Regres: Run latest PS testlists on parent.
This is better than running potentially two different test lists for both.
Requires caching the parent test results with the testlist's hash as a cache key.
Change-Id: Ic153e65395fc1c3f02a66bbb1df60731ce28901b
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/26557
Tested-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
diff --git a/tests/regres/main.go b/tests/regres/main.go
index 6e69161..396cada 100644
--- a/tests/regres/main.go
+++ b/tests/regres/main.go
@@ -26,12 +26,10 @@
package main
import (
- "bytes"
"encoding/json"
"errors"
"flag"
"fmt"
- "io/ioutil"
"log"
"os"
"os/exec"
@@ -46,6 +44,7 @@
"./cause"
"./git"
"./shell"
+ "./testlist"
gerrit "github.com/andygrunwald/go-gerrit"
)
@@ -60,8 +59,8 @@
testTimeout = time.Minute * 5 // timeout for a single test
buildTimeout = time.Minute * 10 // timeout for a build
dailyUpdateTestListHour = 5 // 5am
- fullTestList = "tests/regres/full-tests.json"
- ciTestList = "tests/regres/ci-tests.json"
+ fullTestListRelPath = "tests/regres/full-tests.json"
+ ciTestListRelPath = "tests/regres/ci-tests.json"
)
var (
@@ -119,19 +118,29 @@
// resolveDirs ensures that the necessary directories used can be found, and
// expands them to absolute paths.
func (r *regres) resolveDirs() error {
- for _, path := range []*string{
+ allDirs := []*string{
&r.deqpBuild,
&r.cacheRoot,
- } {
+ }
+
+ for _, path := range allDirs {
abs, err := filepath.Abs(*path)
if err != nil {
return cause.Wrap(err, "Couldn't find path '%v'", *path)
}
- if _, err := os.Stat(abs); err != nil {
- return cause.Wrap(err, "Couldn't find path '%v'", abs)
- }
*path = abs
}
+
+ if err := os.MkdirAll(r.cacheRoot, 0777); err != nil {
+ return cause.Wrap(err, "Couldn't create cache root directory")
+ }
+
+ for _, path := range allDirs {
+ if _, err := os.Stat(*path); err != nil {
+ return cause.Wrap(err, "Couldn't find path '%v'", *path)
+ }
+ }
+
return nil
}
@@ -233,25 +242,14 @@
log.Printf("Testing change '%s'\n", change.id)
- // Get the test results for the latest patchset in the change.
- latest, err := r.newTest(ciTestList, change.latest).lazyRun()
+ // Test the latest patchset in the change, diff against parent change.
+ msg, err := r.test(change)
if err != nil {
log.Println(cause.Wrap(err, "Failed to test changelist '%s'", change.latest))
time.Sleep(time.Minute)
continue
}
- // Get the test results for the changes's parent changelist.
- parent, err := r.newTest(ciTestList, change.parent).lazyRun()
- if err != nil {
- log.Println(cause.Wrap(err, "Failed to test changelist '%s'", change.parent))
- time.Sleep(time.Minute)
- continue
- }
-
- // Compare the latest patchset to the change's parent commit.
- msg := compare(parent, latest)
-
// Always include the reportHeader in the message.
// changeInfo.update() uses this header to detect whether a patchset has
// already got a test result.
@@ -273,6 +271,97 @@
}
}
+func (r *regres) test(change *changeInfo) (string, error) {
+ log.Printf("Testing latest patchset for change '%s'\n", change.id)
+ latest, testlists, err := r.testLatest(change)
+ if err != nil {
+ return "", cause.Wrap(err, "Failed to test latest change of '%v'", change.id)
+ }
+
+ log.Printf("Testing parent of change '%s'\n", change.id)
+ parent, err := r.testParent(change, testlists)
+ if err != nil {
+ return "", cause.Wrap(err, "Failed to test parent change of '%v'", change.id)
+ }
+
+ log.Println("Comparing latest patchset's results with parent")
+ msg := compare(parent, latest)
+
+ return msg, nil
+}
+
+func (r *regres) testLatest(change *changeInfo) (*CommitTestResults, testlist.Lists, error) {
+ // Get the test results for the latest patchset in the change.
