Add empty test to get correct coverage

jest.config.js

 module.exports = {
-  // roots: ['<rootDir>/src/scripts'],
+  moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
   transform: {
     "^.+\\.(ts|tsx)$": "ts-jest",
   },
-  testRegex: "/tests/.*\\.(test|spec)\\.(jsx?|tsx?|ts)$",
-  moduleFileExtensions: ["ts", "tsx", "js", "jsx", "json", "node"],
+  testRegex: "tests/.*\\.(test|spec)\\.(jsx?|tsx?|ts)$",
   collectCoverage: true,
   coverageReporters: ["text-summary"]
 };
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tests/gene-shapes.test.ts

@@ -2,9 +2,6 @@ import { arrowShape } from "../src/scripts/component/sequence/gene-shapes";
 import { scaleLinear } from "d3-scale";
 import { GeneData } from "../src/scripts/types";
 import linearGene from "../src/scripts/layout/linear-gene";
-import { line } from "d3";
-
-
 
 describe("Test gene shapes", () => {
   const data: GeneData[] = [{

tests/genome-browser.test.ts

+import GenomeBrowser from "../src/scripts/component/genome-browser";
+
+
+
+describe("Test Genome Browser", () => {
+  // const genomeBrowserComponent = GenomeBrowser();
+  test("", () => {
+
+  })
+})
\ No newline at end of file

tests/selected-chromosome.test.ts

+import SelectedChromosome from "../src/scripts/component/selected-chromosome";
+
+
+
+describe("Test Genome Browser", () => {
+  const selectedChromosomeComponent = SelectedChromosome();
+  test("", () => { })
+})
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