Update for Chai v4.0

Closes #157. Closes #198.

Author: meeber

.travis.yml

@@ -4,9 +4,9 @@ node_js:
     - 4
     - stable
 env:
-  # Can't figure out how to DRY this up: http://stackoverflow.com/q/22397300/3191
   - CHAI_VERSION=^2.1.2
   - CHAI_VERSION=^3.0.0
+  - CHAI_VERSION=^4.0.0
 script:
   - npm run lint
   - npm run test-travis

lib/chai-as-promised.js

@@ -101,6 +101,7 @@ module.exports = (chai, utils) => {
         );
 
         module.exports.transferPromiseness(this, derivedPromise);
+        return this;
     });
 
     property("rejected", function () {
@@ -123,6 +124,7 @@ module.exports = (chai, utils) => {
         );
 
         module.exports.transferPromiseness(this, derivedPromise);
+        return this;
     });
 
     method("rejectedWith", function (errorLike, errMsgMatcher, message) {
@@ -134,9 +136,8 @@ module.exports = (chai, utils) => {
         if (errorLike === undefined && errMsgMatcher === undefined &&
             message === undefined) {
             /* eslint-disable no-unused-expressions */
-            this.rejected;
+            return this.rejected;
             /* eslint-enable no-unused-expressions */
-            return;
         }
 
         if (message !== undefined) {
@@ -220,14 +221,17 @@ module.exports = (chai, utils) => {
         );
 
         module.exports.transferPromiseness(this, derivedPromise);
+        return this;
     });
 
     property("eventually", function () {
         utils.flag(this, "eventually", true);
+        return this;
     });
 
     method("notify", function (done) {
         doNotify(getBasePromise(this), done);
+        return this;
     });
 
     method("become", function (value, message) {
@@ -243,7 +247,7 @@ module.exports = (chai, utils) => {
 
     methodNames.forEach(methodName => {
         Assertion.overwriteMethod(methodName, originalMethod => function () {
-            doAsserterAsyncAndAddThen(originalMethod, this, arguments);
+            return doAsserterAsyncAndAddThen(originalMethod, this, arguments);
         });
     });
 
@@ -260,15 +264,15 @@ module.exports = (chai, utils) => {
             Assertion.overwriteChainableMethod(
                 getterName,
                 originalMethod => function () {
-                    doAsserterAsyncAndAddThen(originalMethod, this, arguments);
+                    return doAsserterAsyncAndAddThen(originalMethod, this, arguments);
                 },
                 originalGetter => function () {
-                    doAsserterAsyncAndAddThen(originalGetter, this);
+                    return doAsserterAsyncAndAddThen(originalGetter, this);
                 }
             );
         } else {
             Assertion.overwriteProperty(getterName, originalGetter => function () {
-                doAsserterAsyncAndAddThen(originalGetter, this);
+                return doAsserterAsyncAndAddThen(originalGetter, this);
             });
         }
     });
@@ -278,7 +282,7 @@ module.exports = (chai, utils) => {
         // `eventually`, or if we've already fulfilled the promise (see below).
         if (!utils.flag(assertion, "eventually")) {
             asserter.apply(assertion, args);
-            return;
+            return assertion;
         }
 
         const derivedPromise = getBasePromise(assertion).then(value => {
@@ -299,6 +303,7 @@ module.exports = (chai, utils) => {
         });
 
         module.exports.transferPromiseness(assertion, derivedPromise);
+        return assertion;
     }
 
     // ### Now use the `Assertion` framework to build an `assert` interface.

package.json

@@ -32,10 +32,10 @@
     "eslint": "^3.19.0"
   },
   "peerDependencies": {
-    "chai": ">= 2.1.2 < 4"
+    "chai": ">= 2.1.2 < 5"
   },
   "devDependencies": {
-    "chai": "^3.5.0",
+    "chai": "^4.0.2",
     "coffee-script": "1.10.0",
     "istanbul": "0.4.5",
     "mocha": "^3.4.2"

test/should-eventually.coffee

@@ -47,9 +47,6 @@ describe "Fulfillment value assertions:", =>
             it ".eventually.not.deep.equal({ foo: 'bar' })", (done) =>
                 fulfilledPromise(foo: "baz").should.eventually.not.deep.equal(foo: "bar").notify(done)
                 return
-            it ".eventually.have.deep.property('foo.bar')", (done) =>
-                fulfilledPromise(foo: bar: "baz").should.eventually.have.deep.property("foo.bar", "baz").notify(done)
-                return
             it ".eventually.contain('foo')", (done) =>
                 fulfilledPromise(["foo", "bar"]).should.eventually.contain("foo").notify(done)
                 return
@@ -72,6 +69,11 @@ describe "Fulfillment value assertions:", =>
                 fulfilledPromise([]).should.eventually.be.an.instanceOf(Array).notify(done)
                 return
 
+            if Object.prototype.should.nested
+                it ".eventually.have.nested.property('foo.bar')", (done) =>
+                    fulfilledPromise(foo: bar: "baz").should.eventually.have.nested.property("foo.bar", "baz").notify(done)
+                    return
+
     describe "Chaining:", =>
         it ".eventually.be.ok.and.equal(42)", (done) =>
             fulfilledPromise(42).should.eventually.be.ok.and.equal(42).notify(done)