test: execute all tests in parallel and override HTTP client

Author: Kirdock

.github/workflows/tests.yml

@@ -22,33 +22,8 @@ jobs:
         run: go test -tags=unit -v ./...
 
   integration-tests:
-    name: Integration Tests - ${{ matrix.config.name }}
+    name: Integration Tests
     runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        # several tests are split into chunks with about 20 tests
-        # A dynamic matrix can't be used because there is a limit of 256 entries
-        config:
-          - { name: "app", path: "./dynatrace/api/app/..." }
-          - { name: "automation", path: "./dynatrace/api/automation/..." }
-          - { name: "cluster", path: "./dynatrace/api/cluster/..." }
-          - { name: "documents", path: "./dynatrace/api/documents/..." }
-          - { name: "grail", path: "./dynatrace/api/grail/..." }
-          - { name: "iam", path: "./dynatrace/api/iam/..." }
-          - { name: "openpipeline", path: "./dynatrace/api/openpipeline/..." }
-          - { name: "platform", path: "./dynatrace/api/platform/..." }
-          - { name: "service", path: "./dynatrace/api/service/..." }
-          - { name: "slo", path: "./dynatrace/api/slo/..." }
-          - { name: "v1 (a-d)", path: "$(go list ./dynatrace/api/v1/... | grep -E '^.+/dynatrace/api/v1/[a-d][^/]*/?')" }
-          - { name: "v1 (e-z)", path: "$(go list ./dynatrace/api/v1/... | grep -E '^.+/dynatrace/api/v1/[e-z][^/]*/?')" }
-          - { name: "v2", path: "./dynatrace/api/v2/..." }
-          - { name: "builtin (a-b)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[a-b][^/]*/?')" }
-          - { name: "builtin (c-e)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[c-e][^/]*/?')" }
-          - { name: "builtin (f-m)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[f-m][^/]*/?')" }
-          - { name: "builtin (n-o)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[n-o][^/]*/?')" }
-          - { name: "builtin (p-s)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[p-s][^/]*/?')" }
-          - { name: "builtin (t-z)", path: "$(go list ./dynatrace/api/builtin/... | grep -E '^.+/dynatrace/api/builtin/[t-z][^/]*/?')" }
     steps:
       - name: Set up Go
         uses: actions/setup-go@19bb51245e9c80abacb2e91cc42b33fa478b8639 # 4.2.1
@@ -62,7 +37,7 @@ jobs:
         with:
           terraform_wrapper: false
 
-      - name: Run Integration Tests - ${{ matrix.config.name }}
+      - name: Run Integration Tests
         if: success() || failure()
         env:
           GOPROXY: "https://proxy.golang.org"
@@ -75,4 +50,4 @@ jobs:
           DT_CLIENT_ID: ${{ secrets.DT_CLIENT_ID }}
           DT_CLIENT_SECRET: ${{ secrets.DT_CLIENT_SECRET }}
           DT_ACCOUNT_ID: ${{ secrets.DT_ACCOUNT_ID }}
-        run: go test -tags=integration -v -p 1 ${{ matrix.config.path }}
+        run: go test -tags=integration -v ./...

dynatrace/rest/platform_request.go

@@ -9,9 +9,11 @@ import (
 	"regexp"
 	"strings"
 	"sync"
+	"time"
 
 	"github.com/dynatrace-oss/terraform-provider-dynatrace/dynatrace/rest/logging"
 	"github.com/dynatrace-oss/terraform-provider-dynatrace/provider/version"
+	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/clientcredentials"
 
 	"github.com/dynatrace/dynatrace-configuration-as-code-core/api/auth"
@@ -49,6 +51,16 @@ func configureCommonRestClient(restClient *rest.Client) (*rest.Client, error) {
 	return restClient, nil
 }
 
+func setHttpClientContext(ctx context.Context) context.Context {
+	return context.WithValue(ctx, oauth2.HTTPClient, &http.Client{
+		Transport: &http.Transport{
+			MaxIdleConns:        100,
+			MaxIdleConnsPerHost: 100,
+			IdleConnTimeout:     90 * time.Second,
+		},
+	})
+}
+
 func CreatePlatformOAuthClient(ctx context.Context, u string, credentials *Credentials) (*rest.Client, error) {
 	parsedURL, err := url.Parse(u)
 	if err != nil {
@@ -59,6 +71,7 @@ func CreatePlatformOAuthClient(ctx context.Context, u string, credentials *Crede
 		ClientSecret: credentials.OAuth.ClientSecret,
 		TokenURL:     evalTokenURL(parsedURL.String()),
 	}
+	ctx = setHttpClientContext(ctx)
 	httpClient := auth.NewOAuthClient(ctx, &oauthConfig)
 
 	opts := []rest.Option{