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Ginkgo tests are parallelizable (ginkgo -p)

Browse Source 
We'd like to parallelize the tests to lay the foundation for the
upcoming expansion of flags passed to the executable (e.g.
`-nameservers`), which will spawn a series of executables, each of which
takes 3 seconds to spin up, and running that sequentially would make
testing tiresome.

- We've migrated away from `serverSession.Err).Should(Say())`
  to `serverSession.Err.Contents())).Should(MatchRegexp())`. `Say()`
  depends on ordering, `MatchRegexp()` doesn't.
- We introduce a short, 50-millisecond `Sleep()` in `isPortFree()` to
  eliminate a race condition introduced by parallelization where the
  same port is returned twice.
- Some of our `DescribeTable` tests were order-dependent; we moved them
  outside the table.
- We parallelize our pipeline's unit tests.
- For the `k-v.io` tests, we used different keys for each `It()` block
  to avoid pollution. We are also more careful about waiting for the
  setup to complete before running the actual test.

As a side-effect of parallelizing the tests, we no longer require `sudo`
on Linux to run the tests, for we no longer attempt to bind to port 53;
instead, we bind to a series of available unprivileged ports.
This commit is contained in:
Brian Cunnie
2022-08-04 07:55:17 -07:00
parent ee02e0badc
commit 56924923d3
4 changed files with 81 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files

130
src/sslip.io-dns-server/integration_test.go
View File

@@ -56,69 +56,69 @@ var _ = Describe("sslip.io-dns-server", func() {
// of negative assertions (e.g. "^$")
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(digSession.Out.Contents())).Should(MatchRegexp(digResults))
Eventually(serverSession.Err).Should(Say(serverLogMessage))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(serverLogMessage))
},
Entry("A (customized) for k-v.io",
"@localhost k-v.io +short",
`\A104.155.144.4\n\z`,
`TypeA k-v.io. \? 104.155.144.4\n$`),
`TypeA k-v.io. \? 104.155.144.4\n`),
Entry("A (customized) for sslip.io",
"@localhost sslip.io +short",
`\A78.46.204.247\n\z`,
`TypeA sslip.io. \? 78.46.204.247\n$`),
`TypeA sslip.io. \? 78.46.204.247\n`),
Entry("A (or lack thereof) for example.com",
"@localhost example.com +short",
`\A\z`,
`TypeA example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeA example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry("A for www-127-0-0-1.sslip.io",
"@localhost www-127-0-0-1.sslip.io +short",
`\A127.0.0.1\n\z`,
`TypeA www-127-0-0-1.sslip.io. \? 127.0.0.1\n$`),
`TypeA www-127-0-0-1.sslip.io. \? 127.0.0.1\n`),
Entry("A for www.192.168.0.1.sslip.io",
"@localhost www.192.168.0.1.sslip.io +short",
`\A192.168.0.1\n\z`,
`TypeA www.192.168.0.1.sslip.io. \? 192.168.0.1\n$`),
`TypeA www.192.168.0.1.sslip.io. \? 192.168.0.1\n`),
Entry("AAAA (customized) for sslip.io",
"@localhost sslip.io aaaa +short",
`\A2a01:4f8:c17:b8f::2\n\z`,
`TypeAAAA sslip.io. \? 2a01:4f8:c17:b8f::2\n$`),
`TypeAAAA sslip.io. \? 2a01:4f8:c17:b8f::2\n`),
Entry("AAAA not found for example.com",
"@localhost example.com aaaa +short",
`\A\z`,
`TypeAAAA example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeAAAA example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry("AAAA for www-2601-646-100-69f0-1c09-bae7-aa42-146c.sslip.io",
"@localhost www-2601-646-100-69f0-1c09-bae7-aa42-146c.sslip.io aaaa +short",
`\A2601:646:100:69f0:1c09:bae7:aa42:146c\n\z`,
`TypeAAAA www-2601-646-100-69f0-1c09-bae7-aa42-146c.sslip.io. \? 2601:646:100:69f0:1c09:bae7:aa42:146c\n$`),
`TypeAAAA www-2601-646-100-69f0-1c09-bae7-aa42-146c.sslip.io. \? 2601:646:100:69f0:1c09:bae7:aa42:146c\n`),
Entry("ALL (ANY) is NOT implemented",
