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Add agent rehearsal harness, findings, and per-run evidence for split-loop-with-lambda

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Six scripted pi sub-agent runs (3 tool regimes × 2 models) rehearsed the
exercise; deterministic gate = solution test + approved file. Key results:
mandated CLI triples cost on the strong model (4:06 vs 0:39, PASS both);
weak model fails only under the mandate (A+Q), passes when free or optional.
Drift documented with code: scorer.updateSelection left inside the extracted
method (A+Q, C+Q). Harness in tools/rehearse; summary in
rehearsal-findings.md; per-run evidence in rehearsal-runs/; cheat sheet in
rehearse-with-agent.md corrected (lambda-typed parameters unsupported).
This commit is contained in:
Your Name
2026-09-27 17:36:19 +00:00
parent a27e32688a
commit b993f25c53
51 changed files with 2281 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
ideas/split-loop-with-lambda/exercise/rehearsal-runs/C/diff.patch
+103
View File
@@ -0,0 +1,103 @@
Only in /tmp/rehearsal/runs/C/workspace: AGENTS.md
diff -ru '--exclude=target' /tmp/rehearsal/pristine/src/main/java/codingdojo/LongRangeForecasts.java /tmp/rehearsal/runs/C/workspace/src/main/java/codingdojo/LongRangeForecasts.java
--- /tmp/rehearsal/pristine/src/main/java/codingdojo/LongRangeForecasts.java 2026-09-27 14:58:14.139167804 +0000
+++ /tmp/rehearsal/runs/C/workspace/src/main/java/codingdojo/LongRangeForecasts.java 2026-09-27 15:47:19.484882205 +0000
@@ -3,36 +3,26 @@
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.*;
+import java.util.function.LongFunction;
public class LongRangeForecasts {
private final Scorer scorer = new Scorer();
- public Map<IceCream, Integer> longRangeForecast(String quarter) {
+ public Map<IceCream, Integer> longRangeForecast() {
+ return longRangeForecast(daysForward -> {
+ scorer.updateSelection();
+ return scorer.lookupWeather(daysForward);
+ });
+ }
+
+ public Map<IceCream, Integer> longRangeForecast(LongFunction<Boolean> dayOffsetToWeather) {
var result = new HashMap<IceCream, Integer>();
- if (Objects.equals(quarter, "Q1") || Objects.equals(quarter, "Q4")) {
- for (IceCream flavour : IceCream.values()) {
- result.put(flavour, 5);
- }
- }
for (IceCream flavour : IceCream.values()) {
result.put(flavour, 0);
}
- List<Instant> interestingDates = List.of(
- Instant.parse("2023-05-01T14:00:00.000-07:00"),
- Instant.parse("2023-05-18T14:00:00.000-07:00"),
- Instant.parse("2023-06-05T14:00:00.000-07:00"),
- Instant.parse("2023-06-23T14:00:00.000-07:00")
- );
- List<Boolean> expectedWeather = new ArrayList<>();
- for (Instant interestingDate : interestingDates) {
- scorer.updateSelection();
- var forecastDate = Instant.parse("2023-04-26T14:00:00.000-07:00");
- long daysForward = ChronoUnit.DAYS.between(forecastDate, interestingDate);
- Boolean lookupWeather = scorer.lookupWeather(daysForward);
- expectedWeather.add(lookupWeather);
- }
+ var expectedWeather = collectExpectedWeather(dayOffsetToWeather);
for (IceCream flavour : result.keySet()) {
result.put(flavour, result.get(flavour) + 10);
@@ -46,4 +36,21 @@
}
return result;
}
+
+ private List<Boolean> collectExpectedWeather(LongFunction<Boolean> dayOffsetToWeather) {
+ List<Instant> interestingDates = List.of(
+ Instant.parse("2023-05-01T14:00:00.000-07:00"),
+ Instant.parse("2023-05-18T14:00:00.000-07:00"),
+ Instant.parse("2023-06-05T14:00:00.000-07:00"),
+ Instant.parse("2023-06-23T14:00:00.000-07:00")
+ );
+ List<Boolean> expectedWeather = new ArrayList<>();
+ for (Instant interestingDate : interestingDates) {
+ var forecastDate = Instant.parse("2023-04-26T14:00:00.000-07:00");
+ long daysForward = ChronoUnit.DAYS.between(forecastDate, interestingDate);
+ Boolean lookupWeather = dayOffsetToWeather.apply(daysForward);
+ expectedWeather.add(lookupWeather);
+ }
+ return expectedWeather;
+ }
}
diff -ru '--exclude=target' /tmp/rehearsal/pristine/src/test/java/codingdojo/DailyForecastsTest.salesForecast.received.txt /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/DailyForecastsTest.salesForecast.received.txt
--- /tmp/rehearsal/pristine/src/test/java/codingdojo/DailyForecastsTest.salesForecast.received.txt 2026-09-27 14:58:16.443126144 +0000
+++ /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/DailyForecastsTest.salesForecast.received.txt 2026-09-27 15:47:22.446807369 +0000
@@ -1,4 +1,4 @@
Forecast at: 2026-09-27
Steve score: 9
-Julie score: 9
+Julie score: 3
Francis score: 3
diff -ru '--exclude=target' /tmp/rehearsal/pristine/src/test/java/codingdojo/LongRangeForecastsTest.java /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/LongRangeForecastsTest.java
--- /tmp/rehearsal/pristine/src/test/java/codingdojo/LongRangeForecastsTest.java 2026-09-27 14:58:14.139167804 +0000
+++ /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/LongRangeForecastsTest.java 2026-09-27 15:47:19.484882205 +0000
@@ -13,8 +13,7 @@
@Test
void longRangeForecast() {
- var quarter = "Q3";
- var actual = new LongRangeForecasts().longRangeForecast(quarter);
+ var actual = new LongRangeForecasts().longRangeForecast();
StringBuilder printedResult = printIceCreamForecast(actual);
Approvals.verify(printedResult);
diff -ru '--exclude=target' /tmp/rehearsal/pristine/src/test/java/codingdojo/LongRangeForecastsTest.longRangeForecast.received.txt /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/LongRangeForecastsTest.longRangeForecast.received.txt
--- /tmp/rehearsal/pristine/src/test/java/codingdojo/LongRangeForecastsTest.longRangeForecast.received.txt 2026-09-27 14:58:16.402126886 +0000
+++ /tmp/rehearsal/runs/C/workspace/src/test/java/codingdojo/LongRangeForecastsTest.longRangeForecast.received.txt 2026-09-27 15:47:22.405808404 +0000
@@ -1 +1 @@
-{Strawberry:10, Chocolate:10, Vanilla:10, }
\ No newline at end of file
+{Strawberry:12, Chocolate:12, Vanilla:12, }
\ No newline at end of file