luet/pkg/api/core/logger/logger_test.go
2022-05-26 13:06:47 +00:00

132 lines
3.5 KiB
Go

// Copyright © 2021 Ettore Di Giacinto <mudler@gentoo.org>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, see <http://www.gnu.org/licenses/>.
package logger_test
import (
"io"
"io/ioutil"
"os"
"github.com/gookit/color"
. "github.com/mudler/luet/pkg/api/core/logger"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
func captureStdout(f func(w io.Writer)) string {
originalStdout := os.Stdout
r, w, _ := os.Pipe()
os.Stdout = w
color.SetOutput(w)
f(w)
_ = w.Close()
out, _ := ioutil.ReadAll(r)
os.Stdout = originalStdout
color.SetOutput(os.Stdout)
_ = r.Close()
return string(out)
}
var _ = Describe("Context and logging", func() {
Context("Context", func() {
It("detect if is a terminal", func() {
Expect(captureStdout(func(w io.Writer) {
_, _, err := GetTerminalSize()
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(Equal("size not detectable"))
os.Stdout.Write([]byte(err.Error()))
})).To(ContainSubstring("size not detectable"))
})
It("respects loglevel", func() {
l, err := New(WithLevel("info"))
Expect(err).ToNot(HaveOccurred())
Expect(captureStdout(func(w io.Writer) {
l.Debug("")
})).To(Equal(""))
l, err = New(WithLevel("debug"))
Expect(err).ToNot(HaveOccurred())
Expect(captureStdout(func(w io.Writer) {
l.Debug("foo")
})).To(ContainSubstring("foo"))
})
It("logs with context", func() {
l, err := New(WithLevel("debug"), WithContext("foo"))
Expect(err).ToNot(HaveOccurred())
Expect(captureStdout(func(w io.Writer) {
l.Debug("bar")
})).To(ContainSubstring("(foo) bar"))
})
It("returns copies with logged context", func() {
l, err := New(WithLevel("debug"))
l2, _ := l.Copy()
l2.SetContext("bazzz")
Expect(err).ToNot(HaveOccurred())
Expect(captureStdout(func(w io.Writer) {
l2.Debug("bar")
})).To(ContainSubstring("(bazzz) bar"))
})
It("logs to file", func() {
t, err := ioutil.TempFile("", "tree")
Expect(err).ToNot(HaveOccurred())
defer os.RemoveAll(t.Name()) // clean up
l, err := New(WithLevel("debug"), WithFileLogging(t.Name(), ""))
Expect(err).ToNot(HaveOccurred())
// ctx.Init()
Expect(captureStdout(func(w io.Writer) {
l.Info("foot")
})).To(And(ContainSubstring("INFO"), ContainSubstring("foot")))
Expect(captureStdout(func(w io.Writer) {
l.Success("test")
})).To(And(ContainSubstring("SUCCESS"), ContainSubstring("test")))
Expect(captureStdout(func(w io.Writer) {
l.Error("foobar")
})).To(And(ContainSubstring("ERROR"), ContainSubstring("foobar")))
Expect(captureStdout(func(w io.Writer) {
l.Warning("foowarn")
})).To(And(ContainSubstring("WARNING"), ContainSubstring("foowarn")))
ll, err := ioutil.ReadFile(t.Name())
Expect(err).ToNot(HaveOccurred())
logs := string(ll)
Expect(logs).To(ContainSubstring("foot"))
Expect(logs).To(ContainSubstring("test"))
Expect(logs).To(ContainSubstring("foowarn"))
Expect(logs).To(ContainSubstring("foobar"))
})
})
})