if err := file.AtomicCopy(filepath.Join("testdata", filepath.Base(filename)), tempDir, filepath.Base(filename)); err != nil {
					t.Fatal(err)
				}
			}

			cfg := pluginConfig{
				mountedCNINetDir: tempDir,
				cniConfName:      c.specifiedConfName,
				chainedCNIPlugin: c.chainedCNIPlugin,
			}
			var expectedFilepath string
			if len(c.expectedConfName) > 0 {