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Arbousier1Arbousier1
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Add SIGMA accuracy test suite and CI verification step
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‎.github/workflows/main.yml‎

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@@ -125,6 +125,7 @@ jobs:
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- name: Build with Gradle
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if: steps.check_changes.outputs.has_changes == 'true' || github.event.inputs.force_build == 'true'
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run: |
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gradle :core:testMath --no-daemon
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gradle clean shadowJar --no-daemon
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JAR_FILE=$(find plugin/build/libs -name "UltimateShop-*.jar" ! -name "*sources.jar" ! -name "*javadoc.jar" | head -1)
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if [ -n "$JAR_FILE" ]; then

‎core/build.gradle.kts‎

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@@ -60,3 +60,10 @@ dependencies {
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compileOnly("de.oliver:FancyHolograms:2.9.1")
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implementation("cn.gtemc:itembridge:1.0.25")
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}
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tasks.register<JavaExec>("testMath") {
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group = "verification"
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description = "Run EvalEx + SIGMA accuracy tests"
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mainClass.set("cn.superiormc.ultimateshop.utils.MathFunctionTest")
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classpath = sourceSets["main"].runtimeClasspath
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}

‎core/src/main/java/cn/superiormc/ultimateshop/utils/MathFunctionTest.java‎

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package cn.superiormc.ultimateshop.utils;
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import com.ezylang.evalex.EvaluationException;
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import com.ezylang.evalex.Expression;
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import com.ezylang.evalex.config.ExpressionConfiguration;
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import com.ezylang.evalex.data.EvaluationValue;
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import com.ezylang.evalex.functions.AbstractFunction;
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import com.ezylang.evalex.functions.FunctionParameter;
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import com.ezylang.evalex.parser.Token;
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import java.math.BigDecimal;
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import java.math.RoundingMode;
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/**
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* 独立测试 EvalEx + SIGMA 自定义函数 —— 不依赖 ConfigManager
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* 运行: java -cp "build/classes;deps/*" cn.superiormc.ultimateshop.utils.MathFunctionTest
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*/
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public class MathFunctionTest {
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private static final int SIGMA_MAX_ITERATIONS = 100000;
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private static final ExpressionConfiguration config;
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private static int passed;
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private static int failed;
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static {
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config = ExpressionConfiguration.builder()
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.function("SIGMA", new SigmaFunction())
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.build();
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}
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@FunctionParameter(name = "start")
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@FunctionParameter(name = "end")
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@FunctionParameter(name = "body")
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public static class SigmaFunction extends AbstractFunction {
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@Override
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public EvaluationValue evaluate(EvaluationValue... args) {
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int start = args[0].getNumberValue().intValue();
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int end = args[1].getNumberValue().intValue();
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String body = args[2].getStringValue();
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if (start > end) return EvaluationValue.numberValue(BigDecimal.ZERO);
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int count = end - start + 1;
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if (count > SIGMA_MAX_ITERATIONS) {
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throw new EvaluationException(new Token(0, body),
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"SIGMA: too many iterations (" + count + ")");
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}
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BigDecimal sum = BigDecimal.ZERO;
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for (int i = start; i <= end; i++) {
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Expression sub = new Expression(body, config).with("i", BigDecimal.valueOf(i));
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sum = sum.add(sub.evaluate().getNumberValue());
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}
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return EvaluationValue.numberValue(sum);
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}
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}
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static BigDecimal calc(String expr) {
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return new Expression(expr, config).evaluate().getNumberValue()
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.setScale(10, RoundingMode.HALF_UP).stripTrailingZeros();
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}
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static void check(String name, String expr, BigDecimal expected) {
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try {
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BigDecimal result = calc(expr);
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if (result.compareTo(expected) == 0) {
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passed++;
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System.out.println(" PASS: " + name + " = " + result);
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} else {
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failed++;
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System.out.println(" FAIL: " + name);
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System.out.println(" expected: " + expected);
