jsmock - npm Package Compare versions

Comparing version 0.3.0 to 0.4.0

lib/expectation.js

 'use strict';
 
 const Action = require('./action');
+const Cardinality = require('./cardinality');
 const matcher = require('./matcher');
 const _ = require('lodash');
 
+function forceCardinality(min, max) {
+  if(this.cardinalityForced) {
+    throw new Error('Cardinality already set for the expectation');
+  } else {
+    this.cardinalityForced = true;
+    this.cardinality.set(min, max);
+  }
+}
+
+function tryUpdateCardinality(count) {
+  if(!this.cardinalityForced) {
+    if(this.actions.length === 0) {
+      if(this.count >= 0) {
+        this.cardinality.set(count, count);
+      } else {
+        this.cardinality.set(1, -1);
+      }
+    } else if (count >= 0) {
+      this.cardinality.bump(count);
+    } else {
+      this.cardinality.bump(1);
+      this.cardinality.unbound();
+    }
+  }
+}
+
 /** @class Expectation
@@ -17,3 +44,2 @@ *
 class Expectation {
-
   /**
@@ -26,2 +52,4 @@ *
     this.actions = [];
+    this.cardinality = new Cardinality(1);
+    this.cardinalityForced = false;
   }
@@ -56,13 +84,30 @@
   validate() {
-    if(this.actions.length === 0) {
-      return true;
-    }
-    return (_.findIndex(this.actions, a => !a.validate()) < 0);
+    return this.cardinality.validate();
+    // if(this.actions.length === 0) {
+    //   return this.cardinality.validate();
+    // }
+    // return (_.findIndex(this.actions, a => !a.validate()) < 0);
   }
 
+  times(count) {
+    return forceCardinality.call(this, count, count);
+  }
+
+  atLeast(count) {
+    return forceCardinality.call(this, count, -1);
+  }
+
+  atMost(count) {
+    return forceCardinality.call(this, 1, count);
+  }
+
+  between(min, max) {
+    return forceCardinality.call(this, min, max);
+  }
+
   /**
    * @param {Array} args 
    * @returns {*} 
-   * Returns true if no action was specified for expectation. If there is 
-   * an action to be executed returns result of that execution. 
+   * If no action was specified for the expectation, will return no value.
+   * If there is an action to be executed returns result of that execution. 
    * @throws {Error} 
@@ -72,4 +117,7 @@ * Throws error if none of specified actions are valid for execution
   execute(args) {
+    if(!this.cardinality.use()) {
+      throw new Error('Expectation oversaturated');
+    }
     if(this.actions.length === 0) {
-      return true;
+      return;
     }
@@ -94,16 +142,2 @@ const idx = _.findIndex(this.actions, a => a.ready());
   /** Adds a new action from provided arguments and adds it to
-   * expectation actions list.
-   * 
-   * @param {*} action 
-   * Parameter passed for Action constructor
-   * @returns {Action} 
-   * Returns newly created Action object for chaining.
-   */
-  will(action) {
-    const act = new Action(this, action);
-    this.actions.push(act);
-    return act;
-  }
-
-  /** Adds a new action from provided arguments and adds it to
    * expectation action list. Newly created Action has expected
@@ -118,2 +152,3 @@ * execution count set to 1.
   willOnce(action) {
+    tryUpdateCardinality.call(this, 1);
     this.actions.push(new Action(this, action, 1));
@@ -133,2 +168,3 @@ return this;
   willTwice(action) {
+    tryUpdateCardinality.call(this, 2);
     this.actions.push(new Action(this, action, 2));
@@ -148,2 +184,3 @@ return this;
   willRepeatedly(action) {
+    tryUpdateCardinality.call(this, -1);
     this.actions.push(new Action(this, action, -1));
@@ -150,0 +187,0 @@ return this;

package.json

 {
   "name": "jsmock",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "description": "Mocking framework for javascript",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -75,3 +75,2 @@ [![npm Package](https://img.shields.io/npm/v/jsmock.svg?style=flat-square)](https://www.npmjs.org/package/jsmock)
   .willOnce((a,b) => a * b) // First call will return multiplication of arguments
-  .will(6).times(3) // Next 3 calls will return value 6
   .willRepeteadly((a,b) => b) // All following calls will return second argument
@@ -78,0 +77,0 @@ ```

test/action.js

@@ -5,7 +5,4 @@ 'use strict';
 const Action = require('../lib/action');
+const create = require('./helper').create;
 