+ test := r.newTest(change.latest)
+ defer test.cleanup()
+
+ if err := test.checkout(); err != nil {
+ return nil, nil, cause.Wrap(err, "Failed to checkout '%s'", change.latest)
+ }
+
+ testlists, err := test.loadTestLists(ciTestListRelPath)
+ if err != nil {
+ return nil, nil, cause.Wrap(err, "Failed to load '%s'", change.latest)
+ }
+
+ cachePath := test.resultsCachePath(testlists)
+
+ if results, err := loadCommitTestResults(cachePath); err == nil {
+ return results, testlists, nil // Use cached results
+ }
+
+ if err := test.build(); err != nil {
+ return nil, nil, cause.Wrap(err, "Failed to build '%s'", change.latest)
+ }
+
+ results, err := test.run(testlists)
+ if err != nil {
+ return nil, nil, cause.Wrap(err, "Failed to test '%s'", change.latest)
+ }
+
+ // Cache the results for future tests
+ if err := results.save(cachePath); err != nil {
+ log.Printf("Warning: Couldn't save results of test to '%v'\n", cachePath)
+ }
+
+ return results, testlists, nil
+}
+
+func (r *regres) testParent(change *changeInfo, testlists testlist.Lists) (*CommitTestResults, error) {
+ // Get the test results for the changes's parent changelist.
+ test := r.newTest(change.parent)
+ defer test.cleanup()
+
+ cachePath := test.resultsCachePath(testlists)
+
+ if results, err := loadCommitTestResults(cachePath); err == nil {
+ return results, nil // Use cached results
+ }
+
+ // Couldn't load cached results. Have to build them.
+ if err := test.checkout(); err != nil {
+ return nil, cause.Wrap(err, "Failed to checkout '%s'", change.parent)
+ }
+
+ // Build the parent change.
+ if err := test.build(); err != nil {
+ return nil, cause.Wrap(err, "Failed to build '%s'", change.parent)
+ }
+
+ // Run the tests on the parent change.
+ results, err := test.run(testlists)
+ if err != nil {
+ return nil, cause.Wrap(err, "Failed to test '%s'", change.parent)
+ }
+
+ // Store the results of the parent change to the cache.
+ if err := results.save(cachePath); err != nil {
+ log.Printf("Warning: Couldn't save results of test to '%v'\n", cachePath)
+ }
+
+ return results, nil
+}
+
func (r *regres) updateTestLists(client *gerrit.Client) error {
log.Println("Updating test lists")
@@ -282,27 +371,44 @@
}
// Get the full test results for latest master.
- t := r.newTest(fullTestList, headHash)
+ test := r.newTest(headHash)
+ defer test.cleanup()
- // Keep the checked out directory after the test is run. We want this so
- // we can build a new patchset containing the updated test lists.
- t.keepCheckouts = true
- if !r.keepCheckouts {
- defer os.RemoveAll(t.srcDir)
+ testLists, err := test.loadTestLists(fullTestListRelPath)
+ if err != nil {
+ return cause.Wrap(err, "Failed to load full test lists for '%s'", headHash)
}
- if _, err := t.run(); err != nil {
- return cause.Wrap(err, "Failed to test changelist '%s'", headHash)
+ // Couldn't load cached results. Have to build them.
+ if err := test.checkout(); err != nil {
+ return cause.Wrap(err, "Failed to checkout '%s'", headHash)
+ }
+
+ // Build the change.
+ if err := test.build(); err != nil {
+ return cause.Wrap(err, "Failed to build '%s'", headHash)
+ }
+
+ // Run the tests on the change.
+ results, err := test.run(testLists)
+ if err != nil {
+ return cause.Wrap(err, "Failed to test '%s'", headHash)
+ }
+
+ // Write out the test list status files.
+ filePaths, err := test.writeTestListsByStatus(testLists, results)
+ if err != nil {
+ return cause.Wrap(err, "Failed to write test lists by status")
}
// Stage all the updated test files.
