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// Copyright 2022 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bug
import (
"encoding/json"
"fmt"
"testing"
"time"
"github.com/google/go-cmp/cmp"
)
func resetForTesting() {
exemplars = nil
handlers = nil
}
func TestListBugs(t *testing.T) {
defer resetForTesting()
Report("bad")
wantBugs(t, "bad")
for i := 0; i < 3; i++ {
Report(fmt.Sprintf("index:%d", i))
}
wantBugs(t, "bad", "index:0")
}
func wantBugs(t *testing.T, want ...string) {
t.Helper()
bugs := List()
if got, want := len(bugs), len(want); got != want {
t.Errorf("List(): got %d bugs, want %d", got, want)
return
}
for i, b := range bugs {
if got, want := b.Description, want[i]; got != want {
t.Errorf("bug.List()[%d] = %q, want %q", i, got, want)
}
}
}
func TestBugHandler(t *testing.T) {
defer resetForTesting()
Report("unseen")
// Both handlers are called, in order of registration, only once.
var got string
Handle(func(b Bug) { got += "1:" + b.Description })
Handle(func(b Bug) { got += "2:" + b.Description })
Report("seen")
Report("again")
if want := "1:seen2:seen"; got != want {
t.Errorf("got %q, want %q", got, want)
}
}
func TestBugJSON(t *testing.T) {
b1 := Bug{
File: "foo.go",
Line: 1,
Description: "a bug",
Key: "foo.go:1",
Stack: "<stack>",
AtTime: time.Now(),
}
data, err := json.Marshal(b1)
if err != nil {
t.Fatal(err)
}
var b2 Bug
if err := json.Unmarshal(data, &b2); err != nil {
t.Fatal(err)
}
if diff := cmp.Diff(b1, b2); diff != "" {
t.Errorf("bugs differ after JSON Marshal/Unmarshal (-b1 +b2):\n%s", diff)
}
}
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