49 lines
1.3 KiB
Go
49 lines
1.3 KiB
Go
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// Copyright 2020 The Prometheus Authors
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package logging
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import (
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"errors"
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"io/ioutil"
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"os"
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"regexp"
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"testing"
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"github.com/prometheus/prometheus/util/testutil"
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)
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func TestJSONFileLogger_basic(t *testing.T) {
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f, err := ioutil.TempFile("", "")
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testutil.Ok(t, err)
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defer f.Close()
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l, err := NewJSONFileLogger(f.Name())
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testutil.Ok(t, err)
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testutil.Assert(t, l != nil, "logger can't be nil")
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l.Log("test", "yes")
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r := make([]byte, 1024)
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_, err = f.Read(r)
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testutil.Ok(t, err)
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result, err := regexp.Match(`^{"test":"yes","ts":"[^"]+"}\n`, r)
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testutil.Ok(t, err)
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testutil.Assert(t, result, "unexpected content: %s", r)
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err = l.Close()
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testutil.Ok(t, err)
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err = l.file.Close()
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testutil.Assert(t, errors.Is(err, os.ErrClosed), "file was not closed")
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}
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