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assert_equals.go
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/
assert_equals.go
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package testing
import (
"fmt"
"sync"
"github.com/influxdata/flux"
"github.com/influxdata/flux/codes"
"github.com/influxdata/flux/execute"
"github.com/influxdata/flux/internal/errors"
"github.com/influxdata/flux/memory"
"github.com/influxdata/flux/plan"
"github.com/influxdata/flux/runtime"
)
const AssertEqualsKind = "assertEquals"
type AssertEqualsOpSpec struct {
Name string `json:"name"`
}
func (s *AssertEqualsOpSpec) Kind() flux.OperationKind {
return AssertEqualsKind
}
func init() {
assertEqualsSignature := runtime.MustLookupBuiltinType("testing", "assertEquals")
runtime.RegisterPackageValue("testing", "assertEquals", flux.MustValue(flux.FunctionValue(AssertEqualsKind, createAssertEqualsOpSpec, assertEqualsSignature)))
flux.RegisterOpSpec(AssertEqualsKind, newAssertEqualsOp)
plan.RegisterProcedureSpec(AssertEqualsKind, newAssertEqualsProcedure, AssertEqualsKind)
execute.RegisterTransformation(AssertEqualsKind, createAssertEqualsTransformation)
}
func createAssertEqualsOpSpec(args flux.Arguments, a *flux.Administration) (flux.OperationSpec, error) {
t, ok := args.Get("got")
if !ok {
return nil, errors.New(codes.Invalid, "argument 'got' not present")
}
p, ok := t.(*flux.TableObject)
if !ok {
return nil, errors.New(codes.Invalid, "got input to assertEquals is not a table object")
}
a.AddParent(p)
t, ok = args.Get("want")
if !ok {
return nil, errors.New(codes.Invalid, "argument 'want' not present")
}
p, ok = t.(*flux.TableObject)
if !ok {
return nil, errors.New(codes.Invalid, "want input to assertEquals is not a table object")
}
a.AddParent(p)
name, err := args.GetRequiredString("name")
if err != nil {
return nil, err
}
return &AssertEqualsOpSpec{Name: name}, nil
}
func newAssertEqualsOp() flux.OperationSpec {
return new(AssertEqualsOpSpec)
}
type AssertEqualsProcedureSpec struct {
plan.DefaultCost
Name string
}
func (s *AssertEqualsProcedureSpec) Kind() plan.ProcedureKind {
return AssertEqualsKind
}
func (s *AssertEqualsProcedureSpec) Copy() plan.ProcedureSpec {
ns := *s
return &ns
}
func newAssertEqualsProcedure(qs flux.OperationSpec, pa plan.Administration) (plan.ProcedureSpec, error) {
spec, ok := qs.(*AssertEqualsOpSpec)
if !ok {
return nil, errors.Newf(codes.Internal, "invalid spec type %T", qs)
}
return &AssertEqualsProcedureSpec{Name: spec.Name}, nil
}
type AssertEqualsTransformation struct {
execute.ExecutionNode
mu sync.Mutex
gotParent *assertEqualsParentState
wantParent *assertEqualsParentState
keysMatched int
unequal bool
err error
d execute.Dataset
cache execute.TableBuilderCache
a *memory.Allocator
name string
}
type AssertEqualsError struct {
msg string
}
func (e *AssertEqualsError) Error() string {
return e.msg
}
func (e *AssertEqualsError) Assertion() bool {
return true
}
type assertEqualsParentState struct {
id execute.DatasetID
mark execute.Time
processing execute.Time
ntables int
finished bool
}
func createAssertEqualsTransformation(id execute.DatasetID, mode execute.AccumulationMode, spec plan.ProcedureSpec, a execute.Administration) (execute.Transformation, execute.Dataset, error) {
if len(a.Parents()) != 2 {
return nil, nil, errors.New(codes.Internal, "assertEquals should have exactly 2 parents")
}
cache := execute.NewTableBuilderCache(a.Allocator())
