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| 1 | +// © 2025 Cristian Felipe Patiño Rojas. Created on 28/5/25. |
| 2 | + |
| 3 | +import XCTest |
| 4 | +import Core |
| 5 | + |
| 6 | +class DataGatheringTests: XCTestCase { |
| 7 | + final class IterationRecorder { |
| 8 | + private var date: Date? |
| 9 | + private var code: String? |
| 10 | + var iterations: [DataGatheringTests.Iteration] = [] |
| 11 | + |
| 12 | + func recordGeneratedCode(_ code: String, at date: Date) { |
| 13 | + self.code = code |
| 14 | + self.date = date |
| 15 | + } |
| 16 | + |
| 17 | + func recordOutput(_ output: Runner.ProcessOutput) { |
| 18 | + guard let date = date, let code = code else { |
| 19 | + print("⚠️ Skipped iteration: incomplete data") |
| 20 | + return |
| 21 | + } |
| 22 | + iterations.append( |
| 23 | + .init( |
| 24 | + startDate: date, |
| 25 | + generatedCode: code, |
| 26 | + exitCode: output.exitCode, |
| 27 | + stdErr: output.stderr, |
| 28 | + stdOut: output.stdout |
| 29 | + ) |
| 30 | + ) |
| 31 | + self.code = nil |
| 32 | + self.date = nil |
| 33 | + } |
| 34 | + } |
| 35 | + |
| 36 | + struct GatheredData: Equatable { |
| 37 | + let testId: String |
| 38 | + let modelName: String |
| 39 | + let executions: [Execution] |
| 40 | + } |
| 41 | + |
| 42 | + struct Execution: Equatable { |
| 43 | + let startDate: Date |
| 44 | + let iterations: [Iteration] |
| 45 | + } |
| 46 | + |
| 47 | + struct Iteration: Equatable { |
| 48 | + let startDate: Date |
| 49 | + let generatedCode: String |
| 50 | + let exitCode: Int |
| 51 | + let stdErr: String? |
| 52 | + let stdOut: String? |
| 53 | + } |
| 54 | + |
| 55 | + struct Specs { |
| 56 | + let id: String |
| 57 | + let content: String |
| 58 | + } |
| 59 | + |
| 60 | + class DataGatherer { |
| 61 | + let client: Client |
| 62 | + let runner: Runner |
| 63 | + let currentDate: () -> Date |
| 64 | + |
| 65 | + init(client: Client, runner: Runner, currentDate: @escaping () -> Date = Date.init) { |
| 66 | + self.client = client |
| 67 | + self.runner = runner |
| 68 | + self.currentDate = currentDate |
| 69 | + } |
| 70 | + |
| 71 | + func gatherData(systemPrompt: String, specs: Specs, executionCount: Int, iterationCount: Int) async throws -> GatheredData { |
| 72 | + |
| 73 | + class ClientSpy: Client { |
| 74 | + let client: Client |
| 75 | + |
| 76 | + init(client: Client, onResponse: @escaping (String) -> Void) { |
| 77 | + self.client = client |
| 78 | + self.onResponse = onResponse |
| 79 | + } |
| 80 | + var model: String {client.model} |
| 81 | + let onResponse: (String) -> Void |
| 82 | + func send(messages: [Message]) async throws -> String { |
| 83 | + let response = try await client.send(messages: messages) |
| 84 | + onResponse(response) |
| 85 | + return response |
| 86 | + } |
| 87 | + } |
| 88 | + |
| 89 | + class RunnerSpy: Runner { |
| 90 | + let runner: Runner |
| 91 | + |
| 92 | + init(runner: Runner, onProcessOutput: @escaping (ProcessOutput) -> Void) { |
| 93 | + self.runner = runner |
| 94 | + self.onProcessOutput = onProcessOutput |
| 95 | + } |
| 96 | + let onProcessOutput: (ProcessOutput) -> Void |
| 97 | + func run(_ code: String) throws -> ProcessOutput { |
| 98 | + let output = try runner.run(code) |
| 99 | + onProcessOutput(output) |
| 100 | + return output |
