alepha/src/core/__tests__/Alepha-graph.spec.ts

Easy-to-use modern TypeScript framework for building many kind of applications.

import { $inject, Alepha } from "alepha";
import { describe, expect, it } from "vitest";

describe("Alepha#graph", () => {
  it("should generate dependency graph", async () => {
    class A {
      value = "a";
    }

    class B {
      a = $inject(A);
    }

    class C {
      a = $inject(A);
    }

    class M {
      b = $inject(B);
      c = $inject(C);
    }

    class A3X {
      value = "a3bis";
    }

    class A3 {
      deps = $inject(A3X);
      value = "a2";
    }

    class X {
      value = "x";
    }

    class X2 {
      value = "x2";
    }

    const a = Alepha.create();

    a.with({
      provide: A,
      use: A3,
    });

    a.with({
      provide: X,
      use: X2,
    });

    a.with(M);

    await a.start();

    expect(a.graph()).toEqual({
      B: { from: ["M"] },
      C: { from: ["M"] },
      M: { from: ["Alepha"] },
      A3X: { from: ["A3"] },
      A3: { from: ["B", "C", "Alepha"], as: ["A"] },
      X2: { from: ["Alepha"], as: ["X"] },
      AlsProvider: {
        from: ["StateManager", "Alepha"],
        module: "alepha.core",
      },
      EventManager: {
        from: ["StateManager", "Alepha"],
        module: "alepha.core",
      },
      StateManager: {
        from: ["Alepha"],
        module: "alepha.core",
      },
      Json: {
        from: ["JsonSchemaCodec"],
        module: "alepha.core",
      },
      JsonSchemaCodec: {
        from: ["StateManager", "CodecManager"],
        module: "alepha.core",
      },
      KeylessJsonSchemaCodec: {
        from: ["CodecManager"],
        module: "alepha.core",
      },
      CodecManager: {
        from: ["Alepha"],
        module: "alepha.core",
      },
      SchemaValidator: {
        from: ["StateManager", "CodecManager"],
        module: "alepha.core",
      },
    });
  });
});