- for _, path := range t.writtenTestLists {
+ for _, path := range filePaths {
log.Println("Staging", path)
- git.Add(t.srcDir, path)
+ git.Add(test.srcDir, path)
}
log.Println("Checking for existing test list")
- results, _, err := client.Changes.QueryChanges(&gerrit.QueryChangeOptions{
+ changes, _, err := client.Changes.QueryChanges(&gerrit.QueryChangeOptions{
QueryOptions: gerrit.QueryOptions{
Query: []string{fmt.Sprintf(`status:open+owner:"%v"`, r.gerritEmail)},
Limit: 1,
@@ -314,14 +420,14 @@
commitMsg := strings.Builder{}
commitMsg.WriteString("Regres: Update test lists @ " + headHash.String()[:8])
- if results != nil && len(*results) > 0 {
+ if results != nil && len(*changes) > 0 {
// Reuse gerrit change ID if there's already a change up for review.
- id := (*results)[0].ChangeID
+ id := (*changes)[0].ChangeID
commitMsg.WriteString("\n\n")
commitMsg.WriteString("Change-Id: " + id)
}
- if err := git.Commit(t.srcDir, commitMsg.String(), git.CommitFlags{
+ if err := git.Commit(test.srcDir, commitMsg.String(), git.CommitFlags{
Name: "SwiftShader Regression Bot",
Email: r.gerritEmail,
}); err != nil {
@@ -332,7 +438,7 @@
log.Printf("DRY RUN: post results for review")
} else {
log.Println("Pushing test results for review")
- if err := git.Push(t.srcDir, gitURL, "HEAD", "refs/for/master", git.PushFlags{
+ if err := git.Push(test.srcDir, gitURL, "HEAD", "refs/for/master", git.PushFlags{
Username: r.gerritUser,
Password: r.gerritPass,
}); err != nil {
@@ -347,12 +453,13 @@
// changeInfo holds the important information about a single, open change in
// gerrit.
type changeInfo struct {
- id string // Gerrit change ID.
- pending bool // Is this change waiting a test for the latest patchset?
- priority int // Calculated priority based on Gerrit labels.
- latest git.Hash // Git hash of the latest patchset in the change.
- parent git.Hash // Git hash of the changelist this change is based on.
- lastUpdated time.Time // Time the change was last fetched.
+ id string // Gerrit change ID.
+ pending bool // Is this change waiting a test for the latest patchset?
+ priority int // Calculated priority based on Gerrit labels.
+ latest git.Hash // Git hash of the latest patchset in the change.
+ parent git.Hash // Git hash of the changelist this change is based on.
+ lastUpdated time.Time // Time the change was last fetched.
+ commitMessage string
}
// queryChanges updates the changes map by querying gerrit for the latest open
@@ -441,21 +548,21 @@
c.pending = canTest
c.latest = git.ParseHash(change.CurrentRevision)
c.parent = git.ParseHash(current.Commit.Parents[0].Commit)
+ c.commitMessage = current.Commit.Message
return nil
}
-func (r *regres) newTest(testListPath string, commit git.Hash) *test {
+func (r *regres) newTest(commit git.Hash) *test {
srcDir := filepath.Join(r.cacheRoot, "src", commit.String())
resDir := filepath.Join(r.cacheRoot, "res", commit.String())
return &test{
- r: r,
- commit: commit,
- srcDir: srcDir,
- resDir: resDir,
- outDir: filepath.Join(srcDir, "out"),
- buildDir: filepath.Join(srcDir, "build"),
- testListPath: testListPath,
+ r: r,
+ commit: commit,
+ srcDir: srcDir,
+ resDir: resDir,
+ outDir: filepath.Join(srcDir, "out"),
+ buildDir: filepath.Join(srcDir, "build"),
}
}
@@ -467,129 +574,28 @@
outDir string // directory for SwiftShader output
buildDir string // directory for SwiftShader build
keepCheckouts bool // don't delete source & build checkouts after testing
- testListPath string // relative path to the test list .json file
-
- writtenTestLists []string // paths to test updated lists that have been written
}
-// lazyRun lazily runs the test t.
-// If the test results are not already cached, then test will setup the test
-// environment, and call t.run().
-// The results of the test will be cached into r.cacheRoot.