-function create(T) {
-  return new (Function.prototype.bind.apply(T, arguments));
-}
-
 describe('Action', () => {
@@ -12,0 +9,0 @@

test/expectation.js

@@ -69,19 +69,27 @@ 'use strict';
   describe('validate', () => {
-    it('Should return true if no actions defined', () => {
+    it('Should return false by default', () => {
       let exp = new Expectation();
-      expect(exp.validate()).to.be.true;
+      expect(exp.validate()).to.be.false;
     });
 
-    it('Shoud return false if at least one action is not valid', () => {
+    it('Should return false if forced cardinallity is not fullfilled', () => {
       let exp = new Expectation();
+      exp.times(3);
+      expect(exp.validate()).to.be.false;
+      exp.execute();
+      exp.execute();
+      expect(exp.validate()).to.be.false;
+      exp.execute();
       expect(exp.validate()).to.be.true;
+    });
 
-      exp.actions.push({validate: () => true});
-      exp.actions.push({validate: () => true});
-      exp.actions.push({validate: () => true});
+    it('Should return false if automatic cardinality is not fullfilled', () => {
+      let exp = new Expectation();
+      exp.willOnce(1).willTwice(2);
+      expect(exp.validate()).to.be.false;
+      expect(exp.execute()).to.be.equal(1);
+      expect(exp.execute()).to.be.equal(2);
+      expect(exp.validate()).to.be.false;
+      expect(exp.execute()).to.be.equal(2);
       expect(exp.validate()).to.be.true;
-      exp.actions.push({validate: () => true});
-      exp.actions.push({validate: () => false});
-      exp.actions.push({validate: () => true});
-      expect(exp.validate()).to.be.false;
     });
@@ -91,7 +99,8 @@ });
   describe('execute', () => {
-    it('Should return true directly if no actions provided', () => {
+    it('Should return no value if no actions provided', () => {
       let exp = new Expectation();
-      expect(exp.execute([1,2,3])).to.be.true;
-      expect(exp.execute([])).to.be.true;
-      expect(exp.execute()).to.be.true;
+      exp.atLeast(1);
+      expect(exp.execute([1,2,3])).to.be.undefined;
+      expect(exp.execute([])).to.be.undefined;
+      expect(exp.execute()).to.be.undefined;
     });
@@ -101,2 +110,3 @@
       let exp = new Expectation();
+      exp.atLeast(1);
       exp.actions.push({
@@ -132,2 +142,3 @@ ready: () => false,
       let exp = new Expectation();
+      exp.atLeast(1);
       exp.actions.push({
@@ -175,3 +186,3 @@ ready: () => true,
 
-  describe('will', () => {
+  describe.skip('will', () => {
     it('Should add new action to the list', () => {
@@ -236,2 +247,26 @@ let exp = new Expectation();
 
+  describe('willTwice', () => {
+    it('Should create action with counter set to 2', () => {
+      let exp = new Expectation();
+      exp.willTwice(() => true);
+      expect(exp.actions).to.have.length(1);
+      expect(exp.actions[0].counter).to.be.equal(2);
+    });
+
+    it('Should return instance of current expectation', () => {
+      let exp1 = new Expectation();
+      let exp2 = new Expectation();
+      expect(exp1.willTwice(() => true)).to.be.equal(exp1);
+      expect(exp2.willTwice(() => false)).to.be.equal(exp2);
+    })
+    
+    it('Should create action with provided function', () => {
+      let exp = new Expectation();
+      exp.willTwice(() => 4531);
+      exp.willTwice(() => 'Hello World');
+      expect(exp.actions[0].execute()).to.be.equal(4531);
+      expect(exp.actions[1].execute()).to.be.equal('Hello World'); 
+    });
+  });
+
   describe('willRepeatedly', () => {
@@ -238,0 +273,0 @@ it('Should create action with counter set to negative value', () => {

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Found 1 instance in 1 package

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Improved metrics

Total package byte prevSize

39802

increased by25.71%

Number of package files

18

increased by20%

Lines of code

1057

increased by30.66%

Worsened metrics

Number of lines in readme file

81

decreased by-1.22%

No dependency changes