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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 #include "Test.h"
      9 #include "SkString.h"
     10 #include <stdarg.h>
     11 
     12 
     13 // Windows vsnprintf doesn't 0-terminate safely), but is so far
     14 // encapsulated in SkString that we can't test it directly.
     15 
     16 #ifdef SK_BUILD_FOR_WIN
     17     #define VSNPRINTF(buffer, size, format, args)   \
     18         vsnprintf_s(buffer, size, _TRUNCATE, format, args)
     19 #else
     20     #define VSNPRINTF   vsnprintf
     21 #endif
     22 
     23 #define ARGS_TO_BUFFER(format, buffer, size)        \
     24     do {                                            \
     25         va_list args;                               \
     26         va_start(args, format);                     \
     27         VSNPRINTF(buffer, size, format, args);      \
     28         va_end(args);                               \
     29     } while (0)
     30 
     31 static void printfAnalog(char* buffer, int size, const char format[], ...) {
     32     ARGS_TO_BUFFER(format, buffer, size);
     33 }
     34 
     35 
     36 
     37 static void TestString(skiatest::Reporter* reporter) {
     38     SkString    a;
     39     SkString    b((size_t)0);
     40     SkString    c("");
     41     SkString    d(NULL, 0);
     42 
     43     REPORTER_ASSERT(reporter, a.isEmpty());
     44     REPORTER_ASSERT(reporter, a == b && a == c && a == d);
     45 
     46     a.set("hello");
     47     b.set("hellox", 5);
     48     c.set(a);
     49     d.resize(5);
     50     memcpy(d.writable_str(), "helloz", 5);
     51 
     52     REPORTER_ASSERT(reporter, !a.isEmpty());
     53     REPORTER_ASSERT(reporter, a.size() == 5);
     54     REPORTER_ASSERT(reporter, a == b && a == c && a == d);
     55     REPORTER_ASSERT(reporter, a.equals("hello", 5));
     56     REPORTER_ASSERT(reporter, a.equals("hello"));
     57     REPORTER_ASSERT(reporter, !a.equals("help"));
     58 
     59     REPORTER_ASSERT(reporter,  a.startsWith("hell"));
     60     REPORTER_ASSERT(reporter,  a.startsWith('h'));
     61     REPORTER_ASSERT(reporter, !a.startsWith( "ell"));
     62     REPORTER_ASSERT(reporter, !a.startsWith( 'e'));
     63     REPORTER_ASSERT(reporter,  a.startsWith(""));
     64     REPORTER_ASSERT(reporter,  a.endsWith("llo"));
     65     REPORTER_ASSERT(reporter,  a.endsWith('o'));
     66     REPORTER_ASSERT(reporter, !a.endsWith("ll" ));
     67     REPORTER_ASSERT(reporter, !a.endsWith('l'));
     68     REPORTER_ASSERT(reporter,  a.endsWith(""));
     69     REPORTER_ASSERT(reporter,  a.contains("he"));
     70     REPORTER_ASSERT(reporter,  a.contains("ll"));
     71     REPORTER_ASSERT(reporter,  a.contains("lo"));
     72     REPORTER_ASSERT(reporter,  a.contains("hello"));
     73     REPORTER_ASSERT(reporter, !a.contains("hellohello"));
     74     REPORTER_ASSERT(reporter,  a.contains(""));
     75     REPORTER_ASSERT(reporter,  a.contains('e'));
     76     REPORTER_ASSERT(reporter, !a.contains('z'));
     77 
     78     SkString    e(a);
     79     SkString    f("hello");
     80     SkString    g("helloz", 5);
     81 
     82     REPORTER_ASSERT(reporter, a == e && a == f && a == g);
     83 
     84     b.set("world");
     85     c = b;
     86     REPORTER_ASSERT(reporter, a != b && a != c && b == c);
     87 
     88     a.append(" world");
     89     e.append("worldz", 5);
     90     e.insert(5, " ");
     91     f.set("world");
     92     f.prepend("hello ");
     93     REPORTER_ASSERT(reporter, a.equals("hello world") && a == e && a == f);
     94 
     95     a.reset();
     96     b.resize(0);
     97     REPORTER_ASSERT(reporter, a.isEmpty() && b.isEmpty() && a == b);
     98 
     99     a.set("a");
    100     a.set("ab");
    101     a.set("abc");
    102     a.set("abcd");
    103 
    104     a.set("");
    105     a.appendS64(72036854775808LL, 0);
    106     REPORTER_ASSERT(reporter, a.equals("72036854775808"));
    107 
    108     a.set("");
    109     a.appendS64(-1844674407370LL, 0);
    110     REPORTER_ASSERT(reporter, a.equals("-1844674407370"));
    111 
    112     a.set("");
    113     a.appendS64(73709551616LL, 15);
    114     REPORTER_ASSERT(reporter, a.equals("000073709551616"));
    115 
    116     a.set("");
    117     a.appendS64(-429496729612LL, 15);
    118     REPORTER_ASSERT(reporter, a.equals("-000429496729612"));
    119 
    120     static const struct {
    121         SkScalar    fValue;
    122         const char* fString;
    123     } gRec[] = {
    124         { 0,            "0" },
    125         { SK_Scalar1,   "1" },
    126         { -SK_Scalar1,  "-1" },
    127         { SK_Scalar1/2, "0.5" },
    128 #ifdef SK_SCALAR_IS_FLOAT
    129   #ifdef SK_BUILD_FOR_WIN
    130         { 3.4028234e38f,   "3.4028235e+038" },
    131         { -3.4028234e38f, "-3.4028235e+038" },
    132   #else
    133         { 3.4028234e38f,   "3.4028235e+38" },
    134         { -3.4028234e38f, "-3.4028235e+38" },
    135   #endif
    136 #endif
    137     };
    138     for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
    139         a.reset();
    140         a.appendScalar(gRec[i].fValue);
    141         REPORTER_ASSERT(reporter, a.size() <= SkStrAppendScalar_MaxSize);
    142 //        SkDebugf(" received <%s> expected <%s>\n", a.c_str(), gRec[i].fString);
    143         REPORTER_ASSERT(reporter, a.equals(gRec[i].fString));
    144     }
    145 
    146     REPORTER_ASSERT(reporter, SkStringPrintf("%i", 0).equals("0"));
    147 
    148     char buffer [40];
    149     memset(buffer, 'a', 40);
    150     REPORTER_ASSERT(reporter, buffer[18] == 'a');
    151     REPORTER_ASSERT(reporter, buffer[19] == 'a');
    152     REPORTER_ASSERT(reporter, buffer[20] == 'a');
    153     printfAnalog(buffer, 20, "%30d", 0);
    154     REPORTER_ASSERT(reporter, buffer[18] == ' ');
    155     REPORTER_ASSERT(reporter, buffer[19] == 0);
    156     REPORTER_ASSERT(reporter, buffer[20] == 'a');
    157 
    158 }
    159 
    160 #include "TestClassDef.h"
    161 DEFINE_TESTCLASS("String", StringTestClass, TestString)
    162