-func (t *test) lazyRun() (*CommitTestResults, error) {
- load := func(data []byte) (interface{}, error) {
- var res CommitTestResults
- if err := json.NewDecoder(bytes.NewReader(data)).Decode(&res); err != nil {
- return nil, err
- }
- if res.Version != dataVersion {
- return nil, errors.New("Data is from an old version")
- }
- return &res, nil
+// cleanup removes any temporary files used by the test.
+func (t *test) cleanup() {
+ if t.srcDir != "" && !t.keepCheckouts {
+ os.RemoveAll(t.srcDir)
}
-
- build := func() ([]byte, interface{}, error) {
- res, err := t.run()
-
- if err != nil {
- return nil, nil, err
- }
-
- b := bytes.Buffer{}
- enc := json.NewEncoder(&b)
- enc.SetIndent("", " ")
- if err := enc.Encode(res); err != nil {
- return nil, nil, err
- }
-
- return b.Bytes(), res, nil
- }
-
- res, err := loadOrBuild(filepath.Join(t.resDir, "results.json"), load, build)
- if err != nil {
- return nil, err
- }
-
- return res.(*CommitTestResults), nil
}
-// run executes the tests for the test environment t.
-// If the source is not cached, run will fetch the commit to be tested,
-// before building it, and then run the required tests.
-func (t *test) run() (*CommitTestResults, error) {
+// checkout clones the test's source commit into t.src.
+func (t *test) checkout() error {
if isDir(t.srcDir) && t.keepCheckouts {
log.Printf("Reusing source cache for commit '%s'\n", t.commit)
- } else {
- log.Printf("Checking out '%s'\n", t.commit)
- os.RemoveAll(t.srcDir)
- if err := git.Checkout(t.srcDir, gitURL, t.commit); err != nil {
- return nil, cause.Wrap(err, "Checking out commit '%s'", t.commit)
- }
- log.Printf("Checked out commit '%s'\n", t.commit)
- if !t.keepCheckouts {
- defer os.RemoveAll(t.srcDir)
- }
+ return nil
}
-
- if err := t.build(); err != nil {
- log.Printf("Warning: Commit '%s' failed to build. %v", t.commit, err)
- return &CommitTestResults{Version: dataVersion, Built: false}, nil
+ log.Printf("Checking out '%s'\n", t.commit)
+ os.RemoveAll(t.srcDir)
+ if err := git.Checkout(t.srcDir, gitURL, t.commit); err != nil {
+ return cause.Wrap(err, "Checking out commit '%s'", t.commit)
}
- log.Printf("Built '%s'\n", t.commit)
-
- // Load the list of tests that need executing.
- // Note: this list may vary by each commit.
- testLists, err := t.loadTestList()
- if err != nil {
- return nil, cause.Wrap(err, "Loading test lists")
- }
-
- results, err := t.runTests(testLists)
- if err != nil {
- return nil, cause.Wrap(err, "Running tests")
- }
- log.Printf("Ran tests for '%s'\n", t.commit)
-
- if t.keepCheckouts {
- if err := t.writeTestListsByStatus(testLists, results); err != nil {
- return nil, cause.Wrap(err, "Writing test lists by status")
- }
- }
-
- return results, nil
-}
-
-// loadOrBuild is a helper for building a lazy resolved cache.
-// loadOrBuild attempts to load the file at path. If the file exists and loaded
-// successfully, then load() is called with the file data, and the the result
-// object from load() is returned.
-// If the file does not exist, the file cannot be loaded, or load() returns an
-// error, then build() is called and the byte slice is saved to path, and the
-// object is returned.
-func loadOrBuild(path string,
- load func([]byte) (interface{}, error),
- build func() ([]byte, interface{}, error)) (interface{}, error) {
-
- if data, err := ioutil.ReadFile(path); err == nil {
- out, err := load(data)
- if err == nil {
- return out, nil
- }
- log.Printf("Warning: Failed to load '%s': %v", path, err)
- os.Remove(path) // Delete and rebuild.
