From e2f472d732bec10634611723d1aff6f4f3544898 Mon Sep 17 00:00:00 2001 From: Fedor Korotkiy Date: Sat, 22 Feb 2020 01:23:20 +0300 Subject: [PATCH] Compare benchmarks --- go.mod | 3 +- go.sum | 21 ++++ tools/testtool/commands/test_submission.go | 102 +++++++++++++++--- .../badbenchmark/private/.golangci.yml | 77 +++++++++++++ .../badbenchmark/private/badbenchmark/sum.go | 7 ++ .../private/badbenchmark/sum_solution.go | 10 ++ .../private/badbenchmark/sum_test.go | 25 +++++ .../incorrect/badbenchmark/private/go.mod | 14 +++ .../incorrect/badbenchmark/private/go.sum | 98 +++++++++++++++++ .../badbenchmark/student/badbenchmark/sum.go | 10 ++ .../student/badbenchmark/sum_test.go | 25 +++++ .../incorrect/badbenchmark/student/go.mod | 9 ++ .../incorrect/badbenchmark/student/go.sum | 53 +++++++++ 13 files changed, 439 insertions(+), 15 deletions(-) create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/.golangci.yml create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum.go create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_solution.go create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_test.go create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.mod create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.sum create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum.go create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum_test.go create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.mod create mode 100644 tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.sum diff --git a/go.mod b/go.mod index 13e7d01..51a03cc 100644 --- a/go.mod +++ b/go.mod @@ -7,7 +7,8 @@ require ( github.com/spf13/cobra v0.0.5 github.com/stretchr/testify v1.4.0 go.uber.org/goleak v1.0.0 - golang.org/x/net v0.0.0-20190620200207-3b0461eec859 + golang.org/x/net v0.0.0-20190628185345-da137c7871d7 + golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03 golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825 gopkg.in/yaml.v2 v2.2.8 ) diff --git a/go.sum b/go.sum index 51612cd..8127b7f 100644 --- a/go.sum +++ b/go.sum @@ -1,4 +1,8 @@ +cloud.google.com/go v0.0.0-20170206221025-ce650573d812/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20190129172621-c8b1d7a94ddf/go.mod h1:aJ4qN3TfrelA6NZ6AXsXRfmEVaYin3EDbSPJrKS8OXo= +github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes= +github.com/aclements/go-moremath v0.0.0-20161014184102-0ff62e0875ff/go.mod h1:idZL3yvz4kzx1dsBOAC+oYv6L92P1oFEhUXUB1A/lwQ= github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk= @@ -10,6 +14,14 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= github.com/go-resty/resty/v2 v2.1.0 h1:Z6IefCpUMfnvItVJaJXWv/pMiiD11So35QgwEELsldE= github.com/go-resty/resty/v2 v2.1.0/go.mod h1:dZGr0i9PLlaaTD4H/hoZIDjQ+r6xq8mgbRzHZf7f2J8= +github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w= +github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U= +github.com/gonum/blas v0.0.0-20181208220705-f22b278b28ac/go.mod h1:P32wAyui1PQ58Oce/KYkOqQv8cVw1zAapXOl+dRFGbc= +github.com/gonum/floats v0.0.0-20181209220543-c233463c7e82/go.mod h1:PxC8OnwL11+aosOB5+iEPoV3picfs8tUpkVd0pDo+Kg= +github.com/gonum/internal v0.0.0-20181124074243-f884aa714029/go.mod h1:Pu4dmpkhSyOzRwuXkOgAvijx4o+4YMUJJo9OvPYMkks= +github.com/gonum/lapack v0.0.0-20181123203213-e4cdc5a0bff9/go.mod h1:XA3DeT6rxh2EAE789SSiSJNqxPaC0aE9J8NTOI0Jo/A= +github.com/gonum/matrix v0.0.0-20181209220409-c518dec07be9/go.mod h1:0EXg4mc1CNP0HCqCz+K4ts155PXIlUywf0wqN+GfPZw= +github.com/googleapis/gax-go v0.0.0-20161107002406-da06d194a00e/go.mod h1:SFVmujtThgffbyetf+mdk2eWhX2bMyUtNHzFKcPA9HY= github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ= github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM= github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8= @@ -19,6 +31,7 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE= github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ= +github.com/mattn/go-sqlite3 v0.0.0-20161215041557-2d44decb4941/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc= github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0= github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y= github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic= @@ -48,12 +61,17 @@ golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8U golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs= golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= +golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI= golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= golang.org/x/net v0.0.0-20190628185345-da137c7871d7 h1:rTIdg5QFRR7XCaK4LCjBiPbx8j4DQRpdYMnGn/bJUEU= golang.org/x/net v0.0.0-20190628185345-da137c7871d7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/oauth2 v0.0.0-20170207211851-4464e7848382/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U= +golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03 h1:KBM1Z6efANgwwa1Rns+b3KRyuKhLRVC/OeHhFMFJqOA= +golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03/go.mod h1:FrqOtQDO3iMDVUtw5nNTDFpR1HUCGh00M3kj2wiSzLQ= +golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU= golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= @@ -67,6 +85,9 @@ golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825/go.mod h1:TB2adYChydJhpapK golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +google.golang.org/api v0.0.0-20170206182103-3d017632ea10/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0= +google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4= +google.golang.org/grpc v0.0.0-20170208002647-2a6bf6142e96/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= diff --git a/tools/testtool/commands/test_submission.go b/tools/testtool/commands/test_submission.go index a3e3488..4f39b45 100644 --- a/tools/testtool/commands/test_submission.go +++ b/tools/testtool/commands/test_submission.go @@ -1,6 +1,7 @@ package commands import ( + "bytes" "crypto/rand" "encoding/hex" "encoding/json" @@ -14,6 +15,7 @@ import ( "strings" "github.com/spf13/cobra" + "golang.org/x/perf/benchstat" "gitlab.com/slon/shad-go/tools/testtool" ) @@ -124,14 +126,17 @@ func testSubmission(studentRepo, privateRepo, problem string) error { log.Printf("copying go.mod, go.sum and .golangci.yml") copyFiles(privateRepo, []string{"go.mod", "go.sum", ".golangci.yml"}, tmpRepo) + log.Printf("running tests") + if err := runTests(tmpRepo, privateRepo, problem); err != nil { + return err + } + log.Printf("running linter") if err := runLinter(tmpRepo, problem); err != nil { return err } - // Run tests. - log.Printf("running tests") - return runTests(tmpRepo, problem) + return nil } // copyDir recursively copies src directory to dst. @@ -204,7 +209,7 @@ func runLinter(testDir, problem string) error { } // runTests runs all tests in directory with race detector. -func runTests(testDir, problem string) error { +func runTests(testDir, privateRepo, problem string) error { binCache, err := ioutil.TempDir("/tmp", "bincache") if err != nil { log.Fatal(err) @@ -250,20 +255,89 @@ func runTests(testDir, problem string) error { for testPkg, testBinary := range testBinaries { relPath := strings.TrimPrefix(testPkg, moduleImportPath) - cmd := exec.Command(testBinary) - if currentUserIsRoot() { - if err := sandbox(cmd); err != nil { - log.Fatal(err) + { + cmd := exec.Command(testBinary) + if currentUserIsRoot() { + if err := sandbox(cmd); err != nil { + log.Fatal(err) + } + } + + cmd.Dir = filepath.Join(testDir, relPath) + cmd.Env = []string{testtool.BinariesEnv + "=" + string(binariesJSON)} + cmd.Stdout = os.Stdout + cmd.Stderr = os.Stderr + + if err := cmd.Run(); err != nil { + return &TestFailedError{E: err} } } - cmd.Dir = filepath.Join(testDir, relPath) - cmd.Env = []string{testtool.BinariesEnv + "=" + string(binariesJSON)} - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr + { + benchCmd := exec.Command(testBinary, "-test.bench=.", "-test.run=^$") + if currentUserIsRoot() { + if err := sandbox(benchCmd); err != nil { + log.Fatal(err) + } + } - if err := cmd.Run(); err != nil { - return &TestFailedError{E: err} + var buf bytes.Buffer + + benchCmd.Dir = filepath.Join(testDir, relPath) + benchCmd.Env = []string{testtool.BinariesEnv + "=" + string(binariesJSON)} + benchCmd.Stdout = &buf + benchCmd.Stderr = os.Stderr + + if err := benchCmd.Run(); err != nil { + return &TestFailedError{E: err} + } + + if strings.Contains(buf.String(), "no tests to run") { + continue + } + + if err := compareToBaseline(testPkg, privateRepo, buf.Bytes()); err != nil { + return err + } + } + } + + return nil +} + +func noMoreThanTwoTimesWorse(old, new *benchstat.Metrics) (float64, error) { + if new.Mean > 2*old.Mean { + return 0.0, nil + } + + return 1.0, nil +} + +func compareToBaseline(testPkg, privateRepo string, run []byte) error { + var buf bytes.Buffer + + goTest := exec.Command("go", "test", "-tags", "private,solution", "-bench=.", testPkg) + goTest.Dir = privateRepo + goTest.Stdout = &buf + goTest.Stderr = os.Stderr + if err := goTest.Run(); err != nil { + return fmt.Errorf("baseline benchmark failed: %w", err) + } + + c := &benchstat.Collection{ + DeltaTest: noMoreThanTwoTimesWorse, + } + c.AddConfig("baseline.txt", buf.Bytes()) + c.AddConfig("new.txt", run) + + tables := c.Tables() + benchstat.FormatText(os.Stderr, tables) + + for _, c := range tables { + for _, r := range c.Rows { + if r.Change == -1 { + return fmt.Errorf("solution is worse than baseline on test %q", c.Metric) + } } } diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/.golangci.yml b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/.golangci.yml new file mode 100644 index 0000000..4b4d4be --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/.golangci.yml @@ -0,0 +1,77 @@ +# options for analysis running +run: + # default concurrency is a available CPU number + concurrency: 8 + + # timeout for analysis, e.g. 30s, 5m, default is 1m + deadline: 5m + + # exit code when at least one issue was found, default is 1 + issues-exit-code: 1 + + # include test files or not, default is true + tests: true + + +# output configuration options +output: + # colored-line-number|line-number|json|tab|checkstyle, default is "colored-line-number" + format: colored-line-number + + # print lines of code with issue, default is true + print-issued-lines: true + + # print linter name in the end of issue text, default is true + print-linter-name: true + + +# all available settings of specific linters +linters-settings: + govet: + # report about shadowed variables + check-shadowing: true + golint: + # minimal confidence for issues, default is 0.8 + min-confidence: 0.8 + gofmt: + # simplify code: gofmt with `-s` option, true by default + simplify: true + goimports: + # put imports beginning with prefix after 3rd-party packages; + # it's a comma-separated list of prefixes + local-prefixes: gitlab.com + +linters: + disable-all: true + enable: + - errcheck + - gofmt + - golint + - gosimple + - govet + - ineffassign + - scopelint + - staticcheck + - typecheck + - unconvert + + +issues: + # List of regexps of issue texts to exclude, empty list by default. + # But independently from this option we use default exclude patterns, + # it can be disabled by `exclude-use-default: false`. To list all + # excluded by default patterns execute `golangci-lint run --help` + exclude: + - Using the variable on range scope .* in function literal + + # Independently from option `exclude` we use default exclude patterns, + # it can be disabled by this option. To list all + # excluded by default patterns execute `golangci-lint run --help`. + # Default value for this option is true. + exclude-use-default: true + + # Maximum issues count per one linter. Set to 0 to disable. Default is 50. + max-per-linter: 0 + + # Maximum count of issues with the same text. Set to 0 to disable. Default is 3. + max-same-issues: 0 diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum.go b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum.go new file mode 100644 index 0000000..f14ecf9 --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum.go @@ -0,0 +1,7 @@ +// +build !solution + +package badbenchmark + +func Sum(a, b int64) int64 { + return 0 +} diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_solution.go b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_solution.go new file mode 100644 index 0000000..17f973c --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_solution.go @@ -0,0 +1,10 @@ +// +build solution + +package badbenchmark + +import "time" + +func Sum(a, b int64) int64 { + time.Sleep(time.Millisecond) + return a + b +} diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_test.go b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_test.go new file mode 100644 index 0000000..7ac5eb4 --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/badbenchmark/sum_test.go @@ -0,0 +1,25 @@ +package badbenchmark + +import ( + "fmt" + "math" + "testing" +) + +type testCase struct { + a, b, sum int64 +} + +func BenchmarkSum(b *testing.B) { + for i, input := range []testCase{ + {a: 2, b: 2, sum: 4}, + {a: 2, b: -2, sum: 0}, + {a: math.MaxInt64, b: 1, sum: math.MinInt64}, + } { + b.Run(fmt.Sprint(i), func(b *testing.B) { + for i := 0; i < b.N; i++ { + _ = Sum(input.a, input.b) + } + }) + } +} diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.mod b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.mod new file mode 100644 index 0000000..51a03cc --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.mod @@ -0,0 +1,14 @@ +module gitlab.com/slon/shad-go + +go 1.13 + +require ( + github.com/go-resty/resty/v2 v2.1.0 + github.com/spf13/cobra v0.0.5 + github.com/stretchr/testify v1.4.0 + go.uber.org/goleak v1.0.0 + golang.org/x/net v0.0.0-20190628185345-da137c7871d7 + golang.org/x/perf v0.0.0-20191209155426-36b577b0eb03 + golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825 + gopkg.in/yaml.v2 v2.2.8 +) diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.sum b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.sum new file mode 100644 index 0000000..8127b7f --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/private/go.sum @@ -0,0 +1,98 @@ +cloud.google.com/go v0.0.0-20170206221025-ce650573d812/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20190129172621-c8b1d7a94ddf/go.mod h1:aJ4qN3TfrelA6NZ6AXsXRfmEVaYin3EDbSPJrKS8OXo= +github.com/aclements/go-gg v0.0.0-20170118225347-6dbb4e4fefb0/go.mod h1:55qNq4vcpkIuHowELi5C8e+1yUHtoLoOUR9QU5j7Tes= +github.com/aclements/go-moremath v0.0.0-20161014184102-0ff62e0875ff/go.mod h1:idZL3yvz4kzx1dsBOAC+oYv6L92P1oFEhUXUB1A/lwQ= +github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= +github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE= +github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk= +github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk= +github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE= +github.com/davecgh/go-spew v1.1.0/go.mod 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b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum.go @@ -0,0 +1,10 @@ +// +build !solution + +package badbenchmark + +import "time" + +func Sum(a, b int64) int64 { + time.Sleep(time.Millisecond * 10) + return a + b +} diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum_test.go b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum_test.go new file mode 100644 index 0000000..7ac5eb4 --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/badbenchmark/sum_test.go @@ -0,0 +1,25 @@ +package badbenchmark + +import ( + "fmt" + "math" + "testing" +) + +type testCase struct { + a, b, sum int64 +} + +func BenchmarkSum(b *testing.B) { + for i, input := range []testCase{ + {a: 2, b: 2, sum: 4}, + {a: 2, b: -2, sum: 0}, + {a: math.MaxInt64, b: 1, sum: math.MinInt64}, + } { + b.Run(fmt.Sprint(i), func(b *testing.B) { + for i := 0; i < b.N; i++ { + _ = Sum(input.a, input.b) + } + }) + } +} diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.mod b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.mod new file mode 100644 index 0000000..395a3ee --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.mod @@ -0,0 +1,9 @@ +module gitlab.com/slon/shad-go + +go 1.13 + +require ( + github.com/spf13/cobra v0.0.5 + github.com/stretchr/testify v1.4.0 + golang.org/x/tools v0.0.0-20200125223703-d33eef8e6825 +) diff --git a/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.sum b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.sum new file mode 100644 index 0000000..9d8b8ff --- /dev/null +++ b/tools/testtool/testdata/submissions/incorrect/badbenchmark/student/go.sum @@ -0,0 +1,53 @@ +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/armon/consul-api 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v0.0.5 h1:f0B+LkLX6DtmRH1isoNA9VTtNUK9K8xYd28JNNfOv/s= +github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU= +github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo= +github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg= +github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4= +github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s= +github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= +github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk= +github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod 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