Fix Install feature gates not needing 5 new tests

Install feature gates require entirely new jobs to be created that
execise the new feature. New tests may be added and existing tests
are usually updated to account for the new feature. Adjust the
feature gate promotion verification code to account for that.

Author: sadasu

tools/codegen/cmd/featuregate-test-analyzer.go

@@ -284,8 +284,9 @@ func (o *FeatureGateTestAnalyzerOptions) Run(ctx context.Context) error {
 			md.Text("")
 		}
 
-		// Only add blocking errors to the error list (warnings don't fail the job)
-		errs = append(errs, groupErrorsByCategory(blockingResults)...)
+		if len(blockingErrors) > 0 {
+			errs = append(errs, blockingErrors...)
+		}
 		featureGateHTMLData = append(featureGateHTMLData, buildHTMLFeatureGateData(enabledFeatureGate, testingResults, blockingErrors, release))
 
 	}
@@ -303,7 +304,10 @@ func (o *FeatureGateTestAnalyzerOptions) Run(ctx context.Context) error {
 		}
 	}
 
-	return errors.Join(errs...)
+	if len(errs) > 0 {
+		return fmt.Errorf("feature gate promotion validation errors:\n%w", errors.Join(errs...))
+	}
+	return nil
 }
 
 func topologyDisplayName(topology string) string {
@@ -437,12 +441,22 @@ func checkIfTestingIsSufficient(featureGate string, testingResults map[JobVarian
 		}
 
 		if len(testedVariant.TestResults) < requiredNumberOfTests {
-			results = append(results, ValidationResult{
-				Error: fmt.Errorf("error: only %d tests found, need at least %d for %q on %v",
-					len(testedVariant.TestResults), requiredNumberOfTests, featureGate, jobVariant),
-				IsWarning: isOptional,
-				Category:  CategoryInsufficientTests,
-			})
+			if strings.Contains(featureGate, "Install") {
+				results = append(results, ValidationResult{
+					Error: fmt.Errorf("info: %d tests found for %q on %v",
+						len(testedVariant.TestResults), featureGate, jobVariant),
+					IsWarning: true,
+					IsInfo:    true,
+					Category:  CategoryInsufficientTests,
+				})
+			} else {
+				results = append(results, ValidationResult{
+					Error: fmt.Errorf("error: only %d tests found, need at least %d for %q on %v",
+						len(testedVariant.TestResults), requiredNumberOfTests, featureGate, jobVariant),
+					IsWarning: isOptional,
+					Category:  CategoryInsufficientTests,
+				})
+			}
 		}
 
 		for _, testResults := range testedVariant.TestResults {

tools/codegen/cmd/root.go

@@ -61,7 +61,7 @@ var rootCmd = &cobra.Command{
 func main() {
 	err := rootCmd.Execute()
 	if err != nil {
-		klog.Fatalf("Error running codegen: %v", err)
+		klog.Fatalf("%v", err)
 	}
 }