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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 import java.lang.reflect.Method;
     18 
     19 public class Main {
     20 
     21   public static void main(String[] args) throws Exception {
     22     cmpLong();
     23     cmpFloat();
     24     cmpDouble();
     25   }
     26 
     27   private static void cmpLong() throws Exception {
     28     expectLt(3L, 5L);
     29     expectGt(5L, 3L);
     30     expectLt(Long.MIN_VALUE, Long.MAX_VALUE);
     31     expectGt(Long.MAX_VALUE, Long.MIN_VALUE);
     32 
     33     expectEquals(0, smaliCmpLong(0L, 0L));
     34     expectEquals(0, smaliCmpLong(1L, 1L));
     35     expectEquals(-1, smaliCmpLong(1L, 2L));
     36     expectEquals(1, smaliCmpLong(2L, 1L));
     37     expectEquals(-1, smaliCmpLong(Long.MIN_VALUE, Long.MAX_VALUE));
     38     expectEquals(1, smaliCmpLong(Long.MAX_VALUE, Long.MIN_VALUE));
     39     expectEquals(0, smaliCmpLong(Long.MIN_VALUE, Long.MIN_VALUE));
     40     expectEquals(0, smaliCmpLong(Long.MAX_VALUE, Long.MAX_VALUE));
     41   }
     42 
     43   private static void cmpFloat() throws Exception {
     44     expectLt(3.1F, 5.1F);
     45     expectGt(5.1F, 3.1F);
     46     expectLt(Float.MIN_VALUE, Float.MAX_VALUE);
     47     expectGt(Float.MAX_VALUE, Float.MIN_VALUE);
     48     expectFalse(3.1F, Float.NaN);
     49     expectFalse(Float.NaN, 3.1F);
     50 
     51     expectEquals(0, smaliCmpGtFloat(0F, 0F));
     52     expectEquals(0, smaliCmpGtFloat(1F, 1F));
     53     expectEquals(-1, smaliCmpGtFloat(1.1F, 2.1F));
     54     expectEquals(1, smaliCmpGtFloat(2.1F, 1.1F));
     55     expectEquals(-1, smaliCmpGtFloat(Float.MIN_VALUE, Float.MAX_VALUE));
     56     expectEquals(1, smaliCmpGtFloat(Float.MAX_VALUE, Float.MIN_VALUE));
     57     expectEquals(0, smaliCmpGtFloat(Float.MIN_VALUE, Float.MIN_VALUE));
     58     expectEquals(0, smaliCmpGtFloat(Float.MAX_VALUE, Float.MAX_VALUE));
     59     expectEquals(1, smaliCmpGtFloat(5F, Float.NaN));
     60     expectEquals(1, smaliCmpGtFloat(Float.NaN, 5F));
     61 
     62     expectEquals(0, smaliCmpLtFloat(0F, 0F));
     63     expectEquals(0, smaliCmpLtFloat(1F, 1F));
     64     expectEquals(-1, smaliCmpLtFloat(1.1F, 2.1F));
     65     expectEquals(1, smaliCmpLtFloat(2.1F, 1.1F));
     66     expectEquals(-1, smaliCmpLtFloat(Float.MIN_VALUE, Float.MAX_VALUE));
     67     expectEquals(1, smaliCmpLtFloat(Float.MAX_VALUE, Float.MIN_VALUE));
     68     expectEquals(0, smaliCmpLtFloat(Float.MIN_VALUE, Float.MIN_VALUE));
     69     expectEquals(0, smaliCmpLtFloat(Float.MAX_VALUE, Float.MAX_VALUE));
     70     expectEquals(-1, smaliCmpLtFloat(5F, Float.NaN));
     71     expectEquals(-1, smaliCmpLtFloat(Float.NaN, 5F));
     72   }
     73 
     74   private static void cmpDouble() throws Exception {
     75     expectLt(3.1D, 5.1D);
     76     expectGt(5.1D, 3.1D);
     77     expectLt(Double.MIN_VALUE, Double.MAX_VALUE);
     78     expectGt(Double.MAX_VALUE, Double.MIN_VALUE);
     79     expectFalse(3.1D, Double.NaN);
     80     expectFalse(Double.NaN, 3.1D);
     81 
     82     expectEquals(0, smaliCmpGtDouble(0D, 0D));
     83     expectEquals(0, smaliCmpGtDouble(1D, 1D));
     84     expectEquals(-1, smaliCmpGtDouble(1.1D, 2.1D));
     85     expectEquals(1, smaliCmpGtDouble(2.1D, 1.1D));
     86     expectEquals(-1, smaliCmpGtDouble(Double.MIN_VALUE, Double.MAX_VALUE));
     87     expectEquals(1, smaliCmpGtDouble(Double.MAX_VALUE, Double.MIN_VALUE));
     88     expectEquals(0, smaliCmpGtDouble(Double.MIN_VALUE, Double.MIN_VALUE));
     89     expectEquals(0, smaliCmpGtDouble(Double.MAX_VALUE, Double.MAX_VALUE));
     90     expectEquals(1, smaliCmpGtDouble(5D, Double.NaN));
     91     expectEquals(1, smaliCmpGtDouble(Double.NaN, 5D));
     92 
     93     expectEquals(0, smaliCmpLtDouble(0D, 0D));
     94     expectEquals(0, smaliCmpLtDouble(1D, 1D));
     95     expectEquals(-1, smaliCmpLtDouble(1.1D, 2.1D));
     96     expectEquals(1, smaliCmpLtDouble(2.1D, 1.1D));
     97     expectEquals(-1, smaliCmpLtDouble(Double.MIN_VALUE, Double.MAX_VALUE));
     98     expectEquals(1, smaliCmpLtDouble(Double.MAX_VALUE, Double.MIN_VALUE));
     99     expectEquals(0, smaliCmpLtDouble(Double.MIN_VALUE, Double.MIN_VALUE));
    100     expectEquals(0, smaliCmpLtDouble(Double.MAX_VALUE, Double.MAX_VALUE));