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System.out.println(" got : " + result);
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}
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} catch (Exception e) {
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failed++;
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System.out.println(" FAIL: " + name + " (threw " + e.getClass().getSimpleName() + ": " + e.getMessage() + ")");
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}
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}
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static BigDecimal d(String s) { return new BigDecimal(s); }
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public static void main(String[] args) {
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System.out.println("= EvalEx + SIGMA 自定义函数 准确性测试 =\n");
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System.out.println("--- 基础四则运算 ---");
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check("1+1", "1+1", d("2"));
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check("3*4", "3*4", d("12"));
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check("10/3", "10/3", d("3.3333333333"));
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check("2^10", "2^10", d("1024"));
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check("(1+2)*3", "(1+2)*3", d("9"));
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check("10%3", "10%3", d("1"));
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check("-5+8", "-5+8", d("3"));
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check("2.5*4", "2.5*4", d("10"));
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check("隐式乘法 2(3+4)", "2(3+4)", d("14"));
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System.out.println("\n--- 内置数学函数 ---");
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check("SQRT(16)", "SQRT(16)", d("4"));
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check("SQRT(2)", "SQRT(2)", d("1.4142135624"));
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check("ABS(-5)", "ABS(-5)", d("5"));
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check("ROUND(3.14159, 2)", "ROUND(3.14159, 2)", d("3.14"));
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check("FLOOR(3.9)", "FLOOR(3.9)", d("3"));
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check("CEILING(3.1)", "CEILING(3.1)", d("4"));
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check("LOG(2.718281828)", "LOG(2.718281828)", d("0.9999999993"));
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check("LOG10(100)", "LOG10(100)", d("2"));
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check("SIN(0)", "SIN(0)", d("0"));
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check("COS(0)", "COS(0)", d("1"));
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check("TAN(0)", "TAN(0)", d("0"));
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check("EXP(1)", "EXP(1)", d("2.7182818285"));
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check("FACT(5)", "FACT(5)", d("120"));
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check("MIN(3, 1, 4, 2)", "MIN(3, 1, 4, 2)", d("1"));
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check("MAX(3, 1, 4, 2)", "MAX(3, 1, 4, 2)", d("4"));
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System.out.println("\n--- 布尔表达式 ---");
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check("1>0", "IF(1>0, 100, 0)", d("100"));
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check("1==1", "IF(1==1, 200, 0)", d("200"));
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check("1!=2", "IF(1!=2, 300, 0)", d("300"));
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check("AND", "IF(1<2 AND 2<3, 400, 0)", d("400"));
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check("OR", "IF(1>2 OR 2<3, 500, 0)", d("500"));
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check("NOT", "IF(NOT(1>2), 600, 0)", d("600"));
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System.out.println("\n--- SIGMA 求和 ---");
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check("SIGMA(1, 10, \"i\") Σi", "SIGMA(1, 10, \"i\")", d("55"));
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check("SIGMA(1, 10, \"i*i\") Σi²", "SIGMA(1, 10, \"i*i\")", d("385"));
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check("SIGMA(1, 5, \"i^3\") Σi³", "SIGMA(1, 5, \"i^3\")", d("225"));
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check("SIGMA(1, 100, \"1\") counting","SIGMA(1, 100, \"1\")", d("100"));
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check("SIGMA(1, 4, \"FACT(i)\") Σi!", "SIGMA(1, 4, \"FACT(i)\")", d("33"));
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check("SIGMA(1, 1, \"42\") 单次", "SIGMA(1, 1, \"42\")", d("42"));
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check("SIGMA(0, 0, \"99\") 零索引", "SIGMA(0, 0, \"99\")", d("99"));
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check("SIGMA(5, 1, \"i\") start>end","SIGMA(5, 1, \"i\")", d("0"));
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System.out.println("\n--- SIGMA 边界/嵌套 ---");
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check("SIGMA with EXP", "SIGMA(1, 5, \"EXP(-0.1*i)\")",
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d("4.4959131450"));
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check("SIGMA with SQRT", "SIGMA(1, 9, \"SQRT(i)\")",
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d("19.3060005260"));
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check("嵌套 IF", "SIGMA(1, 10, \"IF(i%2==0, i, 0)\")",
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d("30"));
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check("大范围 sigma", "SIGMA(1, 1000, \"1\")",
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d("1000"));
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System.out.println("\n--- 文章中的实用公式 ---");
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check("e^{-lambda*n} λ=0.1 n=10", "EXP(-0.1*10)", d("0.3678794412"));
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check("round{x, 2}", "ROUND(3.14159, 2)", d("3.14"));
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check("floor{x}", "FLOOR(3.9)", d("3"));
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check("1-e^{-λn} λ=0.1 n=5", "1-EXP(-0.1*5)", d("0.3934693403"));
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check("(t-μ)^6/(2σ²) t=10 μ=5 σ=2","(10-5)^6/(2*2^2)", d("1953.125"));
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check("exp[-(t-μ)^6/(2σ²)]", "EXP(-(10-5)^6/(2*2^2))", d("0.0000000000"));
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System.out.println("\n" + "=".repeat(40));
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System.out.println("总计: " + (passed + failed) + " 项, 通过 " + passed + ", 失败 " + failed);
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if (failed > 0) {
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System.out.println(" 存在失败用例!");
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System.exit(1);
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} else {
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System.out.println(" 全部通过!");
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}
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}
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}

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