81 lines
2.0 KiB
Go
81 lines
2.0 KiB
Go
// Copyright 2024 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 promql
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import (
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"bytes"
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"errors"
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"testing"
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"github.com/prometheus/common/promslog"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/promql/parser"
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"github.com/prometheus/prometheus/util/annotations"
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)
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func TestRecoverEvaluatorRuntime(t *testing.T) {
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var output bytes.Buffer
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logger := promslog.New(&promslog.Config{Writer: &output})
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ev := &evaluator{logger: logger}
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expr, _ := parser.ParseExpr("sum(up)")
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var err error
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defer func() {
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require.EqualError(t, err, "unexpected error: runtime error: index out of range [123] with length 0")
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require.Contains(t, output.String(), "sum(up)")
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}()
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defer ev.recover(expr, nil, &err)
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// Cause a runtime panic.
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var a []int
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a[123] = 1
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}
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func TestRecoverEvaluatorError(t *testing.T) {
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ev := &evaluator{logger: promslog.NewNopLogger()}
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var err error
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e := errors.New("custom error")
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defer func() {
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require.EqualError(t, err, e.Error())
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}()
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defer ev.recover(nil, nil, &err)
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panic(e)
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}
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func TestRecoverEvaluatorErrorWithWarnings(t *testing.T) {
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ev := &evaluator{logger: promslog.NewNopLogger()}
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var err error
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var ws annotations.Annotations
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warnings := annotations.New().Add(errors.New("custom warning"))
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e := errWithWarnings{
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err: errors.New("custom error"),
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warnings: warnings,
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}
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defer func() {
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require.EqualError(t, err, e.Error())
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require.Equal(t, warnings, ws, "wrong warning message")
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}()
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defer ev.recover(nil, &ws, &err)
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panic(e)
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}
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