// `+notcp` required for dig 9.11.25-RedHat-9.11.25-2.fc32 to avoid "connection refused"
"@localhost sslip.io any +notcp",
` status: NOTIMP,`,
`TypeALL sslip.io. \? NotImplemented\n$`),
`TypeALL sslip.io. \? NotImplemented\n`),
Entry("CNAME (customized) for protonmail._domainkey.sslip.io",
"@localhost protonmail._domainkey.sslip.io cname +short",
`\Aprotonmail.domainkey.dw4gykv5i2brtkjglrf34wf6kbxpa5hgtmg2xqopinhgxn5axo73a.domains.proton.ch.\n\z`,
`TypeCNAME protonmail._domainkey.sslip.io. \? protonmail.domainkey.dw4gykv5i2brtkjglrf34wf6kbxpa5hgtmg2xqopinhgxn5axo73a.domains.proton.ch.\n$`),
`TypeCNAME protonmail._domainkey.sslip.io. \? protonmail.domainkey.dw4gykv5i2brtkjglrf34wf6kbxpa5hgtmg2xqopinhgxn5axo73a.domains.proton.ch.\n`),
Entry("CNAME not found for example.com",
"@localhost example.com cname +short",
`\A\z`,
`TypeCNAME example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeCNAME example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry("MX for example.com",
"@localhost example.com mx +short",
`\A0 example.com.\n\z`,
`TypeMX example.com. \? 0 example.com.\n$`),
`TypeMX example.com. \? 0 example.com.\n`),
Entry("SOA for sslip.io",
"@localhost sslip.io soa +short",
`\Asslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n\z`,
`TypeSOA sslip.io. \? sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeSOA sslip.io. \? sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry("SOA for example.com",
"@localhost example.com soa +short",
`\Aexample.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n\z`,
`TypeSOA example.com. \? example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeSOA example.com. \? example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry("SRV (or other record that we don't implement) for example.com",
"@localhost example.com srv +short",
`\A\z`,
`TypeSRV example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeSRV example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`TXT for version.status.sslip.io is the version number of the xip software (which gets overwritten during linking)`,
"@127.0.0.1 version.status.sslip.io txt +short",
`\A"0.0.0"\n"0001/01/01-99:99:99-0800"\n"cafexxx"\n\z`,
@@ -130,27 +130,19 @@ var _ = Describe("sslip.io-dns-server", func() {
Entry(`TXT is the querier's IPv4 address and the domain is NOT "ip.sslip.io"`,
"@127.0.0.1 example.com txt +short",
`\A\z`,
`TypeTXT example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
Entry(`getting a non-existent value: TXT for my-key.k-v.io"`,
"@127.0.0.1 my-key.k-v.io txt +short",
`TypeTXT example.com. \? nil, SOA example.com. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`getting a non-existent value: TXT for non-existent.k-v.io"`,
"@127.0.0.1 non-existent.k-v.io txt +short",
`\A\z`,
`TypeTXT my-key.k-v.io. \? nil, SOA my-key.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeTXT non-existent.k-v.io. \? nil, SOA non-existent.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`putting a value: TXT for put.MyValue.MY-KEY.k-v.io"`,
"@127.0.0.1 put.MyValue.MY-KEY.k-v.io txt +short",
`"MyValue"`,
`TypeTXT put.MyValue.MY-KEY.k-v.io. \? \["MyValue"\]`),
Entry(`getting a value: TXT for my-key.k-v.io"`,
"@127.0.0.1 my-key.k-v.io txt +short",
`"MyValue"`,
`TypeTXT my-key.k-v.io. \? \["MyValue"\]`),
Entry(`deleting a value: TXT for delete.my-key.k-v.io"`,
"@127.0.0.1 delete.my-key.k-v.io txt +short",
`\A\z`,
`TypeTXT delete.my-key.k-v.io. \? nil, SOA delete.my-key.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
Entry(`getting a non-existent value: TXT for my-key.k-v.io"`,
"@127.0.0.1 my-key.k-v.io txt +short",
`\A\z`,
`TypeTXT my-key.k-v.io. \? nil, SOA my-key.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypeTXT delete.my-key.k-v.io. \? nil, SOA delete.my-key.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`setting a TXT for _acme-challenge.k-v.io appears to work (spoiler: it doesn't)'"`,
