migrate/__tests__/watch.test.ts at 32943842ab0b5c79736f87ff07fcc762bc4b3821 · graphile/migrate · GitHub

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jest.mock("child_process");

import "./helpers"; // Has side-effects; must come first

import * as mockFs from "mock-fs";

import { _makeCurrentMigrationRunner, _watch } from "../src/commands/watch";
import { parseSettings } from "../src/settings";
import { makeMigrations } from "./helpers";
import {
  makeActionSpies,
  mockCurrentSqlContentOnce,
  resetDb,
  setup,
  TEST_DATABASE_URL,
} from "./helpers";

beforeEach(resetDb);

const { MIGRATION_MULTIFILE_FILES } = makeMigrations();

it("doesn't run current.sql if it's already up to date", async () => {
  const { settings, getActionCalls } = makeActionSpies();
  const parsedSettings = await parseSettings({
    connectionString: TEST_DATABASE_URL,
    ...settings,
  });
  await setup(parsedSettings);
  const migrationRunner = _makeCurrentMigrationRunner(
    parsedSettings,
    false,
    false,
    false,
  );

  expect(getActionCalls()).toEqual([]);
  mockCurrentSqlContentOnce(
    parsedSettings,
    `\
-- First migration
SELECT ':DATABASE_NAME';
`,
  );
  await migrationRunner();
  expect(getActionCalls()).toEqual(["beforeCurrent", "afterCurrent"]);

  // This one is identical
  mockCurrentSqlContentOnce(
    parsedSettings,
    `\
-- Second migration; identical except for this comment
SELECT ':DATABASE_NAME';
`,
  );
  await migrationRunner();
  expect(getActionCalls()).toEqual(["beforeCurrent", "afterCurrent"]);

  mockCurrentSqlContentOnce(
    parsedSettings,
    `\
-- Third migration; DIFFERENT!
SELECT ':DATABASE_NAME', 2 * 2;
`,
  );
  await migrationRunner();
  expect(getActionCalls()).toEqual([
    "beforeCurrent",
    "afterCurrent",
    "beforeCurrent",
    "afterCurrent",
  ]);
});

it("watches symlinked files", async () => {
  const { settings, getActionCalls } = makeActionSpies();
  const parsedSettings = await parseSettings({
    connectionString: TEST_DATABASE_URL,
    ...settings,
  });
  await setup(parsedSettings);
  const migrationRunner = _makeCurrentMigrationRunner(
    parsedSettings,
    false,
    false,
    false,
  );

  expect(getActionCalls()).toEqual([]);
  mockFs({
    ...MIGRATION_MULTIFILE_FILES,
    "migrations/links/two.sql": `\
-- First migration
SELECT ':DATABASE_NAME';
`,
  });
  await migrationRunner();
  expect(getActionCalls()).toEqual(["beforeCurrent", "afterCurrent"]);

  // This one is identical
  mockFs({
    ...MIGRATION_MULTIFILE_FILES,
    "migrations/links/two.sql": `\
-- Second migration; identical except for this comment
SELECT ':DATABASE_NAME';
`,
  });
  await migrationRunner();
  expect(getActionCalls()).toEqual(["beforeCurrent", "afterCurrent"]);

  mockFs({
    ...MIGRATION_MULTIFILE_FILES,
    "migrations/links/two.sql": `\
-- Third migration; DIFFERENT!
SELECT ':DATABASE_NAME', 2 * 2;
`,
  });
  await migrationRunner();
  expect(getActionCalls()).toEqual([
    "beforeCurrent",
    "afterCurrent",
    "beforeCurrent",
    "afterCurrent",
  ]);
});