NODEDC_DESIGN_GUIDELINE/scripts/map-camera-presets.test.mjs

94 lines
4.6 KiB
JavaScript

import assert from "node:assert/strict";
import { readFile } from "node:fs/promises";
import test from "node:test";
import ts from "typescript";
const source = await readFile(new URL("../apps/catalog/src/mapCameraPresets.ts", import.meta.url), "utf8");
const { outputText } = ts.transpileModule(source, {
compilerOptions: {
module: ts.ModuleKind.ES2022,
target: ts.ScriptTarget.ES2022,
},
fileName: "mapCameraPresets.ts",
});
const presetsModule = await import(`data:text/javascript;base64,${Buffer.from(outputText).toString("base64")}`);
const {
CAMERA_SURVEY_PRESETS,
OSM_BUILDINGS_OBSERVED_BAND_COUNT,
OSM_BUILDINGS_GEOMETRIC_ERROR_LEVELS,
cameraSurveySpiralDistance,
cameraSurveyPitchForViewport,
cameraSurveySampleDistances,
cameraSurveyTravelSeconds,
cameraSurveyTurnOverlap,
} = presetsModule;
test("OSM Buildings measured hierarchy has 16 halving geometric-error bands", () => {
assert.equal(OSM_BUILDINGS_GEOMETRIC_ERROR_LEVELS.length, 16);
for (let index = 1; index < OSM_BUILDINGS_GEOMETRIC_ERROR_LEVELS.length; index += 1) {
assert.ok(Math.abs(OSM_BUILDINGS_GEOMETRIC_ERROR_LEVELS[index - 1] / 2 - OSM_BUILDINGS_GEOMETRIC_ERROR_LEVELS[index]) < 0.000_001);
}
});
test("camera survey exposes ten regional coverage profiles", () => {
assert.equal(CAMERA_SURVEY_PRESETS.length, 10);
assert.equal(OSM_BUILDINGS_OBSERVED_BAND_COUNT, 16);
assert.equal(CAMERA_SURVEY_PRESETS[0].heightAboveGroundMeters, 80);
assert.equal(CAMERA_SURVEY_PRESETS.at(-1).heightAboveGroundMeters, 40_960);
assert.equal(new Set(CAMERA_SURVEY_PRESETS.map((preset) => preset.id)).size, CAMERA_SURVEY_PRESETS.length);
});
test("height and pitch preserve overlap while speed ceilings remain monotonic", () => {
const expectedOverlap = cameraSurveyTurnOverlap(CAMERA_SURVEY_PRESETS[0]);
assert.ok(expectedOverlap > 0.3 && expectedOverlap < 0.32);
for (const [index, preset] of CAMERA_SURVEY_PRESETS.entries()) {
assert.equal(preset.pitchMetersPerTurn, preset.heightAboveGroundMeters * 0.8);
assert.equal(preset.targetRadiusMeters, 25_000);
assert.ok(Math.abs(cameraSurveyTurnOverlap(preset) - expectedOverlap) < 1e-12);
if (index === 0) continue;
assert.equal(preset.heightAboveGroundMeters, CAMERA_SURVEY_PRESETS[index - 1].heightAboveGroundMeters * 2);
assert.ok(preset.speedMetersPerSecond >= CAMERA_SURVEY_PRESETS[index - 1].speedMetersPerSecond);
assert.ok(cameraSurveyTravelSeconds(preset) < cameraSurveyTravelSeconds(CAMERA_SURVEY_PRESETS[index - 1]));
}
});
test("every profile is a finite city-scale pass with an honest no-wait ETA", () => {
const first = CAMERA_SURVEY_PRESETS[0];
const distance = cameraSurveySpiralDistance(first.targetRadiusMeters, first.pitchMetersPerTurn);
assert.ok(distance > 30_000_000 && distance < 31_000_000);
assert.ok(cameraSurveyTravelSeconds(first) > 32 * 3_600 && cameraSurveyTravelSeconds(first) < 34 * 3_600);
assert.ok(Number.isFinite(cameraSurveyTravelSeconds(CAMERA_SURVEY_PRESETS.at(-1))));
});
test("narrow viewports reduce turn pitch instead of opening coverage gaps", () => {
const preset = CAMERA_SURVEY_PRESETS[0];
const wideFov = Math.PI / 3;
const widePitch = cameraSurveyPitchForViewport(preset.heightAboveGroundMeters, preset.pitchMetersPerTurn, wideFov);
const wideWidth = 2 * preset.heightAboveGroundMeters * Math.tan(wideFov / 2);
const narrowFov = Math.PI / 6;
const narrowPitch = cameraSurveyPitchForViewport(preset.heightAboveGroundMeters, preset.pitchMetersPerTurn, narrowFov);
const narrowWidth = 2 * preset.heightAboveGroundMeters * Math.tan(narrowFov / 2);
assert.ok(widePitch <= preset.pitchMetersPerTurn);
assert.ok(Math.abs(1 - widePitch / wideWidth - 0.31) < 1e-12);
assert.ok(narrowPitch < preset.pitchMetersPerTurn);
assert.ok(Math.abs(1 - narrowPitch / narrowWidth - 0.31) < 1e-12);
});
test("terrain prefetch is clipped to the selected survey boundary", () => {
const distances = cameraSurveySampleDistances(0, 166.7, 1_000, 120);
assert.equal(distances[0], 0);
assert.equal(distances.at(-1), 1_000);
assert.ok(distances.length < 120);
assert.ok(distances.every((distance) => distance <= 1_000));
assert.deepEqual(cameraSurveySampleDistances(1_001, 10, 1_000, 120), []);
});
test("all operational preset values remain inside renderer safety limits", () => {
for (const preset of CAMERA_SURVEY_PRESETS) {
assert.ok(preset.heightAboveGroundMeters >= 10 && preset.heightAboveGroundMeters <= 100_000);
assert.ok(preset.speedMetersPerSecond >= 1 && preset.speedMetersPerSecond <= 5_000);
assert.ok(preset.pitchMetersPerTurn >= 20 && preset.pitchMetersPerTurn <= 100_000);
}
});