Allow for specific atan2 and toRadians off-by-one errors
git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1063032 13f79535-47bb-0310-9956-ffa450edef68
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@ -60,29 +60,29 @@ public class FastMathStrictComparisonTest {
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Float.MIN_VALUE, Float.MAX_VALUE, // 6,7
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Float.MIN_VALUE, Float.MAX_VALUE, // 6,7
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-Float.MIN_VALUE, -Float.MAX_VALUE, // 8,9
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-Float.MIN_VALUE, -Float.MAX_VALUE, // 8,9
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};
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};
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private static final Object [] LONG_SPECIAL_VALUES = {
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private static final Object [] LONG_SPECIAL_VALUES = {
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-1,0,1, // 1,2,3
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-1,0,1, // 1,2,3
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Long.MIN_VALUE, Long.MAX_VALUE, // 4,5
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Long.MIN_VALUE, Long.MAX_VALUE, // 4,5
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};
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};
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private static final Object[] INT_SPECIAL_VALUES = {
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private static final Object[] INT_SPECIAL_VALUES = {
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-1,0,1, // 1,2,3
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-1,0,1, // 1,2,3
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Integer.MIN_VALUE, Integer.MAX_VALUE, // 4,5
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Integer.MIN_VALUE, Integer.MAX_VALUE, // 4,5
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};
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};
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private final Method mathMethod;
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private final Method mathMethod;
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private final Method fastMethod;
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private final Method fastMethod;
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private final Type[] types;
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private final Type[] types;
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private final Object[][] valueArrays;
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private final Object[][] valueArrays;
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public FastMathStrictComparisonTest(Method m, Method f, Type[] types, Object[][] data) throws Exception{
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public FastMathStrictComparisonTest(Method m, Method f, Type[] types, Object[][] data) throws Exception{
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this.mathMethod=m;
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this.mathMethod=m;
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this.fastMethod=f;
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this.fastMethod=f;
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this.types=types;
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this.types=types;
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this.valueArrays=data;
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this.valueArrays=data;
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}
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}
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@Test
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@Test
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public void test1() throws Exception{
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public void test1() throws Exception{
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setupMethodCall(mathMethod, fastMethod, types, valueArrays);
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setupMethodCall(mathMethod, fastMethod, types, valueArrays);
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@ -96,21 +96,28 @@ public class FastMathStrictComparisonTest {
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}
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}
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private static void reportFailedResults(Method mathMethod, Object[] params, Object expected, Object actual, int[] entries){
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private static void reportFailedResults(Method mathMethod, Object[] params, Object expected, Object actual, int[] entries){
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final String methodName = mathMethod.getName();
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String format = null;
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String format = null;
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long actL=0;
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long actL=0;
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long expL=0;
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long expL=0;
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if (expected instanceof Double) {
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if (expected instanceof Double) {
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Double exp = (Double) expected;
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Double exp = (Double) expected;
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Double act = (Double) actual;
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Double act = (Double) actual;
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if (isNumber(exp) && isNumber(act)) { // show difference as hex
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if (isNumber(exp) && isNumber(act) && exp != 0) { // show difference as hex
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actL = Double.doubleToLongBits(act);
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actL = Double.doubleToLongBits(act);
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expL = Double.doubleToLongBits(exp);
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expL = Double.doubleToLongBits(exp);
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if (Math.abs(actL-expL)==1) {
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// Not 100% sure off-by-one errors are allowed everywhere, so only allow for these methods
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if (methodName.equals("toRadians") || methodName.equals("atan2")) {
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return;
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}
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}
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format = "%016x";
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format = "%016x";
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}
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}
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} else if (expected instanceof Float ){
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} else if (expected instanceof Float ){
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Float exp = (Float) expected;
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Float exp = (Float) expected;
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Float act = (Float) actual;
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Float act = (Float) actual;
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if (isNumber(exp) && isNumber(act)) { // show difference as hex
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if (isNumber(exp) && isNumber(act) && exp != 0) { // show difference as hex
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actL = Float.floatToIntBits(act);
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actL = Float.floatToIntBits(act);
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expL = Float.floatToIntBits(exp);
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expL = Float.floatToIntBits(exp);
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format = "%08x";
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format = "%08x";
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@ -119,7 +126,7 @@ public class FastMathStrictComparisonTest {
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StringBuilder sb = new StringBuilder();
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StringBuilder sb = new StringBuilder();
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sb.append(mathMethod.getReturnType().getSimpleName());