"@127.0.0.1 put.sneaky-boy._acme-challenge.k-v.io txt +short",
`sneaky-boy`,
@@ -159,14 +151,6 @@ var _ = Describe("sslip.io-dns-server", func() {
"@127.0.0.1 _acme-challenge.k-v.io txt +short",
`Please don't try to procure a k-v.io cert via DNS-01 challenge`,
`TypeTXT _acme-challenge.k-v.io. \? \["Please don't try to procure a k-v.io cert via DNS-01 challenge"\]`),
Entry(`setting a TXT for _acme-challenge.subdomain-key.k-v.io doesn't expose DNS-01 vulnerability because all keys are on the main domain'"`,
"@127.0.0.1 put.baffled-boy._acme-challenge.subdomain-key.k-v.io txt +short",
`baffled-boy`,
`TypeTXT put.baffled-boy._acme-challenge.subdomain-key.k-v.io. \? \["baffled-boy._acme-challenge"\]`),
Entry(`get a TXT for _acme-challenge.a.b.c.subdomain-key.k-v.io ignores labels between "get" and the key`,
"@127.0.0.1 get._acme-challenge.a.b.c.subdomain-key.k-v.io txt +short",
`baffled-boy._acme-challenge`,
`TypeTXT get._acme-challenge.a.b.c.subdomain-key.k-v.io. \? \["baffled-boy._acme-challenge"\]`),
Entry(`get a PTR for 1.0.168.192.in-addr.arpa returns 192-168-0-1.sslip.io`,
"@127.0.0.1 1.0.168.192.in-addr.arpa ptr +short",
`\A192-168-0-1.sslip.io.\n\z`,
@@ -174,15 +158,15 @@ var _ = Describe("sslip.io-dns-server", func() {
Entry(`get a PTR for 1.0.0.127.blah.in-addr.arpa returns no records`,
"@127.0.0.1 1.0.0.127.blah.in-addr.arpa ptr +short",
`\A\z`,
`TypePTR 1.0.0.127.blah.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR 1.0.0.127.blah.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`get a PTR for blah.1.0.0.127.in-addr.arpa returns no records`,
"@127.0.0.1 blah.1.0.0.127.in-addr.arpa ptr +short",
`\A\z`,
`TypePTR blah.1.0.0.127.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR blah.1.0.0.127.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`get a PTR for 0.0.127.in-addr.arpa returns no records`,
"@127.0.0.1 0.0.127.in-addr.arpa ptr +short",
`\A\z`,
`TypePTR 0.0.127.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR 0.0.127.in-addr.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`get a PTR for 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa returns 2601-646-100-69f0-14ce-6eea-9204-bba2.sslip.io`,
"@127.0.0.1 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa ptr +short",
`\A2601-646-100-69f0-14ce-6eea-9204-bba2.sslip.io.\n\z`,
@@ -190,15 +174,15 @@ var _ = Describe("sslip.io-dns-server", func() {
Entry(`get a PTR for 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.blah.ip6.arpa returns no records`,
"@127.0.0.1 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.blah.ip6.arpa ptr +short",
`\A\z`,
`TypePTR 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.blah.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR 2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.blah.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`get a PTR for b2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa returns no records`,
"@127.0.0.1 b2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa ptr +short",
`\A\z`,
`TypePTR b2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR b2.a.b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
Entry(`get a PTR for b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa returns no records`,
"@127.0.0.1 b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa ptr +short",
`\A\z`,
`TypePTR b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n$`),
`TypePTR b.b.4.0.2.9.a.e.e.6.e.c.4.1.0.f.9.6.0.0.1.0.6.4.6.0.1.0.6.2.ip6.arpa. \? nil, SOA sslip.io. briancunnie.gmail.com. 2022071400 900 900 1800 180\n`),
)
})
Describe("for more complex assertions", func() {
