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https://github.com/golang/go
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[dev.typeparams] test: add expected failure mechanism
This CL changes the existing excluded-test mechanism into a known-failure mechanism instead. That is, it runs the test regardless, but only reports if it failed (or succeeded) unexpectedly. It also splits the known failures list into fine-grain failure lists for types2, types2 w/ 32-bit target, -G=3, and unified. Updates #46704. Change-Id: I1213cbccf1bab6a92d9bfcf0d971a2554249bbff Reviewed-on: https://go-review.googlesource.com/c/go/+/332551 Trust: Matthew Dempsky <mdempsky@google.com> Trust: Dan Scales <danscales@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Dan Scales <danscales@google.com> Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Matthew Dempsky
parent
cd00499c61
commit
49ade6b298
274
test/run.go
274
test/run.go
@ -42,7 +42,7 @@ var (
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linkshared = flag.Bool("linkshared", false, "")
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updateErrors = flag.Bool("update_errors", false, "update error messages in test file based on compiler output")
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runoutputLimit = flag.Int("l", defaultRunOutputLimit(), "number of parallel runoutput tests to run")
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force = flag.Bool("f", false, "run expected-failure generics tests rather than skipping them")
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force = flag.Bool("f", false, "ignore expected-failure test lists")
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generics = flag.String("G", defaultGLevels, "a comma-separated list of -G compiler flags to test with")
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shard = flag.Int("shard", 0, "shard index to run. Only applicable if -shards is non-zero.")
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@ -175,8 +175,15 @@ func main() {
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status = "FAIL"
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}
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if test.err != nil {
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status = "FAIL"
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errStr = test.err.Error()
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if test.expectFail {
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errStr += " (expected)"
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} else {
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status = "FAIL"
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}
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} else if test.expectFail {
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status = "FAIL"
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errStr = "unexpected success"
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}
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if status == "FAIL" {
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failed = true
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@ -321,11 +328,45 @@ type test struct {
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tempDir string
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err error
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// expectFail indicates whether the (overall) test recipe is
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// expected to fail under the current test configuration (e.g., -G=3
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// or GOEXPERIMENT=unified).
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expectFail bool
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}
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// usesTypes2 reports whether the compiler uses types2 for this test
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// configuration (irrespective of flags specified by the test itself).
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func (t *test) usesTypes2() bool { return unifiedEnabled || t.glevel != 0 }
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// initExpectFail initializes t.expectFail based on the build+test
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// configuration. It should only be called for tests known to use
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// types2.
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func (t *test) initExpectFail() {
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if *force {
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return
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}
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failureSets := []map[string]bool{types2Failures}
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// Note: gccgo supports more 32-bit architectures than this, but
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// hopefully the 32-bit failures are fixed before this matters.
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switch goarch {
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case "386", "arm", "mips", "mipsle":
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failureSets = append(failureSets, types2Failures32Bit)
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}
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if unifiedEnabled {
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failureSets = append(failureSets, unifiedFailures)
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} else {
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failureSets = append(failureSets, g3Failures)
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}
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filename := strings.Replace(t.goFileName(), "\\", "/", -1) // goFileName() uses \ on Windows
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for _, set := range failureSets {
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if set[filename] {
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t.expectFail = true
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return
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}
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}
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}
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func startTests(dir, gofile string, glevels []int) []*test {
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tests := make([]*test, len(glevels))
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@ -556,17 +597,6 @@ func (t *test) run() {
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close(t.donec)
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}()
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if t.usesTypes2() && !*force {
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// Files excluded from types2 testing.
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filename := strings.Replace(t.goFileName(), "\\", "/", -1) // goFileName() uses \ on Windows
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if excludedFiles[filename] {
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if *verbose {
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fmt.Printf("excl\t%s\n", filename)
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}
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return
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}
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}
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srcBytes, err := ioutil.ReadFile(t.goFileName())
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if err != nil {
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t.err = err
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@ -703,12 +733,6 @@ func (t *test) run() {
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// at the specified -G level. If so, it may update flags as
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// necessary to test with -G.
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validForGLevel := func(tool Tool) bool {
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if !t.usesTypes2() {
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// tests should always pass when run w/o types2 (i.e., using the
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// legacy typechecker).
