test(resources): Add tests for resourcekey validator

refactor: StringIsResourceKeyValidator ValidateMap function is refactored to increase the readibility.

Signed-off-by: gatici <[email protected]>

internal/provider/validator_resourcekey.go

@@ -37,26 +37,27 @@ func (v StringIsResourceKeyValidator) ValidateMap(ctx context.Context, req valid
 		return
 	}
 	for name, value := range resourceKey {
-		if isInt(value) {
-			_, err := strconv.Atoi(value)
-			if err != nil {
-				resp.Diagnostics.AddAttributeError(
-					req.Path,
-					"Invalid Resource revision",
-					fmt.Sprintf("value of %q should be a valid revision number or image URL: %s", name, err),
-				)
+		providedRev, err := strconv.Atoi(value)
+		if err != nil {
+			imageUrlPattern := `(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]):[\w][\w.-]{0,127}`
+			urlRegex := regexp.MustCompile(imageUrlPattern)
+			if urlRegex.MatchString(value) {
+				continue
 			}
+			resp.Diagnostics.AddAttributeError(
+				req.Path,
+				"Invalid resource value",
+				fmt.Sprintf("value of %q should be a valid revision number or image URL.", name),
+			)
 			continue
 		}
-		imageUrlPattern := `(?:[a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]):[\w][\w.-]{0,127}`
-		urlRegex := regexp.MustCompile(imageUrlPattern)
-		if urlRegex.MatchString(value) {
+		if providedRev <= 0 {
+			resp.Diagnostics.AddAttributeError(
+				req.Path,
+				"Invalid resource value",
+				fmt.Sprintf("value of %q should be a valid revision number or image URL.", name),
+			)
 			continue
 		}
-		resp.Diagnostics.AddAttributeError(
-			req.Path,
-			"Invalid image URL",
-			fmt.Sprintf("value of %q should be a valid revision number or image URL.", name),
-		)
 	}
 }

internal/provider/validator_resourcekey_test.go

@@ -4,9 +4,64 @@
 package provider_test
 
 import (
+	"context"
 	"testing"
+
+	"github.com/hashicorp/terraform-plugin-framework/schema/validator"
+	"github.com/hashicorp/terraform-plugin-framework/types"
+	"github.com/juju/terraform-provider-juju/internal/provider"
 )
 
 func TestResourceKeyValidatorValid(t *testing.T) {
+	validResources := make(map[string]string)
+	validResources["image1"] = "image/tag:v1.0.0"
+	validResources["image2"] = "123.123.123.123:123/image/tag:v1.0.0"
+	validResources["image3"] = "your-domain.com/image/tag:v1.1.1-patch1"
+	validResources["image4"] = "your_domain/image/tag:patch1"
+	validResources["image5"] = "your.domain.com/image/tag:1"
+	validResources["image6"] = "27"
+	validResources["image7"] = "1"
+	ctx := context.Background()
+
+	resourceValidator := provider.StringIsResourceKeyValidator{}
+	resourceValue, _ := types.MapValueFrom(ctx, types.StringType, validResources)
+
+	req := validator.MapRequest{
+		ConfigValue: resourceValue,
+	}
+
+	var resp validator.MapResponse
+	resourceValidator.ValidateMap(context.Background(), req, &resp)
+
+	if resp.Diagnostics.HasError() {
+		t.Errorf("errors %v", resp.Diagnostics.Errors())
+	}
+}
+
+func TestResourceKeyValidatorInvalidRevision(t *testing.T) {
+	validResources := make(map[string]string)
+	validResources["image1"] = "-10"
+	validResources["image2"] = "0"
+	validResources["image3"] = "10.5"
+	validResources["image4"] = "image/tag:"
+	validResources["image5"] = ":v1.0.0"
+	validResources["image6"] = "your-domain.com"
+	ctx := context.Background()
+
+	resourceValidator := provider.StringIsResourceKeyValidator{}
+	resourceValue, _ := types.MapValueFrom(ctx, types.StringType, validResources)
+
+	req := validator.MapRequest{
+		ConfigValue: resourceValue,
+	}
 
+	var resp validator.MapResponse
+	resourceValidator.ValidateMap(context.Background(), req, &resp)
+	err := "Invalid resource value"
+	if c := resp.Diagnostics.ErrorsCount(); c != 6 {
+		t.Errorf("expected 6 errors, got %d", c)
+	}
+	if deets := resp.Diagnostics.Errors()[0].Summary(); err != deets {
+		t.Errorf("expected error %q, got %q", err, deets)
+	}
 }