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      1 // Copyright 2014 The Android Open Source Project
      2 //
      3 // This software is licensed under the terms of the GNU General Public
      4 // License version 2, as published by the Free Software Foundation, and
      5 // may be copied, distributed, and modified under those terms.
      6 //
      7 // This program is distributed in the hope that it will be useful,
      8 // but WITHOUT ANY WARRANTY; without even the implied warranty of
      9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     10 // GNU General Public License for more details.
     11 
     12 #include "android/base/StringFormat.h"
     13 
     14 #include <gtest/gtest.h>
     15 
     16 #include "android/base/String.h"
     17 
     18 namespace android {
     19 namespace base {
     20 
     21 TEST(StringFormat, EmptyString) {
     22     String s = StringFormat("");
     23     EXPECT_TRUE(s.empty());
     24     EXPECT_STREQ("", s.c_str());
     25 }
     26 
     27 TEST(StringFormat, SimpleString) {
     28     String s = StringFormat("foobar");
     29     EXPECT_STREQ("foobar", s.c_str());
     30 }
     31 
     32 TEST(StringFormat, SimpleDecimal) {
     33     String s = StringFormat("Pi is about %d.%d\n", 3, 1415);
     34     EXPECT_STREQ("Pi is about 3.1415\n", s.c_str());
     35 }
     36 
     37 TEST(StringFormat, VeryLongString) {
     38     static const char kPiece[] = "A hospital bed is a parked taxi with the meter running - Groucho Marx. ";
     39     const size_t kPieceLen = sizeof(kPiece) - 1U;
     40     String s = StringFormat("%s%s%s%s%s%s%s",
     41                             kPiece,
     42                             kPiece,
     43                             kPiece,
     44                             kPiece,
     45                             kPiece,
     46                             kPiece,
     47                             kPiece
     48                            );
     49     EXPECT_EQ(7U * kPieceLen, s.size());
     50     for (size_t n = 0; n < 7U; ++n) {
     51         String s2 = String(s.c_str() + n * kPieceLen, kPieceLen);
     52         EXPECT_STREQ(kPiece, s2.c_str()) << "Index #" << n;
     53     }
     54 }
     55 
     56 TEST(StringAppendFormat, EmptyString) {
     57     String s = "foo";
     58     StringAppendFormat(&s, "");
     59     EXPECT_EQ(3U, s.size());
     60     EXPECT_STREQ("foo", s.c_str());
     61 }
     62 
     63 TEST(StringAppendFormat, SimpleString) {
     64     String s = "foo";
     65     StringAppendFormat(&s, "bar");
     66     EXPECT_EQ(6U, s.size());
     67     EXPECT_STREQ("foobar", s.c_str());
     68 }
     69 
     70 TEST(StringAppendFormat, VeryLongString) {
     71     static const char kPiece[] = "A hospital bed is a parked taxi with the meter running - Groucho Marx. ";
     72     const size_t kPieceLen = sizeof(kPiece) - 1U;
     73     const size_t kCount = 12;
     74     String s;
     75     for (size_t n = 0; n < kCount; ++n) {
     76         StringAppendFormat(&s, "%s", kPiece);
     77     }
     78 
     79     EXPECT_EQ(kCount * kPieceLen, s.size());
     80     for (size_t n = 0; n < kCount; ++n) {
     81         String s2 = String(s.c_str() + n * kPieceLen, kPieceLen);
     82         EXPECT_STREQ(kPiece, s2.c_str()) << "Index #" << n;
     83     }
     84 }
     85 
     86 }  // namespace base
     87 }  // namespace android
     88