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return true
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}
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hasGFlag := false
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for _, flag := range flags {
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if strings.Contains(flag, "-G") {
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@ -724,6 +748,14 @@ func (t *test) run() {
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return false
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}
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if t.glevel == 0 && !hasGFlag && !unifiedEnabled {
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// tests should always pass when run w/o types2 (i.e., using the
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// legacy typechecker).
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return true
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}
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t.initExpectFail()
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switch tool {
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case Build, Run:
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// ok; handled in goGcflags
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@ -2071,103 +2103,123 @@ func overlayDir(dstRoot, srcRoot string) error {
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// List of files that the compiler cannot errorcheck with the new typechecker (compiler -G option).
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// Temporary scaffolding until we pass all the tests at which point this map can be removed.
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//
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// TODO(mdempsky): Split exclude list to disambiguate whether the
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// failure is within types2, -G=3, or unified.
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var excludedFiles = map[string]bool{
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"directive.go": true, // misplaced compiler directive checks
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"float_lit3.go": true, // types2 reports extra errors
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"import1.go": true, // types2 reports extra errors
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"import6.go": true, // issue #43109
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"initializerr.go": true, // types2 reports extra errors
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"linkname2.go": true, // error reported by noder (not running for types2 errorcheck test)
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"notinheap.go": true, // types2 doesn't report errors about conversions that are invalid due to //go:notinheap
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"printbig.go": true, // large untyped int passed to print (32-bit)
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"shift1.go": true, // issue #42989
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"typecheck.go": true, // invalid function is not causing errors when called
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"writebarrier.go": true, // correct diagnostics, but different lines (probably irgen's fault)
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var types2Failures = setOf(
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"directive.go", // misplaced compiler directive checks
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"float_lit3.go", // types2 reports extra errors
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"import1.go", // types2 reports extra errors
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"import6.go", // issue #43109
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"initializerr.go", // types2 reports extra errors
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"linkname2.go", // error reported by noder (not running for types2 errorcheck test)
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"notinheap.go", // types2 doesn't report errors about conversions that are invalid due to //go:notinheap
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"shift1.go", // issue #42989
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"typecheck.go", // invalid function is not causing errors when called
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"interface/private.go": true, // types2 phrases errors differently (doesn't use non-spec "private" term)
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"interface/private.go", // types2 phrases errors differently (doesn't use non-spec "private" term)
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"fixedbugs/bug114.go": true, // large untyped int passed to println (32-bit)
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"fixedbugs/bug176.go": true, // types2 reports all errors (pref: types2)
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"fixedbugs/bug195.go": true, // types2 reports slightly different (but correct) bugs
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"fixedbugs/bug228.go": true, // types2 doesn't run when there are syntax errors
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"fixedbugs/bug231.go": true, // types2 bug? (same error reported twice)
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"fixedbugs/bug255.go": true, // types2 reports extra errors
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"fixedbugs/bug374.go": true, // types2 reports extra errors
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"fixedbugs/bug385_32.go": true, // types2 doesn't produce missing error "type .* too large" (32-bit specific)
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"fixedbugs/bug388.go": true, // types2 not run due to syntax errors
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"fixedbugs/bug412.go": true, // types2 produces a follow-on error
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"fixedbugs/bug176.go", // types2 reports all errors (pref: types2)
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"fixedbugs/bug195.go", // types2 reports slightly different (but correct) bugs
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"fixedbugs/bug228.go", // types2 doesn't run when there are syntax errors
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"fixedbugs/bug231.go", // types2 bug? (same error reported twice)
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"fixedbugs/bug255.go", // types2 reports extra errors
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"fixedbugs/bug374.go", // types2 reports extra errors
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"fixedbugs/bug388.go", // types2 not run due to syntax errors
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"fixedbugs/bug412.go", // types2 produces a follow-on error
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"fixedbugs/issue10700.go": true, // types2 reports ok hint, but does not match regexp
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"fixedbugs/issue11590.go": true, // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue11610.go": true, // types2 not run after syntax errors
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"fixedbugs/issue11614.go": true, // types2 reports an extra error
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"fixedbugs/issue14520.go": true, // missing import path error by types2
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"fixedbugs/issue16133.go": true, // types2 doesn't use package path for qualified identifiers when package name is ambiguous
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"fixedbugs/issue16428.go": true, // types2 reports two instead of one error
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"fixedbugs/issue17038.go": true, // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue17270.go": true, // ICE in irgen
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"fixedbugs/issue17645.go": true, // multiple errors on same line
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"fixedbugs/issue18331.go": true, // missing error about misuse of //go:noescape (irgen needs code from noder)
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"fixedbugs/issue18419.go": true, // types2 reports
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"fixedbugs/issue19012.go": true, // multiple errors on same line