@@ -285,38 +269,75 @@ var _ = Describe("sslip.io-dns-server", func() {
})
When(`a TXT record for a host under the "k-v.io" domain is queried`, func() {
It(`the PUT has a three-minute TTL`, func() {
digArgs = "@localhost put.a.a.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(digSession.Out.Contents())).Should(MatchRegexp(`put.a.a.k-v.io. 180 IN TXT "a"`))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT put.a.a.k-v.io. \? \["a"\]`))
})
It(`the GET has a three-minute TTL`, func() {
// create (PUT) the key
digArgs = "@localhost put.a.b.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession).Should(Say(`put.a.b.k-v.io. 180 IN TXT "a"`))
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT put.a.b.k-v.io. \? \["a"\]`))
})
It(`the GET has a three-minute TTL`, func() {
// retrieve (GET) the key
digArgs = "@localhost b.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession).Should(Say(`b.k-v.io. 180 IN TXT "a"`))
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(digSession.Out.Contents()), 3).Should(MatchRegexp(`b.k-v.io. 180 IN TXT "a"`))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT b.k-v.io. \? \["a"\]`))
})
It(`the DELETE returns no records so that value cached in downstream DNS servers expires more quickly`, func() {
digArgs = "@localhost delete.b.k-v.io txt -p " + strconv.Itoa(port)
// create (PUT) the key
digArgs = "@localhost put.a.c.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT delete.b.k-v.io. \? nil, SOA delete.b.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180`))
// DELETE the key
digArgs = "@localhost delete.c.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT delete.c.k-v.io. \? nil, SOA delete.c.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180`))
})
It(`the DELETE on a non-existent key behaves the same as the DELETE on an existing key`, func() {
digArgs = "@localhost delete.b.k-v.io txt -p " + strconv.Itoa(port)
// DELETE the key (make sure it's gone)
digArgs = "@localhost delete.d.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT delete.b.k-v.io. \? nil, SOA delete.b.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180`))
// DELETE again to test the non-existent behavior
digArgs = "@localhost delete.d.k-v.io txt -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT delete.d.k-v.io. \? nil, SOA delete.d.k-v.io. briancunnie.gmail.com. 2022071400 900 900 1800 180`))
})
It(`setting a TXT for _acme-challenge.subdomain-key.k-v.io doesn't expose DNS-01 vulnerability`, func() {
// set (PUT) the key
digArgs = "@localhost put.baffled-boy._acme-challenge.subdomain-key.k-v.io txt +short -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
// GET the key
digArgs = "@localhost get.subdomain-key.k-v.io txt +short -p " + strconv.Itoa(port)
digCmd = exec.Command("dig", strings.Split(digArgs, " ")...)
digSession, err = Start(digCmd, GinkgoWriter, GinkgoWriter)
Expect(err).ToNot(HaveOccurred())
Eventually(digSession, 1).Should(Exit(0))
Eventually(string(digSession.Out.Contents()), 3).Should(MatchRegexp(`"baffled-boy._acme-challenge"`))
Eventually(string(serverSession.Err.Contents())).Should(MatchRegexp(`TypeTXT get.subdomain-key.k-v.io. \? \["baffled-boy._acme-challenge"\]`))
})
})
When(`a record for an "_acme-challenge" domain is queried`, func() {
@@ -459,6 +480,11 @@ func isPortFree(port int) bool {
if err != nil {
return false
}
// we must Sleep() in order to avoid a race condition when tests
// are run in parallel (`ginkgo -p`) and the `ListenUDP()` and `Close()`
// happen too closely allowing the same port to be used twice
// 4ms is flaky on an Apple M2, 5ms is 10% flaky. We multiply 10x to 50ms
time.Sleep(50 * time.Millisecond)
err = conn.Close()
if err != nil {
log.Printf("I couldn't close port %d", port)