotRefs))
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}
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})
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}
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}
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func pretty(v any) string {
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data, err := json.MarshalIndent(v, "", " ")
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if err != nil {
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// shouldn't happen
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panic(fmt.Sprintf("json-marshalling failed: %v", err))
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}
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return string(data)
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}
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