18947: Refactor arv-git-httpd as an arvados-server subcommand.
[arvados.git] / services / githttpd / integration_test.go
diff --git a/services/githttpd/integration_test.go b/services/githttpd/integration_test.go
new file mode 100644 (file)
index 0000000..c819272
--- /dev/null
@@ -0,0 +1,147 @@
+// Copyright (C) The Arvados Authors. All rights reserved.
+//
+// SPDX-License-Identifier: AGPL-3.0
+
+package githttpd
+
+import (
+       "context"
+       "errors"
+       "io/ioutil"
+       "os"
+       "os/exec"
+       "strings"
+       "testing"
+
+       "git.arvados.org/arvados.git/lib/config"
+       "git.arvados.org/arvados.git/sdk/go/arvados"
+       "git.arvados.org/arvados.git/sdk/go/arvadostest"
+       "git.arvados.org/arvados.git/sdk/go/ctxlog"
+       "git.arvados.org/arvados.git/sdk/go/httpserver"
+       check "gopkg.in/check.v1"
+)
+
+// Gocheck boilerplate
+func Test(t *testing.T) {
+       check.TestingT(t)
+}
+
+// IntegrationSuite tests need an API server and an arvados-git-httpd
+// server. See GitSuite and GitoliteSuite.
+type IntegrationSuite struct {
+       tmpRepoRoot string
+       tmpWorkdir  string
+       testServer  *httpserver.Server
+       cluster     *arvados.Cluster
+}
+
+func (s *IntegrationSuite) SetUpTest(c *check.C) {
+       arvadostest.ResetEnv()
+
+       var err error
+       if s.tmpRepoRoot == "" {
+               s.tmpRepoRoot, err = ioutil.TempDir("", "githttp")
+               c.Assert(err, check.Equals, nil)
+       }
+       s.tmpWorkdir, err = ioutil.TempDir("", "githttp")
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("git", "init", "--bare", s.tmpRepoRoot+"/zzzzz-s0uqq-382brsig8rp3666.git").Output()
+       c.Assert(err, check.Equals, nil)
+       // we need git 2.28 to specify the initial branch with -b; Buster only has 2.20; so we do it in 2 steps
+       _, err = exec.Command("git", "init", s.tmpWorkdir).Output()
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("sh", "-c", "cd "+s.tmpWorkdir+" && git checkout -b main").Output()
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("sh", "-c", "cd "+s.tmpWorkdir+" && echo initial >initial && git add initial && git -c user.name=Initial -c user.email=Initial commit -am 'foo: initial commit'").CombinedOutput()
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("sh", "-c", "cd "+s.tmpWorkdir+" && git push "+s.tmpRepoRoot+"/zzzzz-s0uqq-382brsig8rp3666.git main:main").CombinedOutput()
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("sh", "-c", "cd "+s.tmpWorkdir+" && echo work >work && git add work && git -c user.name=Foo -c user.email=Foo commit -am 'workdir: test'").CombinedOutput()
+       c.Assert(err, check.Equals, nil)
+
+       if s.cluster == nil {
+               cfg, err := config.NewLoader(nil, ctxlog.TestLogger(c)).Load()
+               c.Assert(err, check.Equals, nil)
+               s.cluster, err = cfg.GetCluster("")
+               c.Assert(err, check.Equals, nil)
+
+               s.cluster.Services.GitHTTP.InternalURLs = map[arvados.URL]arvados.ServiceInstance{{Host: "localhost:0"}: {}}
+               s.cluster.TLS.Insecure = true
+               s.cluster.Git.GitCommand = "/usr/bin/git"
+               s.cluster.Git.Repositories = s.tmpRepoRoot
+               s.cluster.ManagementToken = arvadostest.ManagementToken
+       }
+
+       s.testServer = &httpserver.Server{}
+       s.testServer.Handler = httpserver.LogRequests(newHandler(context.Background(), s.cluster, "", nil))
+       err = s.testServer.Start()
+       c.Assert(err, check.Equals, nil)
+
+       _, err = exec.Command("git", "config",
+               "--file", s.tmpWorkdir+"/.git/config",
+               "credential.http://"+s.testServer.Addr+"/.helper",
+               "!cred(){ cat >/dev/null; if [ \"$1\" = get ]; then echo password=$ARVADOS_API_TOKEN; fi; };cred").Output()
+       c.Assert(err, check.Equals, nil)
+       _, err = exec.Command("git", "config",
+               "--file", s.tmpWorkdir+"/.git/config",
+               "credential.http://"+s.testServer.Addr+"/.username",
+               "none").Output()
+       c.Assert(err, check.Equals, nil)
+
+       // Clear ARVADOS_API_* env vars before starting up the server,
+       // to make sure arvados-git-httpd doesn't use them or complain
+       // about them being missing.
+       os.Unsetenv("ARVADOS_API_HOST")
+       os.Unsetenv("ARVADOS_API_HOST_INSECURE")
+       os.Unsetenv("ARVADOS_API_TOKEN")
+}
+
+func (s *IntegrationSuite) TearDownTest(c *check.C) {
+       var err error
+       if s.testServer != nil {
+               err = s.testServer.Close()
+       }
+       c.Check(err, check.Equals, nil)
+       s.testServer = nil
+
+       if s.tmpRepoRoot != "" {
+               err = os.RemoveAll(s.tmpRepoRoot)
+               c.Check(err, check.Equals, nil)
+       }
+       s.tmpRepoRoot = ""
+
+       if s.tmpWorkdir != "" {
+               err = os.RemoveAll(s.tmpWorkdir)
+               c.Check(err, check.Equals, nil)
+       }
+       s.tmpWorkdir = ""
+
+       s.cluster = nil
+}
+
+func (s *IntegrationSuite) RunGit(c *check.C, token, gitCmd, repo string, args ...string) error {
+       cwd, err := os.Getwd()
+       c.Assert(err, check.Equals, nil)
+       defer os.Chdir(cwd)
+       os.Chdir(s.tmpWorkdir)
+
+       gitargs := append([]string{
+               gitCmd, "http://" + s.testServer.Addr + "/" + repo,
+       }, args...)
+       cmd := exec.Command("git", gitargs...)
+       cmd.Env = append(os.Environ(), "ARVADOS_API_TOKEN="+token)
+       w, err := cmd.StdinPipe()
+       c.Assert(err, check.Equals, nil)
+       w.Close()
+       output, err := cmd.CombinedOutput()
+       c.Log("git ", gitargs, " => ", err)
+       c.Log(string(output))
+       if err != nil && len(output) > 0 {
+               // If messages appeared on stderr, they are more
+               // helpful than the err returned by CombinedOutput().
+               //
+               // Easier to match error strings without newlines:
+               err = errors.New(strings.Replace(string(output), "\n", " // ", -1))
+       }
+       return err
+}