| 101 | + } |
| 102 | + } |
| 103 | + |
| 104 | + var executions = [Execution]() |
| 105 | + |
| 106 | + let currentDate = currentDate |
| 107 | + for _ in (1...executionCount) { |
| 108 | + let initialTimestamp = currentDate() |
| 109 | + let recorder = IterationRecorder() |
| 110 | + let clientSpy = ClientSpy(client: client) { [weak recorder] in |
| 111 | + recorder?.recordGeneratedCode($0, at: currentDate()) |
| 112 | + } |
| 113 | + let runnerSpy = RunnerSpy(runner: runner) { [weak recorder] in |
| 114 | + recorder?.recordOutput($0) |
| 115 | + } |
| 116 | + let coordinator = Coordinator(client: clientSpy, runner: runnerSpy) |
| 117 | + let _ = try await coordinator.generateCode( |
| 118 | + systemPrompt: systemPrompt, |
| 119 | + specs: specs.content, |
| 120 | + maxIterationCount: iterationCount |
| 121 | + ) |
| 122 | + executions.append( |
| 123 | + Execution( |
| 124 | + startDate: initialTimestamp, |
| 125 | + iterations: recorder.iterations |
| 126 | + ) |
| 127 | + ) |
| 128 | + } |
| 129 | + |
| 130 | + return GatheredData(testId: specs.id, modelName: client.model, executions: executions) |
| 131 | + } |
| 132 | + } |
| 133 | + |
| 134 | + func test() async throws { |
| 135 | + struct ClientStub: Client { |
| 136 | + let model: String |
| 137 | + let result: String |
| 138 | + func send(messages: [Message]) async throws -> String { |
| 139 | + result |
| 140 | + } |
| 141 | + } |
| 142 | + |
| 143 | + struct RunnerStub: Runner { |
| 144 | + let result: ProcessOutput |
| 145 | + func run(_ code: String) throws -> ProcessOutput { |
| 146 | + return result |
| 147 | + } |
| 148 | + } |
| 149 | + |
| 150 | + let executionCount = 5 |
| 151 | + let iterationCount = 5 |
| 152 | + let timestamp = Date() |
| 153 | + let client = ClientStub(model: "fake model", result: "any generated code") |
| 154 | + let runner = RunnerStub(result: (stdout: "", stderr: "any stderr", exitCode: 1)) |
| 155 | + let sut = DataGatherer(client: client, runner: runner, currentDate: { timestamp }) |
| 156 | + let specs = Specs( |
| 157 | + id: "adder_spec", |
| 158 | + content: """ |
| 159 | + func test_adder() { |
| 160 | + let sut = Adder(1,3) |
| 161 | + assert(sut.result == 4) |
| 162 | + } |
| 163 | + test_adder() |
| 164 | + """ |
| 165 | + ) |
| 166 | + |
| 167 | + let data = try await sut.gatherData( |
| 168 | + systemPrompt: "any system prompt", |
| 169 | + specs: specs, |
| 170 | + executionCount: executionCount, |
| 171 | + iterationCount: iterationCount |
| 172 | + ) |
| 173 | + |
| 174 | + let iteration = Iteration( |
| 175 | + startDate: timestamp, |
| 176 | + generatedCode: "any generated code", |
| 177 | + exitCode: 1, |
| 178 | + stdErr: "any stderr", |
| 179 | + stdOut: "" |
| 180 | + ) |
| 181 | + |
| 182 | + let iterations = Array(repeating: iteration, count: iterationCount) |
| 183 | + let execution = Execution(startDate: timestamp, iterations: iterations) |
| 184 | + let executions = Array(repeating: execution, count: executionCount) |
| 185 | + |
| 186 | + let expectedData = GatheredData( |
| 187 | + testId: "adder_spec", |
| 188 | + modelName: "fake model", |
| 189 | + executions: executions |
| 190 | + ) |
| 191 | + |
| 192 | + XCTAssertEqual(data, expectedData) |
| 193 | + } |
| 194 | +} |
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