jec-sandcat/test/com/onsoft/sandcat/builders/ParameterDescriptorBuilderTest.ts

JEC Sandcat - The default RESTful web services framework for GlassCat applications.

//  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
//
//   Copyright 2016-2018 Pascal ECHEMANN.
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.

import { TestSuite, Test, BeforeAll } from "jec-juta";
import { expect } from "chai";
import { ParameterDescriptorBuilder } from "../../../../../src/com/onsoft/sandcat/builders/ParameterDescriptorBuilder";
import { ParameterDescriptor } from "../../../../../src/com/onsoft/sandcat/reflect/ParameterDescriptor";
import { AnnotationType } from "../../../../../src/com/onsoft/sandcat/reflect/AnnotationType";
import { SingletonError } from "jec-commons";

@TestSuite({
  description: "Test the ParameterDescriptorBuilder class properties"
})
export class ParameterDescriptorBuilderTest {

  public methodName:string = null;

  @BeforeAll()
  public initTest():void {
    this.methodName = "myMethodName";
  }
  
  @Test({
    description: "should throw a singleton error when calling the constructor function"
  })
  public newInstanceTest():void {
    const buildInstance:Function = function():void {
      new ParameterDescriptorBuilder();
    };
    expect(buildInstance).to.throw(SingletonError);
  }
  
  @Test({
    description: "should return a GlobalGuidGenerator instance"
  })
  public getInstanceTest():void {
    const builder:ParameterDescriptorBuilder =
                                       ParameterDescriptorBuilder.getInstance();
    expect(builder).to.be.an.instanceOf(ParameterDescriptorBuilder);
  }
  
  @Test({
    description: "should return a singleton reference"
  })
  public singletonTest():void {
    const builder1:ParameterDescriptorBuilder =
                                       ParameterDescriptorBuilder.getInstance();
    const builder2:ParameterDescriptorBuilder =
                                       ParameterDescriptorBuilder.getInstance();
    expect(builder1).to.equal(builder2);
  }
  
  @Test({
    description: "should return an instance of the ParameterDescriptor class"
  })
  public buildTest():void {
    expect(
      ParameterDescriptorBuilder.getInstance().build(
        this.methodName, AnnotationType.GET, 2
      )
    ).to.be.an.instanceOf(ParameterDescriptor);
  }
  
  @Test({
    description: "should return a ParameterDescriptor instance with the correct 'methodName' property value"
  })
  public methodNameTest():void {
    const desc:ParameterDescriptor = 
      ParameterDescriptorBuilder.getInstance().build(
        this.methodName, AnnotationType.GET, 2
      );
    expect(desc.methodName).to.equal(this.methodName);
  }
  
  @Test({
    description: "should return a ParameterDescriptor instance with the correct 'annotationType' property value"
  })
  public annotationTypeTest():void {
    const desc:ParameterDescriptor = 
      ParameterDescriptorBuilder.getInstance().build(
        this.methodName, AnnotationType.GET, 2
      );
    expect(desc.annotationType).to.equal(AnnotationType.GET);
  }
  
  @Test({
    description: "should return a ParameterDescriptor instance with the correct 'index' property value"
  })
  public indexTest():void {
    const desc:ParameterDescriptor = 
      ParameterDescriptorBuilder.getInstance().build(
        this.methodName, AnnotationType.GET, 2
      );
    expect(desc.index).to.equal(2);
  }
}