- }
-
- data, obj, err := build()
- if err != nil {
- return nil, err
- }
-
- os.MkdirAll(filepath.Dir(path), 0777)
-
- if err := ioutil.WriteFile(path, data, 0777); err != nil {
- log.Printf("Warning: Failed to write to '%s': %v", path, err)
- }
- return obj, nil
+ log.Printf("Checked out commit '%s'\n", t.commit)
+ return nil
}
// build builds the SwiftShader source into t.buildDir.
@@ -614,8 +620,8 @@
return nil
}
-// runTests runs all the tests.
-func (t *test) runTests(testLists []TestList) (*CommitTestResults, error) {
+// run runs all the tests.
+func (t *test) run(testLists testlist.Lists) (*CommitTestResults, error) {
log.Printf("Running tests for '%s'\n", t.commit)
start := time.Now()
@@ -630,13 +636,13 @@
// Resolve the test runner
var exe string
switch list.API {
- case egl:
+ case testlist.EGL:
exe = filepath.Join(t.r.deqpBuild, "modules", "egl", "deqp-egl")
- case gles2:
+ case testlist.GLES2:
exe = filepath.Join(t.r.deqpBuild, "modules", "gles2", "deqp-gles2")
- case gles3:
+ case testlist.GLES3:
exe = filepath.Join(t.r.deqpBuild, "modules", "gles3", "deqp-gles3")
- case vulkan:
+ case testlist.Vulkan:
exe = filepath.Join(t.r.deqpBuild, "external", "vulkancts", "modules", "vulkan", "deqp-vk")
default:
return nil, fmt.Errorf("Unknown API '%v'", list.API)
@@ -704,7 +710,9 @@
return &out, nil
}
-func (t *test) writeTestListsByStatus(testLists []TestList, results *CommitTestResults) error {
+func (t *test) writeTestListsByStatus(testLists testlist.Lists, results *CommitTestResults) ([]string, error) {
+ out := []string{}
+
for _, list := range testLists {
files := map[Status]*os.File{}
ext := filepath.Ext(list.File)
@@ -715,12 +723,12 @@
os.MkdirAll(dir, 0777)
f, err := os.Create(path)
if err != nil {
- return cause.Wrap(err, "Couldn't create file '%v'", path)
+ return nil, cause.Wrap(err, "Couldn't create file '%v'", path)
}
defer f.Close()
files[status] = f
- t.writtenTestLists = append(t.writtenTestLists, path)
+ out = append(out, path)
}
for _, testName := range list.Tests {
@@ -730,7 +738,13 @@
}
}
- return nil
+ return out, nil
+}
+
+// resultsCachePath returns the path to the cache results file for the given
+// test and testlists.
+func (t *test) resultsCachePath(testLists testlist.Lists) string {
+ return filepath.Join(t.resDir, testLists.Hash())
}
// Status is an enumerator of test results.
@@ -767,6 +781,16 @@
}
}
+// Passing returns true if the task status is considered a pass.
+func (s Status) Passing() bool {
+ switch s {
+ case Pass, CompatibilityWarning, QualityWarning:
+ return true
+ default:
+ return false
+ }
+}
+
// CommitTestResults holds the results the tests across all APIs for a given
// commit. The CommitTestResults structure may be serialized to cache the
// results.
@@ -777,6 +801,41 @@
Duration time.Duration
}
+func loadCommitTestResults(path string) (*CommitTestResults, error) {
+ f, err := os.Open(path)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't open '%s' for loading test results", path)
+ }
+ defer f.Close()
+
+ var out CommitTestResults
+ if err := json.NewDecoder(f).Decode(&out); err != nil {
+ return nil, err
+ }
+ if out.Version != dataVersion {
+ return nil, errors.New("Data is from an old version")
+ }
+ return &out, nil
+}
+
+func (r *CommitTestResults) save(path string) error {
+ os.MkdirAll(filepath.Dir(path), 0777)
+
+ f, err := os.Create(path)
+ if err != nil {
+ return cause.Wrap(err, "Couldn't open '%s' for saving test results", path)
+ }
+ defer f.Close()
+
+ enc := json.NewEncoder(f)
+ enc.SetIndent("", " ")
+ if err := enc.Encode(r); err != nil {
+ return cause.Wrap(err, "Couldn't encode test results")
+ }
+
+ return nil
+}
+
// compare returns a string describing all differences between two
// CommitTestResults. This string is used as the report message posted to the
// gerrit code review.
