fix: test failure cases on windows

.github/workflows/ci.yml

@@ -108,9 +108,7 @@ jobs:
     strategy:
       matrix:
         go-version: [1.17, 1.16]
-        # TODO: support all of these.
-        #os: [ubuntu-latest, macos-latest, windows-latest]
-        os: [ubuntu-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest, windows-latest]
         # GitHub Actions does not support arm* architectures on default
         # runners. It is possible to acomplish this with a self-hosted runner
         # if we want to add this in the future:

exporters/metric/cortex/utils/config_utils_test.go

@@ -32,6 +32,17 @@ func initYAML(yamlBytes []byte, path string) (afero.Fs, error) {
 	// Create an in-memory file system.
 	fs := afero.NewMemMapFs()
 
+	// https://github.com/spf13/viper/blob/v1.8.1/viper.go#L480
+	// absPathify uses filepath.Clean, so here you also need to use filepath.Clean
+	if filepath.IsAbs(path) {
+		path = filepath.Clean(path)
+	} else {
+		p, err := filepath.Abs(path)
+		if err == nil {
+			path = filepath.Clean(p)
+		}
+	}
+
 	// Retrieve the directory path.
 	dirPath := filepath.Dir(path)
 

exporters/metric/datadog/example_test.go

@@ -24,13 +24,16 @@ import (
 
 	"github.com/DataDog/datadog-go/statsd"
 
-	"go.opentelemetry.io/contrib/exporters/metric/datadog"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric"
 	"go.opentelemetry.io/otel/metric/global"
 	controller "go.opentelemetry.io/otel/sdk/metric/controller/basic"
 	"go.opentelemetry.io/otel/sdk/metric/processor/basic"
 	"go.opentelemetry.io/otel/sdk/metric/selector/simple"
+	"go.opentelemetry.io/otel/sdk/resource"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+
+	"go.opentelemetry.io/contrib/exporters/metric/datadog"
 )
 
 type TestUDPServer struct {
@@ -57,12 +60,15 @@ func ExampleExporter() {
 	go func() {
 		defer exp.Close()
 		processor := basic.NewFactory(selector, exp)
-		cont := controller.New(processor, controller.WithExporter(exp), controller.WithCollectPeriod(time.Second*10))
+		cont := controller.New(processor, controller.WithExporter(exp), controller.WithCollectPeriod(time.Second*10),
+			controller.WithResource(resource.Default()),
+			controller.WithResource(resource.NewSchemaless(semconv.ServiceNameKey.String("ExampleExporter"))))
 		ctx := context.Background()
 		err := cont.Start(ctx)
 		if err != nil {
 			panic(err)
 		}
+
 		defer func() { handleErr(cont.Stop(ctx)) }()
 		global.SetMeterProvider(cont)
 		meter := global.Meter("marwandist")
@@ -98,7 +104,7 @@ func ExampleExporter() {
 	}
 
 	// Output:
-	// myrecorder.max:100|g|#env:dev,l:1,service.name:unknown_service:datadog.test,telemetry.sdk.language:go,telemetry.sdk.name:opentelemetry,telemetry.sdk.version:1.2.0
+	// myrecorder.max:100|g|#env:dev,l:1,service.name:ExampleExporter,telemetry.sdk.language:go,telemetry.sdk.name:opentelemetry,telemetry.sdk.version:1.2.0
 	//
 }
 

instrumentation/github.com/aws/aws-lambda-go/otellambda/xrayconfig/xrayconfig_test.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"os"
 	"reflect"
+	"runtime"
 	"testing"
 	"time"
 
@@ -67,6 +68,12 @@ func setEnvVars() {
 	_ = os.Setenv("AWS_REGION", "us-texas-1")
 	_ = os.Setenv("AWS_LAMBDA_FUNCTION_VERSION", "$LATEST")
 	_ = os.Setenv("_X_AMZN_TRACE_ID", "Root=1-5759e988-bd862e3fe1be46a994272793;Parent=53995c3f42cd8ad8;Sampled=1")
+
+	// fix issue: "The requested service provider could not be loaded or initialized."
+	// Guess: The env for Windows in GitHub action is incomplete
+	if runtime.GOOS == "windows" && os.Getenv("SYSTEMROOT") == "" {
+		_ = os.Setenv("SYSTEMROOT", `C:\Windows`)
+	}
 }
 
 // Vars for end to end testing
@@ -161,7 +168,7 @@ func TestWrapEndToEnd(t *testing.T) {
 	customerHandler := func() (string, error) {
 		return "hello world", nil
 	}
-	mockCollector := runMockCollectorAtEndpoint(t, "localhost:4317")
+	mockCollector := runMockCollectorAtEndpoint(t, ":4317")
 	defer func() {
 		_ = mockCollector.Stop()
 	}()

instrumentation/host/host_test.go

@@ -28,9 +28,10 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
-	"go.opentelemetry.io/contrib/instrumentation/host"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric/metrictest"
+
+	"go.opentelemetry.io/contrib/instrumentation/host"
 )
 
 func getMetric(provider *metrictest.MeterProvider, name string, lbl attribute.KeyValue) float64 {
@@ -218,20 +219,18 @@ func TestHostNetwork(t *testing.T) {
 	require.NoError(t, err)
 
 	// As we are going to read the /proc file system for this info, sleep a while:
-	time.Sleep(time.Second)
-
-	provider.RunAsyncInstruments()
+	require.Eventually(t, func() bool {
+		hostAfter, err := net.IOCountersWithContext(ctx, false)
+		require.NoError(t, err)
 
-	hostAfter, err := net.IOCountersWithContext(ctx, false)
-	require.NoError(t, err)
+		return uint64(howMuch) <= hostAfter[0].BytesSent-hostBefore[0].BytesSent &&
+			uint64(howMuch) <= hostAfter[0].BytesRecv-hostBefore[0].BytesRecv
+	}, 30*time.Second, time.Second/2)
 
+	provider.RunAsyncInstruments()
 	hostTransmit := getMetric(provider, "system.network.io", host.AttributeNetworkTransmit[0])
 	hostReceive := getMetric(provider, "system.network.io", host.AttributeNetworkReceive[0])
 
-	// Check that the network transmit/receive used is greater than before:
-	require.LessOrEqual(t, uint64(howMuch), hostAfter[0].BytesSent-hostBefore[0].BytesSent)
-	require.LessOrEqual(t, uint64(howMuch), hostAfter[0].BytesRecv-hostBefore[0].BytesRecv)
-
 	// Check that the recorded measurements reflect the same change:
 	require.LessOrEqual(t, uint64(howMuch), uint64(hostTransmit)-hostBefore[0].BytesSent)
 	require.LessOrEqual(t, uint64(howMuch), uint64(hostReceive)-hostBefore[0].BytesRecv)

instrumentation/net/http/otelhttp/test/transport_test.go

@@ -19,6 +19,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -117,7 +118,15 @@ func TestTransportErrorStatus(t *testing.T) {
 		t.Errorf("expected error status code on span; got: %q", got)
 	}
 
-	if got := span.Status().Description; !strings.Contains(got, "connect: connection refused") {
+	errSubstr := "connect: connection refused"
+	if runtime.GOOS == "windows" {
+		// tls.Dial returns an error that does not contain the substring "connection refused"
+		// on Windows machines
+		//
+		// ref: "dial tcp 127.0.0.1:50115: connectex: No connection could be made because the target machine actively refused it."
+		errSubstr = "No connection could be made because the target machine actively refused it"
+	}
+	if got := span.Status().Description; !strings.Contains(got, errSubstr) {
 		t.Errorf("expected error status message on span; got: %q", got)
 	}
 }