[cmd/mdatagen] Use own noop host implementation

.chloggen/mdatagen-complete-host.yaml

@@ -0,0 +1,25 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. otlpreceiver)
+component: cmd/mdatagen
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: Use a custom host implementation for lifecycle tests
+
+# One or more tracking issues or pull requests related to the change
+issues: [13589]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext: Use a custom noop host implementation that implements all non-deprecated, publicly-accessible interfaces implemented by the Collector service.
+
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: []

.github/workflows/utils/cspell.json

@@ -405,6 +405,7 @@
       "rrschulze",
       "runperf",
       "safelist",
+      "samplefactoryreceiver",
       "samplereceiver",
       "samplingdecision",
       "samplingprocessor",

cmd/mdatagen/go.mod

@@ -23,6 +23,7 @@ require (
 	go.opentelemetry.io/collector/receiver/receivertest v0.131.0
 	go.opentelemetry.io/collector/scraper v0.131.0
 	go.opentelemetry.io/collector/scraper/scrapertest v0.131.0
+	go.opentelemetry.io/collector/service/hostcapabilities v0.131.0
 	go.opentelemetry.io/otel v1.37.0
 	go.opentelemetry.io/otel/metric v1.37.0
 	go.opentelemetry.io/otel/sdk/metric v1.37.0
@@ -65,14 +66,15 @@ require (
 	go.opentelemetry.io/collector/pipeline/xpipeline v0.131.0 // indirect
 	go.opentelemetry.io/collector/processor/xprocessor v0.131.0 // indirect
 	go.opentelemetry.io/collector/receiver/xreceiver v0.131.0 // indirect
+	go.opentelemetry.io/collector/service v0.131.0 // indirect
 	go.opentelemetry.io/contrib/bridges/otelzap v0.12.0 // indirect
 	go.opentelemetry.io/otel/log v0.13.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.37.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
-	golang.org/x/net v0.40.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
+	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250603155806-513f23925822 // indirect
 	google.golang.org/grpc v1.74.2 // indirect
 	google.golang.org/protobuf v1.36.6 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
@@ -141,3 +143,61 @@ replace go.opentelemetry.io/collector/internal/fanoutconsumer => ../../internal/
 replace go.opentelemetry.io/collector/connector/xconnector => ../../connector/xconnector
 
 replace go.opentelemetry.io/collector/internal/telemetry => ../../internal/telemetry
+
+replace go.opentelemetry.io/collector/extension/extensiontest => ../../extension/extensiontest
+
+replace go.opentelemetry.io/collector/exporter => ../../exporter
+
+replace go.opentelemetry.io/collector/confmap/xconfmap => ../../confmap/xconfmap
+
+replace go.opentelemetry.io/collector/extension/extensionmiddleware => ../../extension/extensionmiddleware
+
+replace go.opentelemetry.io/collector/config/configmiddleware => ../../config/configmiddleware
+
+replace go.opentelemetry.io/collector/exporter/exportertest => ../../exporter/exportertest
+
+replace go.opentelemetry.io/collector/client => ../../client
+
+replace go.opentelemetry.io/collector/extension => ../../extension
+
+replace go.opentelemetry.io/collector/config/configauth => ../../config/configauth
+
+replace go.opentelemetry.io/collector/otelcol => ../../otelcol
+
+replace go.opentelemetry.io/collector/extension/extensionmiddleware/extensionmiddlewaretest => ../../extension/extensionmiddleware/extensionmiddlewaretest
+
+replace go.opentelemetry.io/collector/extension/xextension => ../../extension/xextension
+
+replace go.opentelemetry.io/collector/extension/zpagesextension => ../../extension/zpagesextension
+
+replace go.opentelemetry.io/collector/config/configretry => ../../config/configretry
+
+replace go.opentelemetry.io/collector/config/configoptional => ../../config/configoptional
+
+replace go.opentelemetry.io/collector/config/configopaque => ../../config/configopaque
+
+replace go.opentelemetry.io/collector/extension/extensionauth/extensionauthtest => ../../extension/extensionauth/extensionauthtest
+
+replace go.opentelemetry.io/collector/service => ../../service
+
+replace go.opentelemetry.io/collector/extension/extensionauth => ../../extension/extensionauth
+
+replace go.opentelemetry.io/collector/service/hostcapabilities => ../../service/hostcapabilities
+
+replace go.opentelemetry.io/collector/confmap/provider/yamlprovider => ../../confmap/provider/yamlprovider
+
+replace go.opentelemetry.io/collector/config/configtls => ../../config/configtls
+
+replace go.opentelemetry.io/collector/config/configcompression => ../../config/configcompression
+
+replace go.opentelemetry.io/collector/exporter/xexporter => ../../exporter/xexporter
+
+replace go.opentelemetry.io/collector/config/configtelemetry => ../../config/configtelemetry
+
+replace go.opentelemetry.io/collector/config/confighttp => ../../config/confighttp
+
+replace go.opentelemetry.io/collector => ../..
+
+replace go.opentelemetry.io/collector/extension/extensioncapabilities => ../../extension/extensioncapabilities
+
+replace go.opentelemetry.io/collector/pdata/xpdata => ../../pdata/xpdata

cmd/mdatagen/internal/loader.go

@@ -39,7 +39,7 @@ func LoadMetadata(filePath string) (Metadata, error) {
 		return Metadata{}, err
 	}
 