dataset := execute.NewDataset(id, mode, cache)
pspec, ok := spec.(*AssertEqualsProcedureSpec)
if !ok {
return nil, nil, errors.Newf(codes.Internal, "invalid spec type %T", spec)
}
transform := NewAssertEqualsTransformation(dataset, cache, pspec, a.Parents()[0], a.Parents()[1], a.Allocator())
return transform, dataset, nil
}
func NewAssertEqualsTransformation(d execute.Dataset, cache execute.TableBuilderCache, spec *AssertEqualsProcedureSpec, gotID, wantID execute.DatasetID, a *memory.Allocator) *AssertEqualsTransformation {
return &AssertEqualsTransformation{
gotParent: &assertEqualsParentState{id: gotID},
wantParent: &assertEqualsParentState{id: wantID},
keysMatched: 0,
unequal: false,
d: d,
cache: cache,
name: spec.Name,
a: a,
}
}
func (t *AssertEqualsTransformation) RetractTable(id execute.DatasetID, key flux.GroupKey) error {
panic("not implemented")
}
func (t *AssertEqualsTransformation) Process(id execute.DatasetID, tbl flux.Table) error {
t.mu.Lock()
defer t.mu.Unlock()
var colMap = make([]int, 0, len(tbl.Cols()))
var err error
builder, created := t.cache.TableBuilder(tbl.Key())
if id == t.wantParent.id {
t.wantParent.ntables++
} else if id == t.gotParent.id {
t.gotParent.ntables++
} else {
return errors.Newf(codes.Internal, "unexpected dataset id: %v", id)
}
if created {
colMap, err = execute.AddNewTableCols(tbl, builder, colMap)
if err != nil {
return err
}
if err := execute.AppendMappedTable(tbl, builder, colMap); err != nil {
return err
}
t.keysMatched++
} else {
t.keysMatched--
cacheTable, err := builder.Table()
if err != nil {
return err
}
if ok, err := execute.TablesEqual(cacheTable, tbl, t.a); err != nil {
return err
} else if !ok {
t.unequal = true
return &AssertEqualsError{fmt.Sprintf("test %s: tables not equal", t.name)}
}
}
return nil
}
func (t *AssertEqualsTransformation) UpdateWatermark(id execute.DatasetID, mark execute.Time) error {
t.mu.Lock()
defer t.mu.Unlock()
min := mark
if t.gotParent.id == id {
t.gotParent.mark = mark
if t.wantParent.mark < min {
min = t.wantParent.mark
}
} else if t.wantParent.id == id {
t.wantParent.mark = mark
if t.gotParent.mark < min {
min = t.gotParent.mark
}
} else {
return errors.Newf(codes.Internal, "unexpected dataset id: %v", id)
}
return t.d.UpdateWatermark(min)
}
func (t *AssertEqualsTransformation) UpdateProcessingTime(id execute.DatasetID, pt execute.Time) error {
t.mu.Lock()
defer t.mu.Unlock()
min := pt
if t.gotParent.id == id {
t.gotParent.processing = pt
if t.wantParent.processing < min {
min = t.wantParent.processing
}
} else if t.wantParent.id == id {
t.wantParent.processing = pt
if t.gotParent.processing < min {
min = t.gotParent.processing
}
} else {
return errors.Newf(codes.Internal, "unexpected dataset id: %v", id)
}
return t.d.UpdateProcessingTime(min)
}
func (t *AssertEqualsTransformation) Finish(id execute.DatasetID, err error) {
t.mu.Lock()
defer t.mu.Unlock()
if t.gotParent.id == id {
t.gotParent.finished = true
} else if t.wantParent.id == id {
t.wantParent.finished = true
} else {
t.d.Finish(errors.Newf(codes.Internal, "unexpected dataset id: %v", id))
}
if err != nil {
t.err = err
}
if t.gotParent.finished && t.wantParent.finished {
if !t.unequal {
if t.keysMatched > 0 {
t.err = &AssertEqualsError{fmt.Sprintf("test %s: unequal group key sets", t.name)}
}
if t.wantParent.ntables != t.gotParent.ntables {
t.err = &AssertEqualsError{"assertEquals streams had unequal table counts"}
}
}
t.d.Finish(t.err)
}
}