text: import { expect } from "chai";
  
  import Registry from "./Registry";
  
  describe("Resource", () => {
    let registry;
    let author;
  
    beforeEach(() => {
      registry = new Registry();
      author = registry.define("author", {});
    });
  
    describe("id formatting", () => {
      it("properly formats resource ID", () => {
        expect(author.id(12)).to.deep.equal({
          type: "author",
          id: "12"
        });
      });
  
      it("does not include undefined IDs", () => {
        expect(author.resource({})).to.deep.equal({
          type: "author",
          attributes: {}
        });
      });
  
      it("allows to override ID formatting & parsing behaviour", () => {
        registry.define("country", {
          id: {
            attr: "code",
            format(value) {
              return value;
            },
            parse(resourceObj) {
              return resourceObj.id;
            }
          },
          attributes: ["name"]
        });
  
        expect(
          registry.format("country", { code: "PL", name: "Poland" })
        ).to.deep.equal({
          data: {
            type: "country",
            id: "PL",
            attributes: {
              name: "Poland"
            }
          }
        });
  
        expect(
          registry.parse({
            data: {
              type: "country",
              id: "UA",
              attributes: {
                name: "Ukraine"
              }
            }
          })
        ).to.deep.equal({
          code: "UA",
          name: "Ukraine"
        });
      });
    });
  
    describe("attribute formatting", () => {
      it("uses formatters", () => {
        const custom = registry.define("custom", {
          attributes: {
            age: { formatter: Number },
            skipIfNegative: { formatter: x => (x < 0 ? undefined : x) }
          }
        });
  
        expect(
          custom.resource({
            id: 89,
            age: "282",
            skipIfNegative: 10
          })
        ).to.deep.equal({
          type: "custom",
          id: "89",
          attributes: {
            age: 282,
            skipIfNegative: 10
          }
        });
  
        expect(
          custom.resource({
            id: 89,
            age: "282",
            skipIfNegative: -10
          })
        ).to.deep.equal({
          type: "custom",
          id: "89",
          attributes: {
            age: 282
          }
        });
      });
  
      it("uses getters", () => {
        const custom = registry.define("custom", {
          attributes: {
            phoneNumber: {
              getter: data => data.mobilePhone
            }
          }
        });
  
        expect(
          custom.resource({
            id: 12,
            phoneNumber: "736 272 273",
            mobilePhone: "894 999 333"
          })
        ).to.deep.equal({
          type: "custom",
          id: "12",
          attributes: {
            phoneNumber: "894 999 333"
          }
        });
      });
    });
  
    describe("resource formatting", () => {
      let article;
      let createArticle;
      let comment;
  
      beforeEach(() => {
        registry.define("author", {
          attributes: ["name", "email"],
          relationships: {
            articles: "article"
          }
        });
  
        article = registry.define("article", {
          attributes: ["title", "content"],
          relationships: {
            author: "author",
            comments: "comment"
          }
        });
  
        createArticle = registry.define("create-article", {
          attributes: ["title", "content"]
        });
  
        comment = registry.define("comment", {
          attributes: ["content"],
          relationships: {
            article: "article"
          }
        });
      });
  
      it("properly formats resources", () => {
        expect(
          createArticle.resource({
            title: "New article",
            content: "Article content ..."
          })
        ).to.deep.equal({
          type: "create-article",
          attributes: {
            title: "New article",
            content: "Article content ..."
          }
        });
      });
  
      it("properly formats null relationship", () => {
        expect(
          comment.resource({
            id: 99,
            content: "comment !",
            article: null,
            author: 1245
          })
        ).to.deep.equal({
          type: "comment",
          id: "99",
          attributes: {
            content: "comment !"
          },
          relationships: {
            article: { data: null }
          }
        });
      });
  
      it("properly formats non-null single relationship", () => {
        expect(
          comment.resource({
            id: 99,
            content: "task",
            article: 12
          })
        ).to.deep.equal({
          type: "comment",
          id: "99",
          attributes: {
            content: "task"
          },
          relationships: {
            article: {
              data: {
                type: "article",
                id: "12"
              }
            }
          }
        });
      });
  