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"fixedbugs/issue20174.go": true, // ICE due to width not calculated (probably irgen's fault)
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"fixedbugs/issue20233.go": true, // types2 reports two instead of one error (pref: compiler)
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"fixedbugs/issue20245.go": true, // types2 reports two instead of one error (pref: compiler)
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"fixedbugs/issue20250.go": true, // correct diagnostics, but different lines (probably irgen's fault)
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"fixedbugs/issue21979.go": true, // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue23305.go": true, // large untyped int passed to println (32-bit)
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"fixedbugs/issue23732.go": true, // types2 reports different (but ok) line numbers
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"fixedbugs/issue25958.go": true, // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue28079b.go": true, // types2 reports follow-on errors
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"fixedbugs/issue28268.go": true, // types2 reports follow-on errors
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"fixedbugs/issue31053.go": true, // types2 reports "unknown field" instead of "cannot refer to unexported field"
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"fixedbugs/issue33460.go": true, // types2 reports alternative positions in separate error
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"fixedbugs/issue42058a.go": true, // types2 doesn't report "channel element type too large"
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"fixedbugs/issue42058b.go": true, // types2 doesn't report "channel element type too large"
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"fixedbugs/issue42284.go": true, // unified formats important constant expression differently in diagnostics
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"fixedbugs/issue4232.go": true, // types2 reports (correct) extra errors
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"fixedbugs/issue4452.go": true, // types2 reports (correct) extra errors
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"fixedbugs/issue4510.go": true, // types2 reports different (but ok) line numbers
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"fixedbugs/issue5609.go": true, // types2 needs a better error message
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"fixedbugs/issue7525b.go": true, // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525c.go": true, // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525d.go": true, // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525e.go": true, // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525.go": true, // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue9691.go": true, // "cannot assign to int(.autotmp_4)" (probably irgen's fault)
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"fixedbugs/issue10700.go", // types2 reports ok hint, but does not match regexp
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"fixedbugs/issue11590.go", // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue11610.go", // types2 not run after syntax errors
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"fixedbugs/issue11614.go", // types2 reports an extra error
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"fixedbugs/issue14520.go", // missing import path error by types2
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"fixedbugs/issue16133.go", // types2 doesn't use package path for qualified identifiers when package name is ambiguous
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"fixedbugs/issue16428.go", // types2 reports two instead of one error
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"fixedbugs/issue17038.go", // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue17645.go", // multiple errors on same line
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"fixedbugs/issue18331.go", // missing error about misuse of //go:noescape (irgen needs code from noder)
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"fixedbugs/issue18419.go", // types2 reports
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"fixedbugs/issue19012.go", // multiple errors on same line
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"fixedbugs/issue20233.go", // types2 reports two instead of one error (pref: compiler)
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"fixedbugs/issue20245.go", // types2 reports two instead of one error (pref: compiler)
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"fixedbugs/issue21979.go", // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue23732.go", // types2 reports different (but ok) line numbers
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"fixedbugs/issue25958.go", // types2 doesn't report a follow-on error (pref: types2)
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"fixedbugs/issue28079b.go", // types2 reports follow-on errors
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"fixedbugs/issue28268.go", // types2 reports follow-on errors
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"fixedbugs/issue31053.go", // types2 reports "unknown field" instead of "cannot refer to unexported field"
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"fixedbugs/issue33460.go", // types2 reports alternative positions in separate error
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"fixedbugs/issue42058a.go", // types2 doesn't report "channel element type too large"
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"fixedbugs/issue42058b.go", // types2 doesn't report "channel element type too large"
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"fixedbugs/issue4232.go", // types2 reports (correct) extra errors
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"fixedbugs/issue4452.go", // types2 reports (correct) extra errors
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"fixedbugs/issue4510.go", // types2 reports different (but ok) line numbers
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"fixedbugs/issue5609.go", // types2 needs a better error message
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"fixedbugs/issue7525b.go", // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525c.go", // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525d.go", // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525e.go", // types2 reports init cycle error on different line - ok otherwise
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"fixedbugs/issue7525.go", // types2 reports init cycle error on different line - ok otherwise
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)
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// tests that rely on -m diagnostics, which currently differ with -G=3
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//
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// TODO(mdempsky): Triage, though most of the issues seem to fall into:
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var types2Failures32Bit = setOf(
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"printbig.go", // large untyped int passed to print (32-bit)
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"fixedbugs/bug114.go", // large untyped int passed to println (32-bit)
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"fixedbugs/issue23305.go", // large untyped int passed to println (32-bit)
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"fixedbugs/bug385_32.go", // types2 doesn't produce missing error "type .* too large" (32-bit specific)
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)
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var g3Failures = setOf(
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// TODO: Triage tests without explicit failure explanations. From a
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// cursory inspection, they mostly fall into:
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// - Anonymous result parameters given different names (e.g., ~r0 vs ~r1)
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// - Some escape analysis diagnostics being printed without position information
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// - Some expressions printed differently (e.g., "int(100)" instead
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// of "100" or "&composite literal" instead of "&[4]int{...}").
