provisioner/file: Adding validation tests

builtin/provisioners/file/resource_provisioner_test.go

@@ -1 +1,51 @@
 package file
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform/config"
+	"github.com/hashicorp/terraform/terraform"
+)
+
+func TestResourceProvisioner_impl(t *testing.T) {
+	var _ terraform.ResourceProvisioner = new(ResourceProvisioner)
+}
+
+func TestResourceProvider_Validate_good(t *testing.T) {
+	c := testConfig(t, map[string]interface{}{
+		"source":      "/tmp/foo",
+		"destination": "/tmp/bar",
+	})
+	p := new(ResourceProvisioner)
+	warn, errs := p.Validate(c)
+	if len(warn) > 0 {
+		t.Fatalf("Warnings: %v", warn)
+	}
+	if len(errs) > 0 {
+		t.Fatalf("Errors: %v", errs)
+	}
+}
+
+func TestResourceProvider_Validate_bad(t *testing.T) {
+	c := testConfig(t, map[string]interface{}{
+		"source": "nope",
+	})
+	p := new(ResourceProvisioner)
+	warn, errs := p.Validate(c)
+	if len(warn) > 0 {
+		t.Fatalf("Warnings: %v", warn)
+	}
+	if len(errs) == 0 {
+		t.Fatalf("Should have errors")
+	}
+}
+
+func testConfig(
+	t *testing.T,
+	c map[string]interface{}) *terraform.ResourceConfig {
+	r, err := config.NewRawConfig(c)
+	if err != nil {
+		t.Fatalf("bad: %s", err)
+	}
+	return terraform.NewResourceConfig(r)
+}