diff --git a/config/directory_test.go b/config/directory_test.go
new file mode 100644
index 000000000..91430a908
--- /dev/null
+++ b/config/directory_test.go
@@ -0,0 +1,47 @@
+package config_test
+
+import (
+	"testing"
+
+	"github.com/hashicorp/terraform-plugin-testing/config"
+)
+
+func TestTestStepConfigFunc_Exec(t *testing.T) {
+	t.Parallel()
+
+	testCases := map[string]struct {
+		testStepConfigFunc    config.TestStepConfigFunc
+		testStepConfigRequest config.TestStepConfigRequest
+		expected              string
+	}{
+		"static_directory": {
+			testStepConfigFunc: config.StaticDirectory("name_of_directory"),
+			expected:           "name_of_directory",
+		},
+		"test_name_directory": {
+			testStepConfigFunc: config.TestNameDirectory(t),
+			expected:           "TestTestStepConfigFunc_Exec",
+		},
+		"test_step_directory": {
+			testStepConfigFunc: config.TestStepDirectory(t),
+			testStepConfigRequest: config.TestStepConfigRequest{
+				StepNumber: 1,
+			},
+			expected: "TestTestStepConfigFunc_Exec/1",
+		},
+	}
+
+	for name, testCase := range testCases {
+		name, testCase := name, testCase
+
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			got := testCase.testStepConfigFunc.Exec(testCase.testStepConfigRequest)
+
+			if testCase.expected != got {
+				t.Errorf("expected %s, got %s", testCase.expected, got)
+			}
+		})
+	}
+}