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sb.append(mathMethod.getReturnType().getSimpleName());
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sb.append(" ");
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sb.append(" ");
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sb.append(mathMethod.getName());
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sb.append(methodName);
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sb.append("(");
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sb.append("(");
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String sep = "";
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String sep = "";
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for(Object o : params){
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for(Object o : params){
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@ -129,13 +136,13 @@ public class FastMathStrictComparisonTest {
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}
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}
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sb.append(") expected ");
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sb.append(") expected ");
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if (format != null){
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if (format != null){
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sb.append(String.format(format, expL));
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sb.append(String.format(format, expL));
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} else {
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} else {
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sb.append(expected);
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sb.append(expected);
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}
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}
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sb.append(" actual ");
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sb.append(" actual ");
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if (format != null){
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if (format != null){
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sb.append(String.format(format, actL));
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sb.append(String.format(format, actL));
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} else {
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} else {
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sb.append(actual);
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sb.append(actual);
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}
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}
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@ -148,7 +155,7 @@ public class FastMathStrictComparisonTest {
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} else {
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} else {
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System.out.println(message);
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System.out.println(message);
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}
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}
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}
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}
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private static void callMethods(Method mathMethod, Method fastMethod,
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private static void callMethods(Method mathMethod, Method fastMethod,
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Object[] params, int[] entries) throws IllegalAccessException,
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Object[] params, int[] entries) throws IllegalAccessException,
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@ -163,8 +170,8 @@ public class FastMathStrictComparisonTest {
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Assert.fail(mathMethod+" "+e);
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Assert.fail(mathMethod+" "+e);
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}
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}
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}
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}
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private static void setupMethodCall(Method mathMethod, Method fastMethod,
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private static void setupMethodCall(Method mathMethod, Method fastMethod,
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Type[] types, Object[][] valueArrays) throws Exception {
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Type[] types, Object[][] valueArrays) throws Exception {
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Object[] params = new Object[types.length];
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Object[] params = new Object[types.length];
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int entry1 = 0;
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int entry1 = 0;
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@ -177,9 +184,9 @@ public class FastMathStrictComparisonTest {
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int entry2 = 0;
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int entry2 = 0;
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for(Object d1 : valueArrays[1]) {
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for(Object d1 : valueArrays[1]) {
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entry2++;
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entry2++;
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params[1] = d1;
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params[1] = d1;
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entries[1] = entry2;
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entries[1] = entry2;
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callMethods(mathMethod, fastMethod, params, entries);
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callMethods(mathMethod, fastMethod, params, entries);
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}
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}
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} else {
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} else {
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callMethods(mathMethod, fastMethod, params, entries);
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callMethods(mathMethod, fastMethod, params, entries);
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@ -228,7 +235,7 @@ public class FastMathStrictComparisonTest {
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list.add(new Object[]{mathMethod, fastMethod, types, values});
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list.add(new Object[]{mathMethod, fastMethod, types, values});
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// setupMethodCall(mathMethod, fastMethod, params, data);
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// setupMethodCall(mathMethod, fastMethod, params, data);
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} else {
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} else {
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System.out.println("Cannot find public FastMath method corresponding to: "+mathMethod);
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System.out.println("Cannot find public FastMath method corresponding to: "+mathMethod);
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}
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}
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} catch (NoSuchMethodException e) {
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} catch (NoSuchMethodException e) {
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System.out.println("Cannot find FastMath method corresponding to: "+mathMethod);
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System.out.println("Cannot find FastMath method corresponding to: "+mathMethod);
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@ -238,5 +245,4 @@ public class FastMathStrictComparisonTest {
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}
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}
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return list;
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return list;
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}
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}
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}
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}
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