@@ -798,9 +857,9 @@
for test, new := range new.Tests {
old, found := old.Tests[test]
switch {
- case (!found || old.Status == Pass) && new.Status.Failing():
+ case found && old.Status.Passing() && new.Status.Failing():
broken = append(broken, test)
- case (found && old.Status.Failing()) && new.Status == Pass:
+ case found && old.Status.Failing() && new.Status.Passing():
fixed = append(fixed, test)
case found && old.Status != new.Status:
changed = append(changed, test)
@@ -865,9 +924,9 @@
case old == new:
sb.WriteString(fmt.Sprintf("%s: %v\n", s.label, new))
case change == 0:
- sb.WriteString(fmt.Sprintf("%s: %v -> %v\n", s.label, old, new))
+ sb.WriteString(fmt.Sprintf("%s: %v -> %v (%+d)\n", s.label, old, new, new-old))
default:
- sb.WriteString(fmt.Sprintf("%s: %v -> %v (%+d%%)\n", s.label, old, new, change))
+ sb.WriteString(fmt.Sprintf("%s: %v -> %v (%+d %+d%%)\n", s.label, old, new, new-old, change))
}
}
@@ -990,89 +1049,30 @@
}
}
-// API is an enumerator of graphics APIs.
-type API string
-
-const (
- egl = API("egl")
- gles2 = API("gles2")
- gles3 = API("gles3")
- vulkan = API("vulkan")
-)
-
-// TestList is a list of tests to be run for a given API.
-type TestList struct {
- Name string
- File string
- API API
- Tests []string
-}
-
-// loadTestList loads the test list json file.
-// The file is first searched at {Commit}/{t.testListPath}
+// loadTestLists loads the full test lists from the json file.
+// The file is first searched at {t.srcDir}/{relPath}
// If this cannot be found, then the file is searched at the fallback path
-// {CWD}/{t.testListPath}
+// {CWD}/{relPath}
// This allows CLs to alter the list of tests to be run, as well as providing
// a default set.
-func (t *test) loadTestList() ([]TestList, error) {
- // find the test.json file in {SwiftShader}/tests/regres
- root := t.srcDir
- if isFile(filepath.Join(root, t.testListPath)) {
- log.Println("Using test list from commit")
- } else {
- // Not found there. Search locally.
- root, _ = os.Getwd()
- if isFile(filepath.Join(root, t.testListPath)) {
- log.Println("Using test list from regres")
- } else {
- return nil, fmt.Errorf("Could not find test list file '%v'", t.testListPath)
- }
+func (t *test) loadTestLists(relPath string) (testlist.Lists, error) {
+ // Seach for the test.json file in the checked out source directory.
+ if path := filepath.Join(t.srcDir, relPath); isFile(path) {
+ log.Printf("Loading test list '%v' from commit\n", relPath)
+ return testlist.Load(t.srcDir, path)
}
- jsonPath := filepath.Join(root, t.testListPath)
- i, err := ioutil.ReadFile(jsonPath)
+ // Not found there. Search locally.
+ wd, err := os.Getwd()
if err != nil {
- return nil, cause.Wrap(err, "Couldn't read test list from '%s'", jsonPath)
+ return testlist.Lists{}, cause.Wrap(err, "Couldn't get current working directory")
+ }
+ if path := filepath.Join(wd, relPath); isFile(path) {
+ log.Printf("Loading test list '%v' from regres\n", relPath)
+ return testlist.Load(wd, relPath)
}
- var groups []struct {
- Name string
- API string
- TestFile string `json:"tests"`
- }
- if err := json.NewDecoder(bytes.NewReader(i)).Decode(&groups); err != nil {
- return nil, cause.Wrap(err, "Couldn't parse '%s'", jsonPath)
- }
-
- dir := filepath.Dir(jsonPath)
-
- out := make([]TestList, len(groups))
- for i, group := range groups {
- path := filepath.Join(dir, group.TestFile)
- tests, err := ioutil.ReadFile(path)
- if err != nil {
- return nil, cause.Wrap(err, "Couldn't read '%s'", tests)
- }
- relPath, err := filepath.Rel(root, path)
- if err != nil {
- return nil, cause.Wrap(err, "Couldn't get relative path for '%s'", path)
- }
- list := TestList{
- Name: group.Name,
- File: relPath,
- API: API(group.API),
- }
- for _, line := range strings.Split(string(tests), "\n") {
- line = strings.TrimSpace(line)
- if line != "" && !strings.HasPrefix(line, "#") {
- list.Tests = append(list.Tests, line)
- }
- }
- sort.Strings(list.Tests)
- out[i] = list
- }
-
- return out, nil
+ return nil, errors.New("Couldn't find a test list file")
}
// isDir returns true if path is a file.
