snapshot of https://github.com/grpc/grpc-go.git (master, 2026-09-15; blobs > 131072B omitted)

orca/server_metrics_test.go

@@ -0,0 +1,175 @@
+/*
+ *
+ * Copyright 2023 gRPC authors.
+ *
+ * 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 orca
+
+import (
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"google.golang.org/grpc/internal/grpctest"
+)
+
+type s struct {
+	grpctest.Tester
+}
+
+func Test(t *testing.T) {
+	grpctest.RunSubTests(t, s{})
+}
+
+func (s) TestServerMetrics_Setters(t *testing.T) {
+	smr := NewServerMetricsRecorder()
+
+	smr.SetCPUUtilization(0.1)
+	smr.SetMemoryUtilization(0.2)
+	smr.SetApplicationUtilization(0.3)
+	smr.SetQPS(0.4)
+	smr.SetEPS(0.5)
+	smr.SetNamedUtilization("x", 0.6)
+
+	want := &ServerMetrics{
+		CPUUtilization: 0.1,
+		MemUtilization: 0.2,
+		AppUtilization: 0.3,
+		QPS:            0.4,
+		EPS:            0.5,
+		Utilization:    map[string]float64{"x": 0.6},
+		NamedMetrics:   map[string]float64{},
+		RequestCost:    map[string]float64{},
+	}
+
+	got := smr.ServerMetrics()
+	if d := cmp.Diff(got, want); d != "" {
+		t.Fatalf("unexpected server metrics: -got +want: %v", d)
+	}
+}
+
+func (s) TestServerMetrics_Deleters(t *testing.T) {
+	smr := NewServerMetricsRecorder()
+
+	smr.SetCPUUtilization(0.1)
+	smr.SetMemoryUtilization(0.2)
+	smr.SetApplicationUtilization(0.3)
+	smr.SetQPS(0.4)
+	smr.SetEPS(0.5)
+	smr.SetNamedUtilization("x", 0.6)
+	smr.SetNamedUtilization("y", 0.7)
+
+	// Now delete everything except named_utilization "y".
+	smr.DeleteCPUUtilization()
+	smr.DeleteMemoryUtilization()
+	smr.DeleteApplicationUtilization()
+	smr.DeleteQPS()
+	smr.DeleteEPS()
+	smr.DeleteNamedUtilization("x")
+
+	want := &ServerMetrics{
+		CPUUtilization: -1,
+		MemUtilization: -1,
+		AppUtilization: -1,
+		QPS:            -1,
+		EPS:            -1,
+		Utilization:    map[string]float64{"y": 0.7},
+		NamedMetrics:   map[string]float64{},
+		RequestCost:    map[string]float64{},
+	}
+
+	got := smr.ServerMetrics()
+	if d := cmp.Diff(got, want); d != "" {
+		t.Fatalf("unexpected server metrics: -got +want: %v", d)
+	}
+}
+
+func (s) TestServerMetrics_Setters_Range(t *testing.T) {
+	smr := NewServerMetricsRecorder()
+
+	smr.SetCPUUtilization(0.1)
+	smr.SetMemoryUtilization(0.2)
+	smr.SetApplicationUtilization(0.3)
+	smr.SetQPS(0.4)
+	smr.SetEPS(0.5)
+	smr.SetNamedUtilization("x", 0.6)
+
+	// Negatives for all these fields should be ignored.
+	smr.SetCPUUtilization(-2)
+	smr.SetMemoryUtilization(-3)
+	smr.SetApplicationUtilization(-4)
+	smr.SetQPS(-0.1)
+	smr.SetEPS(-0.6)
+	smr.SetNamedUtilization("x", -2)
+
+	// Memory and named utilizations over 1 are ignored.
+	smr.SetMemoryUtilization(1.1)
+	smr.SetNamedUtilization("x", 1.1)
+
+	want := &ServerMetrics{
+		CPUUtilization: 0.1,
+		MemUtilization: 0.2,
+		AppUtilization: 0.3,
+		QPS:            0.4,
+		EPS:            0.5,
+		Utilization:    map[string]float64{"x": 0.6},
+		NamedMetrics:   map[string]float64{},
+		RequestCost:    map[string]float64{},
+	}
+
+	got := smr.ServerMetrics()
+	if d := cmp.Diff(got, want); d != "" {
+		t.Fatalf("unexpected server metrics: -got +want: %v", d)
+	}
+}
+
+func (s) TestServerMetrics_Merge(t *testing.T) {
+	sm1 := &ServerMetrics{
+		CPUUtilization: 0.1,
+		MemUtilization: 0.2,
+		AppUtilization: 0.3,
+		QPS:            -1,
+		EPS:            0,
+		Utilization:    map[string]float64{"x": 0.6},
+		NamedMetrics:   map[string]float64{"y": 0.2},
+		RequestCost:    map[string]float64{"a": 0.1},
+	}
+
+	sm2 := &ServerMetrics{
+		CPUUtilization: -1,
+		AppUtilization: 0,
+		QPS:            0.9,
+		EPS:            20,
+		Utilization:    map[string]float64{"x": 0.5, "y": 0.4},
+		NamedMetrics:   map[string]float64{"x": 0.1},
+		RequestCost:    map[string]float64{"a": 0.2},
+	}
+
+	want := &ServerMetrics{
+		CPUUtilization: 0.1,
+		MemUtilization: 0,
+		AppUtilization: 0,
+		QPS:            0.9,
+		EPS:            20,
+		Utilization:    map[string]float64{"x": 0.5, "y": 0.4},
+		NamedMetrics:   map[string]float64{"x": 0.1, "y": 0.2},
+		RequestCost:    map[string]float64{"a": 0.2},
+	}
+
+	sm1.merge(sm2)
+	if d := cmp.Diff(sm1, want); d != "" {
+		t.Fatalf("unexpected server metrics: -got +want: %v", d)
+	}
+}