Add envvar switch to run integration tests

Only run integration tests when ENDURO_PP_INTEGRATION_TEST is "true" to
avoid slow running (>1s) tests when they aren't necessary.

Makefile

@@ -94,7 +94,7 @@ list-ignored-packages:
 
 pre-commit: # @HELP Check that code is ready to commit.
 pre-commit:
-	$(MAKE) -j \
+	ENDURO_PP_INTEGRATION_TEST=1 $(MAKE) -j \
 	golines \
 	gosec \
 	lint \
@@ -124,7 +124,7 @@ test: $(GOTESTSUM)
 
 test-ci: # @HELP Run all tests in CI with coverage and the race detector.
 test-ci:
-	$(MAKE) test GOTEST_FLAGS="-race -coverprofile=covreport -covermode=atomic"
+	ENDURO_PP_INTEGRATION_TEST=1 $(MAKE) test GOTEST_FLAGS="-race -coverprofile=covreport -covermode=atomic"
 
 test-race: # @HELP Run all tests with the race detector.
 test-race:

internal/integration/integration_test.go

@@ -2,7 +2,10 @@ package integration_test
 
 import (
 	"context"
+	"os"
 	"path/filepath"
+	"slices"
+	"strings"
 	"testing"
 	"time"
 
@@ -135,6 +138,15 @@ func (env *testEnv) copyTestTransfer(name string) {
 }
 
 func TestIntegration(t *testing.T) {
+	truthy := []string{"1", "t", "true"}
+	v := strings.ToLower(os.Getenv("ENDURO_PP_INTEGRATION_TEST"))
+	if !slices.Contains(truthy, v) {
+		t.Skipf(
+			"Set ENDURO_PP_INTEGRATION_TEST={%s} to run this test.",
+			strings.Join(truthy, ","),
+		)
+	}
+
 	ctx := context.Background()
 	temporalServer := setUpTemporal(ctx, t)