diff --git a/internal/testing/provider/provider.go b/internal/testing/provider/provider.go
new file mode 100644
index 0000000..830f059
--- /dev/null
+++ b/internal/testing/provider/provider.go
@@ -0,0 +1,50 @@
+package provider
+
+import (
+	"context"
+
+	tfprovider "github.com/hashicorp/terraform-plugin-framework/provider"
+	tfresource "github.com/hashicorp/terraform-plugin-framework/resource"
+	"github.com/samber/lo"
+	"github.com/sendsmaily/terraform-provider-definednet/internal/definednet"
+	"github.com/sendsmaily/terraform-provider-definednet/internal/provider"
+)
+
+// New creates a fake provider.
+func New(client definednet.Client) *Provider {
+	return &Provider{
+		Provider: provider.New("fake")(),
+		client:   client,
+	}
+}
+
+// Provider is a fake provider.
+type Provider struct {
+	tfprovider.Provider
+
+	client    definednet.Client
+	resources []tfresource.Resource
+}
+
+var _ tfprovider.Provider = (*Provider)(nil)
+
+// WithResource configures the fake provider with a managed resource.
+func (p Provider) WithResource(res tfresource.Resource) *Provider {
+	p.resources = append(p.resources, res)
+	return &p
+}
+
+// Configure configures the fake provider with user passed options.
+func (p *Provider) Configure(ctx context.Context, req tfprovider.ConfigureRequest, resp *tfprovider.ConfigureResponse) {
+	resp.ResourceData = p.client
+	resp.DataSourceData = p.client
+}
+
+// Resources returns a slice of resources available on the fake provider.
+func (p *Provider) Resources(ctx context.Context) []func() tfresource.Resource {
+	return lo.Map(p.resources, func(res tfresource.Resource, _ int) func() tfresource.Resource {
+		return func() tfresource.Resource {
+			return res
+		}
+	})
+}