      it("properly formats empty multiple relationships", () => {
        expect(
          article.document({
            id: 12,
            comments: []
          })
        ).to.deep.equal({
          data: {
            type: "article",
            id: "12",
            attributes: {},
            relationships: {
              author: { data: null },
              comments: { data: [] }
            }
          }
        });
      });
  
      it("properly formats multiple relationships", () => {
        expect(
          article.document({
            id: 12,
            comments: [1, 5, 9]
          })
        ).to.deep.equal({
          data: {
            type: "article",
            id: "12",
            attributes: {},
            relationships: {
              author: { data: null },
              comments: {
                data: [
                  { type: "comment", id: "1" },
                  { type: "comment", id: "5" },
                  { type: "comment", id: "9" }
                ]
              }
            }
          }
        });
      });
    });
  });
  
  describe("Resource.parse", () => {
    let registry;
  
    const testData = {
      data: {
        type: "parent-type",
        id: "1",
        relationships: {
          children: {
            data: [{ type: "child-type", id: "11" }]
          }
        }
      },
      included: [
        {
          type: "child-type",
          id: "11",
          relationships: {
            parent: {
              data: { type: "parent-type", id: "1" }
            }
          }
        }
      ]
    };
  
    beforeEach(() => {
      registry = new Registry();
      registry.define("parent-type", {
        attributes: [],
        relationships: {
          children: "child-type"
        }
      });
      registry.define("child-type", {
        attributes: [],
        relationships: {
          parent: "parent-type"
        }
      });
    });
  
    it("does not include resource type by default", () => {
      expect(registry.parse(testData)).to.deep.equal({
        id: "1",
        children: [{ id: "11", parent: "1" }]
      });
    });
  
    it("sets the resource type in the field specified", () => {
      expect(registry.parse(testData, { typeAttr: "type_" })).to.deep.equal({
        type_: "parent-type",
        id: "1",
        children: [{ type_: "child-type", id: "11", parent: "1" }]
      });
    });
  });
  
  describe("Resource.resource", () => {
    it("handles embedding resources", () => {
      // eslint-disable-next-line no-shadow
      const registry = new Registry({
        keyTransform: "kebab"
      });
  
      const author3 = registry.define("author", {
        attributes: ["name"],
        relationships: {
          articles: {
            type: "article",
            _embed: true
          }
        }
      });
  
      registry.define("article", {
        attributes: ["title"]
      });
  
      expect(
        author3.document({
          id: 1,
          name: "author",
          articles: [
            { id: 1, title: "first" },
            { id: 2, title: "second" }
          ]
        })
      ).to.deep.equal({
        data: {
          type: "author",
          id: "1",
          attributes: {
            name: "author"
          },
          relationships: {
            articles: {
              data: [
                { type: "article", id: "1", attributes: { title: "first" } },
                { type: "article", id: "2", attributes: { title: "second" } }
              ]
            }
          }
        }
      });
    });
  });
  
  describe("Resource.document", () => {
    it("handles transform=kebab option properly", () => {
      const registry = new Registry({
        keyTransform: "kebab"
      });
  
      registry.define("author", {
        attributes: ["firstName", "email"],
        relationships: {
          articles: "article"
        }
      });
  
      const article = registry.define("article", {
        attributes: ["title", "fullContent"],
        relationships: {
          author: "author",
          commentList: "comment"
        }
      });
  
      registry.define("comment", {
        attributes: ["textContent", "formattedContent"],
        relationships: {
          article: "article"
        }
      });
  
      expect(
        article.document({
          id: 12,
          title: "Article title",
          fullContent: "Lorem ipsum ... no i tak dalej",
          commentList: [1, 5, 9]
        })
      ).to.deep.equal({
        data: {
          type: "article",
          id: "12",
          attributes: {
            title: "Article title",
            "full-content": "Lorem ipsum ... no i tak dalej"
          },
          relationships: {
            author: { data: null },
            "comment-list": {
              data: [
                { type: "comment", id: "1" },
                { type: "comment", id: "5" },
                { type: "comment", id: "9" }
              ]
            }
          }
        }
      });
    });
  });
  