johannaojeling commented on code in PR #25565: URL: https://github.com/apache/beam/pull/25565#discussion_r1112334964
########## sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager_test.go: ########## @@ -0,0 +1,516 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 engine + +import ( + "container/heap" + "context" + "fmt" + "io" + "testing" + + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/coder" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/mtime" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/window" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/runtime/exec" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex" + "github.com/google/go-cmp/cmp" +) + +func TestElementHeap(t *testing.T) { + elements := elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: mtime.MinTimestamp}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&elements) + heap.Push(&elements, element{timestamp: 4}) + + if got, want := elements.Len(), len(elements); got != want { + t.Errorf("elements.Len() = %v, want %v", got, want) + } + if got, want := elements[0].timestamp, mtime.MinTimestamp; got != want { + t.Errorf("elements[0].timestamp = %v, want %v", got, want) + } + + wanted := []mtime.Time{mtime.MinTimestamp, mtime.ZeroTimestamp, 1, 2, 3, 4, mtime.EndOfGlobalWindowTime, mtime.MaxTimestamp} + for i, want := range wanted { + if got := heap.Pop(&elements).(element).timestamp; got != want { + t.Errorf("[%d] heap.Pop(&elements).(element).timestamp = %v, want %v", i, got, want) + } + } +} + +func TestStageState_minPendingTimestamp(t *testing.T) { + + newState := func() *stageState { + return makeStageState("test", []string{"testInput"}, nil, []string{"testOutput"}) + } + t.Run("noElements", func(t *testing.T) { + ss := newState() + got := ss.minPendingTimestamp() + want := mtime.MaxTimestamp + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + want := mtime.ZeroTimestamp - 20 + t.Run("onlyPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: want}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&ss.pending) + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("onlyInProgress", func(t *testing.T) { + ss := newState() + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "b": { + es: []element{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("minInPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + t.Run("minInProgress", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: want}, + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) +} + +func TestStageState_getUpstreamWatermark(t *testing.T) { Review Comment: ```suggestion func TestStageState_UpstreamWatermark(t *testing.T) { ``` ########## sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager_test.go: ########## @@ -0,0 +1,516 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 engine + +import ( + "container/heap" + "context" + "fmt" + "io" + "testing" + + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/coder" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/mtime" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/window" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/runtime/exec" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex" + "github.com/google/go-cmp/cmp" +) + +func TestElementHeap(t *testing.T) { + elements := elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: mtime.MinTimestamp}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&elements) + heap.Push(&elements, element{timestamp: 4}) + + if got, want := elements.Len(), len(elements); got != want { + t.Errorf("elements.Len() = %v, want %v", got, want) + } + if got, want := elements[0].timestamp, mtime.MinTimestamp; got != want { + t.Errorf("elements[0].timestamp = %v, want %v", got, want) + } + + wanted := []mtime.Time{mtime.MinTimestamp, mtime.ZeroTimestamp, 1, 2, 3, 4, mtime.EndOfGlobalWindowTime, mtime.MaxTimestamp} + for i, want := range wanted { + if got := heap.Pop(&elements).(element).timestamp; got != want { + t.Errorf("[%d] heap.Pop(&elements).(element).timestamp = %v, want %v", i, got, want) + } + } +} + +func TestStageState_minPendingTimestamp(t *testing.T) { + + newState := func() *stageState { + return makeStageState("test", []string{"testInput"}, nil, []string{"testOutput"}) + } + t.Run("noElements", func(t *testing.T) { + ss := newState() + got := ss.minPendingTimestamp() + want := mtime.MaxTimestamp + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + want := mtime.ZeroTimestamp - 20 + t.Run("onlyPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: want}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&ss.pending) + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("onlyInProgress", func(t *testing.T) { + ss := newState() + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "b": { + es: []element{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("minInPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + t.Run("minInProgress", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: want}, + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) +} + +func TestStageState_getUpstreamWatermark(t *testing.T) { + impulse := makeStageState("impulse", nil, nil, []string{"output"}) + _, up := impulse.UpstreamWatermark() + if got, want := up, mtime.MaxTimestamp; got != want { + t.Errorf("impulse.getUpstreamWatermark() = %v, want %v", got, want) + } + + dofn := makeStageState("dofn", []string{"input"}, nil, []string{"output"}) + dofn.updateUpstreamWatermark("input", 42) + + _, up = dofn.UpstreamWatermark() + if got, want := up, mtime.Time(42); got != want { + t.Errorf("dofn.getUpstreamWatermark() = %v, want %v", got, want) Review Comment: ```suggestion t.Errorf("dofn.UpstreamWatermark() = %v, want %v", got, want) ``` ########## sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager_test.go: ########## @@ -0,0 +1,516 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 engine + +import ( + "container/heap" + "context" + "fmt" + "io" + "testing" + + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/coder" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/mtime" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/window" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/runtime/exec" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex" + "github.com/google/go-cmp/cmp" +) + +func TestElementHeap(t *testing.T) { + elements := elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: mtime.MinTimestamp}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&elements) + heap.Push(&elements, element{timestamp: 4}) + + if got, want := elements.Len(), len(elements); got != want { + t.Errorf("elements.Len() = %v, want %v", got, want) + } + if got, want := elements[0].timestamp, mtime.MinTimestamp; got != want { + t.Errorf("elements[0].timestamp = %v, want %v", got, want) + } + + wanted := []mtime.Time{mtime.MinTimestamp, mtime.ZeroTimestamp, 1, 2, 3, 4, mtime.EndOfGlobalWindowTime, mtime.MaxTimestamp} + for i, want := range wanted { + if got := heap.Pop(&elements).(element).timestamp; got != want { + t.Errorf("[%d] heap.Pop(&elements).(element).timestamp = %v, want %v", i, got, want) + } + } +} + +func TestStageState_minPendingTimestamp(t *testing.T) { + + newState := func() *stageState { + return makeStageState("test", []string{"testInput"}, nil, []string{"testOutput"}) + } + t.Run("noElements", func(t *testing.T) { + ss := newState() + got := ss.minPendingTimestamp() + want := mtime.MaxTimestamp + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + want := mtime.ZeroTimestamp - 20 + t.Run("onlyPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: want}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&ss.pending) + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("onlyInProgress", func(t *testing.T) { + ss := newState() + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "b": { + es: []element{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("minInPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + t.Run("minInProgress", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: want}, + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) +} + +func TestStageState_getUpstreamWatermark(t *testing.T) { + impulse := makeStageState("impulse", nil, nil, []string{"output"}) + _, up := impulse.UpstreamWatermark() + if got, want := up, mtime.MaxTimestamp; got != want { + t.Errorf("impulse.getUpstreamWatermark() = %v, want %v", got, want) + } + + dofn := makeStageState("dofn", []string{"input"}, nil, []string{"output"}) + dofn.updateUpstreamWatermark("input", 42) + + _, up = dofn.UpstreamWatermark() + if got, want := up, mtime.Time(42); got != want { + t.Errorf("dofn.getUpstreamWatermark() = %v, want %v", got, want) + } + + flatten := makeStageState("flatten", []string{"a", "b", "c"}, nil, []string{"output"}) + flatten.updateUpstreamWatermark("a", 50) + flatten.updateUpstreamWatermark("b", 42) + flatten.updateUpstreamWatermark("c", 101) + _, up = flatten.UpstreamWatermark() + if got, want := up, mtime.Time(42); got != want { + t.Errorf("flatten.getUpstreamWatermark() = %v, want %v", got, want) Review Comment: ```suggestion t.Errorf("flatten.UpstreamWatermark() = %v, want %v", got, want) ``` ########## sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager_test.go: ########## @@ -0,0 +1,516 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 engine + +import ( + "container/heap" + "context" + "fmt" + "io" + "testing" + + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/coder" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/mtime" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/window" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/runtime/exec" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex" + "github.com/google/go-cmp/cmp" +) + +func TestElementHeap(t *testing.T) { + elements := elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: mtime.MinTimestamp}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&elements) + heap.Push(&elements, element{timestamp: 4}) + + if got, want := elements.Len(), len(elements); got != want { + t.Errorf("elements.Len() = %v, want %v", got, want) + } + if got, want := elements[0].timestamp, mtime.MinTimestamp; got != want { + t.Errorf("elements[0].timestamp = %v, want %v", got, want) + } + + wanted := []mtime.Time{mtime.MinTimestamp, mtime.ZeroTimestamp, 1, 2, 3, 4, mtime.EndOfGlobalWindowTime, mtime.MaxTimestamp} + for i, want := range wanted { + if got := heap.Pop(&elements).