    101     expectEquals(-1, smaliCmpLtDouble(5D, Double.NaN));
    102     expectEquals(-1, smaliCmpLtDouble(Float.NaN, 5D));
    103   }
    104 
    105  static boolean $opt$lt(long a, long b) {
    106     return a < b;
    107   }
    108 
    109   static boolean $opt$lt(float a, float b) {
    110     return a < b;
    111   }
    112 
    113   static boolean $opt$lt(double a, double b) {
    114     return a < b;
    115   }
    116 
    117   static boolean $opt$gt(long a, long b) {
    118     return a > b;
    119   }
    120 
    121   static boolean $opt$gt(float a, float b) {
    122     return a > b;
    123   }
    124 
    125   static boolean $opt$gt(double a, double b) {
    126     return a > b;
    127   }
    128 
    129   // Wrappers around methods located in file cmp.smali.
    130 
    131   private static int smaliCmpLong(long a, long b) throws Exception {
    132     Class<?> c = Class.forName("TestCmp");
    133     Method m = c.getMethod("$opt$CmpLong", long.class, long.class);
    134     int result = (Integer)m.invoke(null, a, b);
    135     return result;
    136   }
    137 
    138   private static int smaliCmpGtFloat(float a, float b) throws Exception {
    139     Class<?> c = Class.forName("TestCmp");
    140     Method m = c.getMethod("$opt$CmpGtFloat", float.class, float.class);
    141     int result = (Integer)m.invoke(null, a, b);
    142     return result;
    143   }
    144 
    145   private static int smaliCmpLtFloat(float a, float b) throws Exception {
    146     Class<?> c = Class.forName("TestCmp");
    147     Method m = c.getMethod("$opt$CmpLtFloat", float.class, float.class);
    148     int result = (Integer)m.invoke(null, a, b);
    149     return result;
    150   }
    151 
    152   private static int smaliCmpGtDouble(double a, double b) throws Exception {
    153     Class<?> c = Class.forName("TestCmp");
    154     Method m = c.getMethod("$opt$CmpGtDouble", double.class, double.class);
    155     int result = (Integer)m.invoke(null, a, b);
    156     return result;
    157   }
    158 
    159   private static int smaliCmpLtDouble(double a, double b) throws Exception {
    160     Class<?> c = Class.forName("TestCmp");
    161     Method m = c.getMethod("$opt$CmpLtDouble", double.class, double.class);
    162     int result = (Integer)m.invoke(null, a, b);
    163     return result;
    164   }
    165 
    166     public static void expectEquals(int expected, int result) {
    167     if (expected != result) {
    168       throw new Error("Expected: " + expected + ", found: " + result);
    169     }
    170   }
    171 
    172   public static void expectLt(long a, long b) {
    173     if (!$opt$lt(a, b)) {
    174       throw new Error("Expected: " + a + " < " + b);
    175     }
    176   }
    177 
    178   public static void expectGt(long a, long b) {
    179     if (!$opt$gt(a, b)) {
    180       throw new Error("Expected: " + a + " > " + b);
    181     }
    182   }
    183 
    184   public static void expectLt(float a, float b) {
    185     if (!$opt$lt(a, b)) {
    186       throw new Error("Expected: " + a + " < " + b);
    187     }
    188   }
    189 
    190   public static void expectGt(float a, float b) {
    191     if (!$opt$gt(a, b)) {
    192       throw new Error("Expected: " + a + " > " + b);
    193     }
    194   }
    195 
    196   public static void expectFalse(float a, float b) {
    197     if ($opt$lt(a, b)) {
    198       throw new Error("Not expecting: " + a + " < " + b);
    199     }
    200     if ($opt$gt(a, b)) {
    201       throw new Error("Not expecting: " + a + " > " + b);
    202     }
    203   }
    204 
    205   public static void expectLt(double a, double b) {
    206     if (!$opt$lt(a, b)) {
    207       throw new Error("Expected: " + a + " < " + b);
    208     }
    209   }
    210 
    211   public static void expectGt(double a, double b) {
    212     if (!$opt$gt(a, b)) {
    213       throw new Error("Expected: " + a + " > " + b);
    214     }
    215   }
    216 
    217   public static void expectFalse(double a, double b) {
    218     if ($opt$lt(a, b)) {
    219       throw new Error("Not expecting: " + a + " < " + b);
    220     }
    221     if ($opt$gt(a, b)) {
    222       throw new Error("Not expecting: " + a + " > " + b);
    223     }
    224   }
    225 
    226 }
    227 
    228