initial commit. phase 1 complete

frontend/node_modules/tsconfig-paths/src/__tests__/filesystem.test.ts

@@ -0,0 +1,65 @@
+import * as Filesystem from "../filesystem";
+import * as path from "path";
+
+describe("filesystem", () => {
+  const fileThatExists = path.join(__dirname, "../../package.json");
+  const fileThatNotExists = path.join(__dirname, "../../package2.json");
+
+  it("should find file that exists, sync", () => {
+    const result = Filesystem.fileExistsSync(fileThatExists);
+    // assert.equal(result, true);
+    expect(result).toBe(true);
+  });
+
+  it("should not find file that not exists, sync", () => {
+    const result = Filesystem.fileExistsSync(fileThatNotExists);
+    // assert.equal(result, false);
+    expect(result).toBe(false);
+  });
+
+  it("should find file that exists, async", (done) => {
+    Filesystem.fileExistsAsync(fileThatExists, (_err, result) => {
+      try {
+        // assert.equal(result, true);
+        expect(result).toBe(true);
+        done();
+      } catch (error) {
+        done(error);
+      }
+    });
+  });
+
+  it("should not find file that not exists, async", (done) => {
+    Filesystem.fileExistsAsync(fileThatNotExists, (_err, result) => {
+      try {
+        // assert.equal(result, false);
+        expect(result).toBe(false);
+        done();
+      } catch (error) {
+        done(error);
+      }
+    });
+  });
+
+  it("should load json, sync", () => {
+    const result = Filesystem.readJsonFromDiskSync(fileThatExists);
+    // assert.isOk(result);
+    expect(result);
+    // assert.equal(result.main, "lib/index.js");
+    expect(result.main).toBe("lib/index.js");
+  });
+
+  it("should load json, async", (done) => {
+    Filesystem.readJsonFromDiskAsync(fileThatExists, (_err, result) => {
+      try {
+        // assert.isOk(result); // Asserts that object is truthy.
+        expect(result).toBeTruthy();
+        // assert.equal(result.main, "lib/index.js");
+        expect(result.main).toBe("lib/index.js");
+        done();
+      } catch (error) {
+        done(error);
+      }
+    });
+  });
+});