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| 1 | +import { Contract, EventLog } from "ethers/contract" |
| 2 | +import getEvents from "../src/getEvents" |
| 3 | + |
| 4 | +jest.mock("ethers/contract", () => ({ |
| 5 | + __esModule: true, |
| 6 | + Contract: jest.fn(), |
| 7 | + EventLog: jest.fn() |
| 8 | +})) |
| 9 | + |
| 10 | +describe("getEvents", () => { |
| 11 | + let mockContract: jest.Mocked<Contract> |
| 12 | + |
| 13 | + beforeEach(() => { |
| 14 | + mockContract = { |
| 15 | + filters: { |
| 16 | + TestEvent: jest.fn() |
| 17 | + }, |
| 18 | + queryFilter: jest.fn() |
| 19 | + } as any |
| 20 | + }) |
| 21 | + |
| 22 | + describe("# getEvents", () => { |
| 23 | + it("should fetch events with basic parameters", async () => { |
| 24 | + const mockEvents = [ |
| 25 | + { |
| 26 | + args: ["arg1", "arg2"], |
| 27 | + blockNumber: 123 |
| 28 | + }, |
| 29 | + { |
| 30 | + args: ["arg3", "arg4"], |
| 31 | + blockNumber: 124 |
| 32 | + } |
| 33 | + ] as EventLog[] |
| 34 | + |
| 35 | + mockContract.queryFilter.mockResolvedValueOnce(mockEvents) |
| 36 | + |
| 37 | + const result = await getEvents(mockContract, "TestEvent") |
| 38 | + |
| 39 | + expect(mockContract.filters.TestEvent).toHaveBeenCalled() |
| 40 | + expect(mockContract.queryFilter).toHaveBeenCalled() |
| 41 | + expect(result).toEqual([ |
| 42 | + ["arg1", "arg2", 123], |
| 43 | + ["arg3", "arg4", 124] |
| 44 | + ]) |
| 45 | + }) |
| 46 | + |
| 47 | + it("should handle filter arguments", async () => { |
| 48 | + const filterArgs = ["arg1", "arg2"] |
| 49 | + const mockEvents = [ |
| 50 | + { |
| 51 | + args: ["arg1", "arg2"], |
| 52 | + blockNumber: 123 |
| 53 | + } |
| 54 | + ] as EventLog[] |
| 55 | + |
| 56 | + mockContract.queryFilter.mockResolvedValueOnce(mockEvents) |
| 57 | + |
| 58 | + await getEvents(mockContract, "TestEvent", filterArgs) |
| 59 | + |
| 60 | + expect(mockContract.filters.TestEvent).toHaveBeenCalledWith(...filterArgs) |
| 61 | + }) |
| 62 | + |
| 63 | + it("should use startBlock parameter", async () => { |
| 64 | + const startBlock = 1000 |
| 65 | + const mockEvents = [ |
| 66 | + { |
| 67 | + args: ["arg1"], |
| 68 | + blockNumber: 1001 |
| 69 | + } |
| 70 | + ] as EventLog[] |
| 71 | + |
| 72 | + mockContract.queryFilter.mockResolvedValueOnce(mockEvents) |
| 73 | + |
| 74 | + await getEvents(mockContract, "TestEvent", [], startBlock) |
| 75 | + |
| 76 | + expect(mockContract.queryFilter).toHaveBeenCalledWith(undefined, startBlock) |
| 77 | + }) |
| 78 | + |
| 79 | + it("should handle empty events array", async () => { |
| 80 | + mockContract.queryFilter.mockResolvedValueOnce([]) |
| 81 | + |
| 82 | + const result = await getEvents(mockContract, "TestEvent") |
| 83 | + |
| 84 | + expect(result).toEqual([]) |
| 85 | + }) |
| 86 | + |
| 87 | + it("should handle undefined filterArgs gracefully", async () => { |
| 88 | + const mockEvents = [ |
| 89 | + { |
| 90 | + args: ["arg1"], |
| 91 | + blockNumber: 101 |
| 92 | + } |
| 93 | + ] as EventLog[] |
| 94 | + |
| 95 | + mockContract.queryFilter.mockResolvedValueOnce(mockEvents) |
| 96 | + |
| 97 | + await getEvents(mockContract, "TestEvent", undefined) |
| 98 | + |
| 99 | + expect(mockContract.filters.TestEvent).toHaveBeenCalledWith() |
| 100 | + }) |
| 101 | + |
| 102 | + it("should handle contract errors", async () => { |
| 103 | + mockContract.queryFilter.mockRejectedValue(new Error("Contract error")) |
| 104 | + |
| 105 | + await expect(getEvents(mockContract, "TestEvent")).rejects.toThrow("Contract error") |
| 106 | + }) |
| 107 | + }) |
| 108 | +}) |
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