added tests for babel plugin pi

SQUASHED: AUTO-COMMIT-src-client-reactive-polymorphic-identifiers-index.md,AUTO-COMMIT-src-client-reactive-test-babel-plugin-polymorphic-identifiers-babel-plugin-polymorphic-identifiers.spec.js,

Author: onsetsu

src/client/reactive/polymorphic-identifiers/index.md

@@ -1,6 +1,7 @@
 # Polymorphic-Identifiers
 
 ```JavaScript
+'pi';
 import { PIScheme } from 'polymorphic-identifiers';
 
 // example scheme

src/client/reactive/test/babel-plugin-polymorphic-identifiers/babel-plugin-polymorphic-identifiers.spec.js

@@ -0,0 +1,114 @@
+'pi'
+"enable aexpr";
+import chai, {expect} from 'src/external/chai.js';
+import sinon from 'src/external/sinon-3.2.1.js';
+import sinonChai from 'src/external/sinon-chai.js';
+chai.use(sinonChai);
+
+import { PIScheme } from 'src/client/reactive/polymorphic-identifiers/polymorphic-identifiers.js';
+import { uuid } from 'utils';
+
+describe("PI", function() {
+  
+  it("is defined", () => {
+    expect(PIScheme).to.be.ok;
+  });
+
+  it("detects accesses", () => {
+    class fourtyTwo extends PIScheme {
+      read() {
+        return 42;
+      }
+    }
+
+    expect(fourtyTwo``).to.equal(42)
+    
+  });
+
+  it("can access the `this` reference", () => {
+    class prop extends PIScheme {
+      create(strings) {
+        this.prop = strings.first;
+      }
+      read() {
+        return this.thisReference[this.prop];
+      }
+      write(value) {
+        return this.thisReference[this.prop] = value;
+      }
+    }
+
+    // read
+    const o = {
+      foo: 17,
+      func() {
+        return prop`foo`;
+      },
+      write(value) {
+        prop`bar` << value;
+      }
+    };
+    expect(o.func()).to.equal(17)
+    
+    // write
+    o.write(23)
+    expect(o.bar).to.equal(23)
+  });
+
+  it("can access locals with eval", () => {
+    class local extends PIScheme {
+      create(strings) {
+        this.local = strings.first;
+      }
+      read() {
+        return this.evalFunction(this.local);
+      }
+      write(value) {
+        const id = uuid();
+        self[id] = value;
+        try {
+          return this.evalFunction(this.local + ` = self['${id}']`);
+        } finally {
+          delete self[id];
+        }
+      }
+    }
+
+    let v1 = 'v1', v2 = 42;
+
+    // read
+    expect(local`v1`).to.equal('v1')
+    
+    // write
+    local`v2` << "v2";
+    expect(v2).to.equal('v2');
+    
+    // read/write
+    local`v2` << local`v2` + '.2';
+    expect(v2).to.equal('v2.2');
+  });
+
+  it("ignore normal tagged template strings", () => {
+    function foo() {
+      return 'bar';
+    }
+    
+    expect(foo``).to.equal('bar')
+  });
+
+});
+describe("AEs", function() {
+  
+  it("AExprs insert default constructors", () => {
+    class A {
+      constructor(prop) {
+        this.prop = prop;
+      }
+    }
+    class B extends A {}
+    
+    const b = new B(42);
+    expect(b.prop).to.equal(42);
+  });
+
+});