-	md := Metadata{ShortFolderName: shortFolderName(filePath), Tests: Tests{Host: "componenttest.NewNopHost()"}}
+	md := Metadata{ShortFolderName: shortFolderName(filePath), Tests: Tests{Host: "newMdatagenNopHost()"}}
 	err = conf.Unmarshal(&md)
 	if err != nil {
 		return md, err

cmd/mdatagen/internal/loader_test.go

@@ -400,7 +400,7 @@ func TestLoadMetadata(t *testing.T) {
 				},
 				ScopeName:       "go.opentelemetry.io/collector/internal/receiver/samplereceiver",
 				ShortFolderName: "sample",
-				Tests:           Tests{Host: "componenttest.NewNopHost()"},
+				Tests:           Tests{Host: "newMdatagenNopHost()"},
 			},
 		},
 		{
@@ -412,7 +412,7 @@ func TestLoadMetadata(t *testing.T) {
 				ScopeName:            "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				PackageName:          "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				ShortFolderName:      "testdata",
-				Tests:                Tests{Host: "componenttest.NewNopHost()"},
+				Tests:                Tests{Host: "newMdatagenNopHost()"},
 			},
 		},
 		{
@@ -423,7 +423,7 @@ func TestLoadMetadata(t *testing.T) {
 				ScopeName:            "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				PackageName:          "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				ShortFolderName:      "testdata",
-				Tests:                Tests{Host: "componenttest.NewNopHost()"},
+				Tests:                Tests{Host: "newMdatagenNopHost()"},
 				Status: &Status{
 					Class: "receiver",
 					Stability: map[component.StabilityLevel][]string{
@@ -442,7 +442,7 @@ func TestLoadMetadata(t *testing.T) {
 				ScopeName:            "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				PackageName:          "go.opentelemetry.io/collector/cmd/mdatagen/internal/testdata",
 				ShortFolderName:      "testdata",
-				Tests:                Tests{Host: "componenttest.NewNopHost()"},
+				Tests:                Tests{Host: "newMdatagenNopHost()"},
 				Status: &Status{
 					Class: "receiver",
 					Stability: map[component.StabilityLevel][]string{

cmd/mdatagen/internal/sampleconnector/metrics_test.go

@@ -10,7 +10,6 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"go.opentelemetry.io/collector/cmd/mdatagen/internal/sampleconnector/internal/metadata"
-	"go.opentelemetry.io/collector/component/componenttest"
 	"go.opentelemetry.io/collector/connector/connectortest"
 	"go.opentelemetry.io/collector/consumer/consumertest"
 	"go.opentelemetry.io/collector/pdata/pmetric"
@@ -24,7 +23,7 @@ func TestGeneratedMetrics(t *testing.T) {
 }
 
 func TestNopConnector(t *testing.T) {
-	connector, err := createMetricsToMetricsConnector(context.Background(), connectortest.NewNopSettings(metadata.Type), componenttest.NewNopHost(), new(consumertest.MetricsSink))
+	connector, err := createMetricsToMetricsConnector(context.Background(), connectortest.NewNopSettings(metadata.Type), newMdatagenNopHost(), new(consumertest.MetricsSink))
 	require.NoError(t, err)
 	require.False(t, connector.Capabilities().MutatesData)
 	require.NoError(t, connector.ConsumeMetrics(context.Background(), pmetric.NewMetrics()))

cmd/mdatagen/internal/samplefactoryreceiver/README.md

@@ -0,0 +1,28 @@
+# Sample Receiver
+This receiver is used for testing purposes to check the output of mdatagen.
+<!-- status autogenerated section -->
+| Status        |           |
+| ------------- |-----------|
+| Stability     | [deprecated]: profiles   |
+|               | [development]: logs   |
+|               | [beta]: traces   |
+|               | [stable]: metrics   |
+| Deprecation of profiles | [Date]: 2025-02-05   |
+|                      | [Migration Note]: no migration needed   |
+| Unsupported Platforms | freebsd, illumos |
+| Distributions | [] |
+| Warnings      | [Any additional information that should be brought to the consumer's attention](#warnings) |
+| Issues        | [![Open issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector?query=is%3Aissue%20is%3Aopen%20label%3Areceiver%2Fsamplefactory%20&label=open&color=orange&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector/issues?q=is%3Aopen+is%3Aissue+label%3Areceiver%2Fsamplefactory) [![Closed issues](https://img.shields.io/github/issues-search/open-telemetry/opentelemetry-collector?query=is%3Aissue%20is%3Aclosed%20label%3Areceiver%2Fsamplefactory%20&label=closed&color=blue&logo=opentelemetry)](https://github.com/open-telemetry/opentelemetry-collector/issues?q=is%3Aclosed+is%3Aissue+label%3Areceiver%2Fsamplefactory) |
+| [Code Owners](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#becoming-a-code-owner)    | [@dmitryax](https://www.github.com/dmitryax) |
+
+[deprecated]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecated
+[development]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#development
+[beta]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#beta
+[stable]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#stable
+[Date]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecation-information
+[Migration Note]: https://github.com/open-telemetry/opentelemetry-collector/blob/main/docs/component-stability.md#deprecation-information
+<!-- end autogenerated section -->
+
+## Warnings
+
+This is where warnings are described.

cmd/mdatagen/internal/samplefactoryreceiver/doc.go

@@ -0,0 +1,7 @@
+// Copyright The OpenTelemetry Authors
+// SPDX-License-Identifier: Apache-2.0
+
+// Generate a test metrics builder from a sample metrics set covering all configuration options.
+//go:generate mdatagen metadata.yaml
+
+package samplefactoryreceiver // import "go.opentelemetry.io/collector/cmd/mdatagen/internal/samplefactoryreceiver"