mirror of https://github.com/0xERR0R/blocky.git
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
package resolver
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import (
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"context"
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"errors"
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"github.com/0xERR0R/blocky/config"
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"github.com/0xERR0R/blocky/log"
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. "github.com/0xERR0R/blocky/helpertest"
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. "github.com/0xERR0R/blocky/model"
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"github.com/miekg/dns"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/testutil"
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"github.com/stretchr/testify/mock"
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)
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var _ = Describe("MetricResolver", func() {
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var (
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sut *MetricsResolver
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m *mockResolver
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ctx context.Context
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cancelFn context.CancelFunc
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)
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Describe("Type", func() {
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It("follows conventions", func() {
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expectValidResolverType(sut)
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})
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})
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BeforeEach(func() {
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ctx, cancelFn = context.WithCancel(context.Background())
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DeferCleanup(cancelFn)
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sut = NewMetricsResolver(config.Metrics{Enable: true})
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m = &mockResolver{}
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m.On("Resolve", mock.Anything).Return(&Response{Res: new(dns.Msg)}, nil)
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sut.Next(m)
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})
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Describe("IsEnabled", func() {
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It("is true", func() {
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Expect(sut.IsEnabled()).Should(BeTrue())
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})
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})
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Describe("LogConfig", func() {
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It("should log something", func() {
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logger, hook := log.NewMockEntry()
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sut.LogConfig(logger)
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Expect(hook.Calls).ShouldNot(BeEmpty())
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})
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})
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Describe("Recording prometheus metrics", func() {
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Context("Recording request metrics", func() {
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When("Request will be performed", func() {
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It("Should record metrics", func() {
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Expect(sut.Resolve(ctx, newRequestWithClient("example.com.", A, "", "client"))).
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Should(
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SatisfyAll(
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HaveResponseType(ResponseTypeRESOLVED),
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HaveReturnCode(dns.RcodeSuccess),
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))
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cnt, err := sut.totalQueries.GetMetricWith(prometheus.Labels{"client": "client", "type": "A"})
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Expect(err).Should(Succeed())
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Expect(testutil.ToFloat64(cnt)).Should(BeNumerically("==", 1))
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m.AssertExpectations(GinkgoT())
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})
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})
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When("Error occurs while request processing", func() {
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BeforeEach(func() {
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m = &mockResolver{}
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m.On("Resolve", mock.Anything).Return(nil, errors.New("error"))
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sut.Next(m)
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})
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It("Error should be recorded", func() {
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_, err := sut.Resolve(ctx, newRequestWithClient("example.com.", A, "", "client"))
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Expect(err).Should(HaveOccurred())
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Expect(testutil.ToFloat64(sut.totalErrors)).Should(BeNumerically("==", 1))
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})
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})
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})
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})
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})
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