Update test folder structure

Author: mjackson

__mocks__/contextComponent.js

@@ -0,0 +1,12 @@
+const React = require("react");
+
+let context = {};
+
+const component = function() {
+  context.test = true;
+  return React.createElement("div", null, "I am a context component");
+};
+
+component.context = context;
+
+module.exports = component;

__mocks__/testComponent.js

@@ -0,0 +1,5 @@
+const React = require("react");
+
+module.exports = function() {
+  return React.createElement("div", null, "I am a test component");
+};

__tests__/mocks/contextComponent.js

@@ -0,0 +1,67 @@
+const path = require("path");
+const childProcess = require("child_process");
+
+describe("server", () => {
+  let proc;
+
+  beforeEach(() => {
+    proc = childProcess.spawn(
+      path.join(__dirname, "..", "bin", "react-stdio"),
+      {
+        stdio: "pipe"
+      }
+    );
+  });
+
+  afterEach(() => {
+    proc.kill();
+  });
+
+  it("throws an error when component is missing", done => {
+    proc.stdin.write(JSON.stringify({}));
+
+    proc.stdout.once("data", out => {
+      expect(JSON.parse(out).error).toEqual("Missing { component } in request");
+      done();
+    });
+  });
+
+  it("throws an error when component cannot be found", done => {
+    proc.stdin.write(JSON.stringify({ component: "component.js" }));
+
+    proc.stdout.once("data", out => {
+      expect(JSON.parse(out).error).toEqual(
+        "Cannot load component: component.js"
+      );
+      done();
+    });
+  });
+
+  it("renders the component", done => {
+    proc.stdin.write(
+      JSON.stringify({
+        component: path.join(__dirname, "mocks", "testComponent.js")
+      })
+    );
+
+    proc.stdout.once("data", out => {
+      expect(JSON.parse(out).html).toMatch("I am a test component");
+      done();
+    });
+  });
+
+  it("renders a component and exposes additional context", done => {
+    proc.stdin.write(
+      JSON.stringify({
+        component: path.join(__dirname, "mocks", "contextComponent.js")
+      })
+    );
+
+    proc.stdout.once("data", out => {
+      const result = JSON.parse(out);
+      expect(result.html).toMatch("I am a context component");
+      expect(result.context).toEqual({ test: true });
+      done();
+    });
+  });
+});

__tests__/mocks/testComponent.js

@@ -26,7 +26,13 @@
     "react-dom": "^15.0.1"
   },
   "devDependencies": {
-    "jest": "^21.2.1",
+    "jest": "^22.1.4",
     "readline-sync": "^1.4.1"
+  },
+  "jest": {
+    "testPathIgnorePatterns": [
+      "/node_modules/",
+      "__tests__/mocks"
+    ]
   }
 }