server.ts

import assert from "assert";
import setupServer from "../src/server";
import { setupMockConnection } from "./helpers/setupMockConnection";
import { setupMockLogger } from "./helpers/setupMockLogger";
import { setupMockTelemetry } from "./helpers/setupMockTelemetry";
import { setupMockWorkspaceFileRetriever } from "./helpers/setupMockWorkspaceFileRetriever";

describe("Solidity Language Server", () => {
  describe("initialization", () => {
    describe("capability registration", () => {
      let mockConnection: ReturnType<typeof setupMockConnection>;
      // eslint-disable-next-line @typescript-eslint/no-explicit-any
      let capabilities: any;

      before(async () => {
        mockConnection = setupMockConnection();
        const mockLogger = setupMockLogger();
        const mockWorkspaceFileRetriever = setupMockWorkspaceFileRetriever();
        const mockTelemetry = setupMockTelemetry();

        await setupServer(
          // eslint-disable-next-line @typescript-eslint/no-explicit-any
          mockConnection as any,
          mockWorkspaceFileRetriever,
          mockTelemetry,
          mockLogger
        );

        assert(mockConnection.onInitialize.called);
        const initialize = mockConnection.onInitialize.getCall(0).firstArg;
        assert(initialize);

        const initializeResponse = await initialize({
          rootUri: null,
          capabilities: {},
        });
        assert(initializeResponse);
        capabilities = initializeResponse.capabilities;
        assert(capabilities);
      });

      describe("completions", () => {
        it("advertises capability", () =>
          assert.deepStrictEqual(capabilities.completionProvider, {
            triggerCharacters: [".", "/", '"', "'", "*"],
          }));

        it("registers onCompletion", () =>
          assert(mockConnection.onCompletion.calledOnce));
      });

      describe("signature help", () => {
        it("advertises capability", () =>
          assert.deepStrictEqual(capabilities.signatureHelpProvider, {
            triggerCharacters: ["(", ","],
          }));

        it("registers onSignatureHelp", () =>
          assert(mockConnection.onSignatureHelp.calledOnce));
      });

      describe("definition", () => {
        it("advertises capability", () =>
          assert(capabilities.definitionProvider));

        it("registers onDefinition", () =>
          assert(mockConnection.onDefinition.calledOnce));
      });

      describe("type definition", () => {
        it("advertises capability", () =>
          assert(capabilities.typeDefinitionProvider));

        it("registers onTypeDefinition", () =>
          assert(mockConnection.onTypeDefinition.calledOnce));
      });

      describe("references", () => {
        it("advertises capability", () =>
          assert(capabilities.referencesProvider));

        it("registers onImplementation", () =>
          assert(mockConnection.onReferences.calledOnce));
      });

      describe("implementation", () => {
        it("advertises capability", () =>
          assert(capabilities.implementationProvider));

        it("registers onImplementation", () =>
          assert(mockConnection.onImplementation.calledOnce));
      });

      describe("rename", () => {
        it("advertises capability", () => assert(capabilities.renameProvider));

        it("registers onRenameRequest", () =>
          assert(mockConnection.onRenameRequest.calledOnce));
      });

      describe("code actions", () => {
        it("advertises capability", () =>
          assert(capabilities.codeActionProvider));

        it("registers onCodeActionRequest", () =>
          assert(mockConnection.onCodeAction.calledOnce));
      });
    });
  });
});