diff --git a/tests/regres/testlist/testlist.go b/tests/regres/testlist/testlist.go
new file mode 100644
index 0000000..5585200
--- /dev/null
+++ b/tests/regres/testlist/testlist.go
@@ -0,0 +1,120 @@
+// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
+//
+// 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.
+
+// Package testlist provides utilities for handling test lists.
+package testlist
+
+import (
+ "bytes"
+ "crypto/sha1"
+ "encoding/gob"
+ "encoding/hex"
+ "encoding/json"
+ "io/ioutil"
+ "path/filepath"
+ "sort"
+ "strings"
+
+ "../cause"
+)
+
+// API is an enumerator of graphics APIs.
+type API string
+
+// Graphics APIs.
+const (
+ EGL = API("egl")
+ GLES2 = API("gles2")
+ GLES3 = API("gles3")
+ Vulkan = API("vulkan")
+)
+
+// Group is a list of tests to be run for a single API.
+type Group struct {
+ Name string
+ File string
+ API API
+ Tests []string
+}
+
+// Lists is the full list of tests to be run.
+type Lists []Group
+
+// Hash returns a SHA1 hash of the set of tests.
+func (l Lists) Hash() string {
+ h := sha1.New()
+ if err := gob.NewEncoder(h).Encode(l); err != nil {
+ panic(cause.Wrap(err, "Could not encode testlist to produce hash"))
+ }
+ var hash [20]byte
+ copy(hash[:], h.Sum(nil))
+ return hex.EncodeToString(hash[:])
+}
+
+// Load loads the test list json file and returns the full set of tests.
+func Load(root, jsonPath string) (Lists, error) {
+ root, err := filepath.Abs(root)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't get absolute path of '%s'", root)
+ }
+
+ jsonPath, err = filepath.Abs(jsonPath)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't get absolute path of '%s'", jsonPath)
+ }
+
+ i, err := ioutil.ReadFile(jsonPath)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't read test list from '%s'", jsonPath)
+ }
+
+ var jsonGroups []struct {
+ Name string
+ API string
+ TestFile string `json:"tests"`
+ }
+ if err := json.NewDecoder(bytes.NewReader(i)).Decode(&jsonGroups); err != nil {
+ return nil, cause.Wrap(err, "Couldn't parse '%s'", jsonPath)
+ }
+
+ dir := filepath.Dir(jsonPath)
+
+ out := make(Lists, len(jsonGroups))
+ for i, jsonGroup := range jsonGroups {
+ path := filepath.Join(dir, jsonGroup.TestFile)
+ tests, err := ioutil.ReadFile(path)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't read '%s'", tests)
+ }
+ relPath, err := filepath.Rel(root, path)
+ if err != nil {
+ return nil, cause.Wrap(err, "Couldn't get relative path for '%s'", path)
+ }
+ group := Group{
+ Name: jsonGroup.Name,
+ File: relPath,
+ API: API(jsonGroup.API),
+ }
+ for _, line := range strings.Split(string(tests), "\n") {
+ line = strings.TrimSpace(line)
+ if line != "" && !strings.HasPrefix(line, "#") {
+ group.Tests = append(group.Tests, line)
+ }
+ }
+ sort.Strings(group.Tests)
+ out[i] = group
+ }
+
+ return out, nil
+}