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Diffstat (limited to 'test/runtimes/runner/main.go')
-rw-r--r-- | test/runtimes/runner/main.go | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/test/runtimes/runner/main.go b/test/runtimes/runner/main.go new file mode 100644 index 000000000..57540e00e --- /dev/null +++ b/test/runtimes/runner/main.go @@ -0,0 +1,189 @@ +// Copyright 2019 The gVisor Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// Binary runner runs the runtime tests in a Docker container. +package main + +import ( + "encoding/csv" + "flag" + "fmt" + "io" + "os" + "sort" + "strings" + "testing" + "time" + + "gvisor.dev/gvisor/pkg/test/dockerutil" + "gvisor.dev/gvisor/pkg/test/testutil" +) + +var ( + lang = flag.String("lang", "", "language runtime to test") + image = flag.String("image", "", "docker image with runtime tests") + blacklistFile = flag.String("blacklist_file", "", "file containing blacklist of tests to exclude, in CSV format with fields: test name, bug id, comment") +) + +// Wait time for each test to run. +const timeout = 5 * time.Minute + +func main() { + flag.Parse() + if *lang == "" || *image == "" { + fmt.Fprintf(os.Stderr, "lang and image flags must not be empty\n") + os.Exit(1) + } + os.Exit(runTests()) +} + +// runTests is a helper that is called by main. It exists so that we can run +// defered functions before exiting. It returns an exit code that should be +// passed to os.Exit. +func runTests() int { + // Get tests to blacklist. + blacklist, err := getBlacklist() + if err != nil { + fmt.Fprintf(os.Stderr, "Error getting blacklist: %s\n", err.Error()) + return 1 + } + + // Construct the shared docker instance. + d := dockerutil.MakeDocker(testutil.DefaultLogger(*lang)) + defer d.CleanUp() + + // Get a slice of tests to run. This will also start a single Docker + // container that will be used to run each test. The final test will + // stop the Docker container. + tests, err := getTests(d, blacklist) + if err != nil { + fmt.Fprintf(os.Stderr, "%s\n", err.Error()) + return 1 + } + + m := testing.MainStart(testDeps{}, tests, nil, nil) + return m.Run() +} + +// getTests executes all tests as table tests. +func getTests(d *dockerutil.Docker, blacklist map[string]struct{}) ([]testing.InternalTest, error) { + // Start the container. + d.CopyFiles("/proctor", "test/runtimes/proctor/proctor") + if err := d.Spawn(dockerutil.RunOpts{ + Image: fmt.Sprintf("runtimes/%s", *image), + }, "/proctor/proctor", "--pause"); err != nil { + return nil, fmt.Errorf("docker run failed: %v", err) + } + + // Get a list of all tests in the image. + list, err := d.Exec(dockerutil.RunOpts{}, "/proctor/proctor", "--runtime", *lang, "--list") + if err != nil { + return nil, fmt.Errorf("docker exec failed: %v", err) + } + + // Calculate a subset of tests to run corresponding to the current + // shard. + tests := strings.Fields(list) + sort.Strings(tests) + indices, err := testutil.TestIndicesForShard(len(tests)) + if err != nil { + return nil, fmt.Errorf("TestsForShard() failed: %v", err) + } + + var itests []testing.InternalTest + for _, tci := range indices { + // Capture tc in this scope. + tc := tests[tci] + itests = append(itests, testing.InternalTest{ + Name: tc, + F: func(t *testing.T) { + // Is the test blacklisted? + if _, ok := blacklist[tc]; ok { + t.Skipf("SKIP: blacklisted test %q", tc) + } + + var ( + now = time.Now() + done = make(chan struct{}) + output string + err error + ) + + go func() { + fmt.Printf("RUNNING %s...\n", tc) + output, err = d.Exec(dockerutil.RunOpts{}, "/proctor/proctor", "--runtime", *lang, "--test", tc) + close(done) + }() + + select { + case <-done: + if err == nil { + fmt.Printf("PASS: %s (%v)\n\n", tc, time.Since(now)) + return + } + t.Errorf("FAIL: %s (%v):\n%s\n", tc, time.Since(now), output) + case <-time.After(timeout): + t.Errorf("TIMEOUT: %s (%v):\n%s\n", tc, time.Since(now), output) + } + }, + }) + } + + return itests, nil +} + +// getBlacklist reads the blacklist file and returns a set of test names to +// exclude. +func getBlacklist() (map[string]struct{}, error) { + blacklist := make(map[string]struct{}) + if *blacklistFile == "" { + return blacklist, nil + } + f, err := os.Open(*blacklistFile) + if err != nil { + return nil, err + } + defer f.Close() + + r := csv.NewReader(f) + + // First line is header. Skip it. + if _, err := r.Read(); err != nil { + return nil, err + } + + for { + record, err := r.Read() + if err == io.EOF { + break + } + if err != nil { + return nil, err + } + blacklist[record[0]] = struct{}{} + } + return blacklist, nil +} + +// testDeps implements testing.testDeps (an unexported interface), and is +// required to use testing.MainStart. +type testDeps struct{} + +func (f testDeps) MatchString(a, b string) (bool, error) { return a == b, nil } +func (f testDeps) StartCPUProfile(io.Writer) error { return nil } +func (f testDeps) StopCPUProfile() {} +func (f testDeps) WriteProfileTo(string, io.Writer, int) error { return nil } +func (f testDeps) ImportPath() string { return "" } +func (f testDeps) StartTestLog(io.Writer) {} +func (f testDeps) StopTestLog() error { return nil } |