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"closure3.go": true,
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"escape2.go": true,
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"escape2n.go": true,
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"escape4.go": true,
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"escape_calls.go": true,
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"escape_field.go": true,
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"escape_iface.go": true,
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"escape_indir.go": true,
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"escape_level.go": true,
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"escape_map.go": true,
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"escape_param.go": true,
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"escape_slice.go": true,
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"escape_struct_param1.go": true,
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"escape_struct_param2.go": true,
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"fixedbugs/issue12006.go": true,
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"fixedbugs/issue13799.go": true,
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"fixedbugs/issue21709.go": true,
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"fixedbugs/issue31573.go": true,
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"fixedbugs/issue37837.go": true,
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"fixedbugs/issue39292.go": true,
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"fixedbugs/issue7921.go": true,
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"inline.go": true,
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"closure3.go", // prints "s escapes to heap" without line number
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"escape2.go",
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"escape2n.go",
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"escape4.go", // prints "1 escapes to heap" without line number
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"escape_calls.go",
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"escape_field.go",
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"escape_iface.go",
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"escape_indir.go",
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"escape_level.go",
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"escape_map.go",
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"escape_param.go",
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"escape_slice.go",
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"escape_struct_param1.go",
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"escape_struct_param2.go",
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"writebarrier.go", // correct diagnostics, but different lines (probably irgen's fault)
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"fixedbugs/issue12006.go",
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"fixedbugs/issue13799.go",
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"fixedbugs/issue17270.go", // ICE in irgen
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"fixedbugs/issue20174.go", // ICE due to width not calculated (probably irgen's fault)
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"fixedbugs/issue20250.go", // correct diagnostics, but different lines (probably irgen's fault)
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"fixedbugs/issue21709.go",
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"fixedbugs/issue31573.go",
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"fixedbugs/issue37837.go",
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"fixedbugs/issue39292.go",
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"fixedbugs/issue7921.go", // prints "composite literal does not escape" but test expects "[]byte{...} does not escape"
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"fixedbugs/issue9691.go", // "cannot assign to int(.autotmp_4)" (probably irgen's fault)
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"typeparam/nested.go", // -G=3 doesn't support function-local types with generics
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)
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var unifiedFailures = setOf(
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"closure3.go", // unified IR numbers closures differently than -d=inlfuncswithclosures
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"escape4.go", // unified IR can inline f5 and f6; test doesn't expect this
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"inline.go", // unified IR reports function literal diagnostics on different lines than -d=inlfuncswithclosures
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"fixedbugs/issue42284.go", // prints "T(0) does not escape", but test expects "a.I(a.T(0)) does not escape"
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"fixedbugs/issue7921.go", // prints "… escapes to heap", but test expects "string(…) escapes to heap"
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)
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func setOf(keys ...string) map[string]bool {
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m := make(map[string]bool, len(keys))
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for _, key := range keys {
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m[key] = true
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}
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return m
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}
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// splitQuoted splits the string s around each instance of one or more consecutive
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@ -1,4 +1,4 @@
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// run -gcflags=all="-d=unified -G"
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// run -gcflags=-G=3
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// Copyright 2021 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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