(element).timestamp; got != want { + t.Errorf("[%d] heap.Pop(&elements).(element).timestamp = %v, want %v", i, got, want) + } + } +} + +func TestStageState_minPendingTimestamp(t *testing.T) { + + newState := func() *stageState { + return makeStageState("test", []string{"testInput"}, nil, []string{"testOutput"}) + } + t.Run("noElements", func(t *testing.T) { + ss := newState() + got := ss.minPendingTimestamp() + want := mtime.MaxTimestamp + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + want := mtime.ZeroTimestamp - 20 + t.Run("onlyPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: want}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&ss.pending) + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("onlyInProgress", func(t *testing.T) { + ss := newState() + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "b": { + es: []element{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("minInPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + t.Run("minInProgress", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: want}, + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) +} + +func TestStageState_getUpstreamWatermark(t *testing.T) { + impulse := makeStageState("impulse", nil, nil, []string{"output"}) + _, up := impulse.UpstreamWatermark() + if got, want := up, mtime.MaxTimestamp; got != want { + t.Errorf("impulse.getUpstreamWatermark() = %v, want %v", got, want) + } + + dofn := makeStageState("dofn", []string{"input"}, nil, []string{"output"}) + dofn.updateUpstreamWatermark("input", 42) + + _, up = dofn.UpstreamWatermark() + if got, want := up, mtime.Time(42); got != want { + t.Errorf("dofn.getUpstreamWatermark() = %v, want %v", got, want) + } + + flatten := makeStageState("flatten", []string{"a", "b", "c"}, nil, []string{"output"}) + flatten.updateUpstreamWatermark("a", 50) + flatten.updateUpstreamWatermark("b", 42) + flatten.updateUpstreamWatermark("c", 101) + _, up = flatten.UpstreamWatermark() + if got, want := up, mtime.Time(42); got != want { + t.Errorf("flatten.getUpstreamWatermark() = %v, want %v", got, want) + } +} + +func TestStageState_updateWatermarks(t *testing.T) { + inputCol := "testInput" + outputCol := "testOutput" + newState := func() (*stageState, *stageState, *ElementManager) { + underTest := makeStageState("underTest", []string{inputCol}, nil, []string{outputCol}) + outStage := makeStageState("outStage", []string{outputCol}, nil, nil) + em := &ElementManager{ + consumers: map[string][]string{ + inputCol: {underTest.ID}, + outputCol: {outStage.ID}, + }, + stages: map[string]*stageState{ + outStage.ID: outStage, + underTest.ID: underTest, + }, + } + return underTest, outStage, em + } + + tests := []struct { + name string + initInput, initOutput mtime.Time + upstream, minPending, minStateHold mtime.Time + wantInput, wantOutput, wantDownstream mtime.Time + }{ + { + name: "initialized", + initInput: mtime.MinTimestamp, + initOutput: mtime.MinTimestamp, + upstream: mtime.MinTimestamp, + minPending: mtime.EndOfGlobalWindowTime, + minStateHold: mtime.EndOfGlobalWindowTime, + wantInput: mtime.MinTimestamp, // match default + wantOutput: mtime.MinTimestamp, // match upstream + wantDownstream: mtime.MinTimestamp, // match upstream + }, { + name: "upstream", + initInput: mtime.MinTimestamp, + initOutput: mtime.MinTimestamp, + upstream: mtime.ZeroTimestamp, + minPending: mtime.EndOfGlobalWindowTime, + minStateHold: mtime.EndOfGlobalWindowTime, + wantInput: mtime.ZeroTimestamp, // match upstream + wantOutput: mtime.ZeroTimestamp, // match upstream + wantDownstream: mtime.ZeroTimestamp, // match upstream + }, { + name: "useMinPending", + initInput: mtime.MinTimestamp, + initOutput: mtime.MinTimestamp, + upstream: mtime.ZeroTimestamp, + minPending: -20, + minStateHold: mtime.EndOfGlobalWindowTime, + wantInput: -20, // match minPending + wantOutput: -20, // match minPending + wantDownstream: -20, // match minPending + }, { + name: "useStateHold", + initInput: mtime.MinTimestamp, + initOutput: mtime.MinTimestamp, + upstream: mtime.ZeroTimestamp, + minPending: -20, + minStateHold: -30, + wantInput: -20, // match minPending + wantOutput: -30, // match state hold + wantDownstream: -30, // match state hold + }, { + name: "noAdvance", + initInput: 20, + initOutput: 30, + upstream: mtime.MinTimestamp, + wantInput: 20, // match original input + wantOutput: 30, // match original output + wantDownstream: mtime.MinTimestamp, // not propagated + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + ss, outStage, em := newState() + ss.input = test.initInput + ss.output = test.initOutput + ss.updateUpstreamWatermark(inputCol, test.upstream) + ss.updateWatermarks(test.minPending, test.minStateHold, em) + if got, want := ss.input, test.wantInput; got != want { + pcol, up := ss.UpstreamWatermark() + t.Errorf("ss.updateWatermarks(%v,%v); ss.input = %v, want %v (upstream %v %v)", test.minPending, test.minStateHold, got, want, pcol, up) + } + if got, want := ss.output, test.wantOutput; got != want { + pcol, up := ss.UpstreamWatermark() + t.Errorf("ss.updateWatermarks(%v,%v); ss.output = %v, want %v (upstream %v %v)", test.minPending, test.minStateHold, got, want, pcol, up) + } + _, up := outStage.UpstreamWatermark() + if got, want := up, test.wantDownstream; got != want { + t.Errorf("outStage.getUpstreamWatermark() = %v, want %v", got, want) Review Comment: ```suggestion t.Errorf("outStage.UpstreamWatermark() = %v, want %v", got, want) ``` ########## sdks/go/pkg/beam/runners/prism/internal/engine/elementmanager_test.go: ########## @@ -0,0 +1,516 @@ +// Licensed to the Apache Software Foundation (ASF) under one or more +// contributor license agreements. See the NOTICE file distributed with +// this work for additional information regarding copyright ownership. +// The ASF licenses this file to You 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 engine + +import ( + "container/heap" + "context" + "fmt" + "io" + "testing" + + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/coder" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/mtime" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/graph/window" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/runtime/exec" + "github.com/apache/beam/sdks/v2/go/pkg/beam/core/typex" + "github.com/google/go-cmp/cmp" +) + +func TestElementHeap(t *testing.T) { + elements := elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: mtime.MinTimestamp}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&elements) + heap.Push(&elements, element{timestamp: 4}) + + if got, want := elements.Len(), len(elements); got != want { + t.Errorf("elements.Len() = %v, want %v", got, want) + } + if got, want := elements[0].timestamp, mtime.MinTimestamp; got != want { + t.Errorf("elements[0].timestamp = %v, want %v", got, want) + } + + wanted := []mtime.Time{mtime.MinTimestamp, mtime.ZeroTimestamp, 1, 2, 3, 4, mtime.EndOfGlobalWindowTime, mtime.MaxTimestamp} + for i, want := range wanted { + if got := heap.Pop(&elements).(element).timestamp; got != want { + t.Errorf("[%d] heap.Pop(&elements).(element).timestamp = %v, want %v", i, got, want) + } + } +} + +func TestStageState_minPendingTimestamp(t *testing.T) { + + newState := func() *stageState { + return makeStageState("test", []string{"testInput"}, nil, []string{"testOutput"}) + } + t.Run("noElements", func(t *testing.T) { + ss := newState() + got := ss.minPendingTimestamp() + want := mtime.MaxTimestamp + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + want := mtime.ZeroTimestamp - 20 + t.Run("onlyPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + element{timestamp: mtime.EndOfGlobalWindowTime}, + element{timestamp: mtime.MaxTimestamp}, + element{timestamp: 3}, + element{timestamp: want}, + element{timestamp: 2}, + element{timestamp: mtime.ZeroTimestamp}, + element{timestamp: 1}, + } + heap.Init(&ss.pending) + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("onlyInProgress", func(t *testing.T) { + ss := newState() + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "b": { + es: []element{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + + t.Run("minInPending", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: want}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: mtime.EndOfGlobalWindowTime, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) + t.Run("minInProgress", func(t *testing.T) { + ss := newState() + ss.pending = elementHeap{ + {timestamp: 3}, + {timestamp: 2}, + {timestamp: 1}, + } + heap.Init(&ss.pending) + ss.inprogress = map[string]elements{ + "a": { + es: []element{ + {timestamp: want}, + {timestamp: mtime.EndOfGlobalWindowTime}, + {timestamp: mtime.MaxTimestamp}, + }, + minTimestamp: want, + }, + "c": { + es: []element{ + {timestamp: mtime.ZeroTimestamp}, + }, + minTimestamp: mtime.ZeroTimestamp, + }, + } + + got := ss.minPendingTimestamp() + if got != want { + t.Errorf("ss.minPendingTimestamp() = %v, want %v", got, want) + } + }) +} + +func TestStageState_getUpstreamWatermark(t *testing.T) { + impulse := makeStageState("impulse", nil, nil, []string{"output"}) + _, up := impulse.UpstreamWatermark() + if got, want := up, mtime.MaxTimestamp; got != want { + t.Errorf("impulse.getUpstreamWatermark() = %v, want %v", got, want) Review Comment: ```suggestion t.Errorf("impulse.UpstreamWatermark() = %v, want %v", got, want) ``` -- This is an automated message from the Apache Git Service. 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