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      1 /*
      2  * Copyright 2011 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "Test.h"
      9 
     10 // Include the implementation so we can make an appropriate template instance.
     11 #include "SkAdvancedTypefaceMetrics.cpp"
     12 
     13 using namespace skia_advanced_typeface_metrics_utils;
     14 
     15 namespace {
     16 
     17 // Negative values and zeros in a range plus trailing zeros.
     18 //                        0  1   2  3  4  5  6  7  8  9 10 11 12 13 14
     19 const int16_t data1[] = {-1, 0, -3, 4, 5, 6, 7, 0, 0, 0, 8, 0, 0, 0, 0};
     20 const char* expected1 = "0[-1 0 -3 4 5 6 7 0 0 0 8]";
     21 
     22 // Run with leading and trailing zeros.
     23 // Test rules: d         0  1  2    3    4    5    6    7    8    9 10 11
     24 const int16_t data2[] = {0, 0, 0, 100, 100, 100, 100, 100, 100, 100, 0, 0};
     25 const char* expected2 = "3 9 100";
     26 
     27 // Removing 0's from a range.
     28 // Test rules: a         0  1  2  3  4  5  6  7  8  9 10 11
     29 const int16_t data3[] = {1, 2, 0, 0, 0, 3, 4, 0, 0, 0, 0, 5};
     30 const char* expected3 = "0[1 2 0 0 0 3 4] 11[5]";
     31 
     32 // Removing 0's from a run/range and between runs.
     33 // Test rules: a, b      0  1  2  3  4  5  6  7  8  9 10 11 12 14 15
     34 const int16_t data4[] = {1, 0, 0, 0, 1, 2, 2, 2, 3, 0, 0, 0, 0, 3, 4};
     35 const char* expected4 = "0[1 0 0 0 1] 5 7 2 8[3] 13[3 4]";
     36 
     37 // Runs that starts outside a range.
     38 // Test rules: a, e      0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16 17
     39 const int16_t data5[] = {1, 1, 2, 3, 0, 0, 0, 0, 5, 5, 6, 7, 0, 0, 0, 0, 8, 0};
     40 const char* expected5 = "0 1 1 2[2 3] 8 9 5 10[6 7] 16[8]";
     41 
     42 // Zeros and runs that should be broken out.
     43 // Test rules: a, b, e   0  1  2  3  4  5  6  7  8  9 10 11 12 13
     44 const int16_t data6[] = {1, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 5, 5, 6};
     45 const char* expected6 = "0[1] 5[1 2 3 3 4] 10 12 5 13[6]";
     46 
     47 // Don't cares that aren't enough to break out a run.
     48 // Test rules: c         0  1   2   3  4  5
     49 const int16_t data7[] = {1, 2, 10, 11, 2, 3};
     50 const char* expected7 = "0[1 2 10 11 2 3]";
     51 const uint32_t subset7[] = {0, 1, 4, 5};
     52 const char* expectedSubset7 = "0[1 2 0 0 2 3]";
     53 
     54 // Don't cares that are enough to break out a run.
     55 // Test rules: c         0  1   2   3  4   5  6
     56 const int16_t data8[] = {1, 2, 10, 11, 12, 2, 3};
     57 const char* expected8 = "0[1 2 10 11 12 2 3]";
     58 const uint32_t subset8[] = {0, 1, 5, 6};
     59 const char* expectedSubset8 = "0[1] 1 5 2 6[3]";
     60 
     61 // Leading don't cares.
     62 // Test rules: d         0  1   2  3  4
     63 const int16_t data9[] = {1, 1, 10, 2, 3};
     64 const char* expected9 = "0 1 1 2[10 2 3]";
     65 const uint32_t subset9[] = {0, 1, 3, 4};
     66 const char* expectedSubset9 = "0 1 1 3[2 3]";
     67 
     68 // Almost run of don't cares inside a range.
     69 // Test rules: c          0  1   2   3   4  5
     70 const int16_t data10[] = {1, 2, 10, 11, 12, 3};
     71 const char* expected10 = "0[1 2 10 11 12 3]";
     72 const uint32_t subset10[] = {0, 1, 5};
     73 const char* expectedSubset10 = "0[1 2 0 0 0 3]";
     74 
     75 // Run of don't cares inside a range.
     76 // Test rules: c          0  1   2   3   4   5  6
     77 const int16_t data11[] = {1, 2, 10, 11, 12, 13, 3};
     78 const char* expected11 = "0[1 2 10 11 12 13 3]";
     79 const uint32_t subset11[] = {0, 1, 6};
     80 const char* expectedSubset11 = "0[1 2] 6[3]";
     81 
     82 // Almost run within a range with leading don't cares.
     83 // Test rules: c          0   1   2  3   4   5  6
     84 const int16_t data12[] = {1, 10, 11, 2, 12, 13, 3};
     85 const char* expected12 = "0[1 10 11 2 12 13 3]";
     86 const uint32_t subset12[] = {0, 3, 6};
     87 const char* expectedSubset12 = "0[1 0 0 2 0 0 3]";
     88 
     89 // Run within a range with leading don't cares.
     90 // Test rules: c          0   1   2  3  4   5   6  7
     91 const int16_t data13[] = {1, 10, 11, 2, 2, 12, 13, 3};
     92 const char* expected13 = "0[1 10 11 2 2 12 13 3]";
     93 const uint32_t subset13[] = {0, 3, 4, 7};
     94 const char* expectedSubset13 = "0[1] 1 6 2 7[3]";
     95 
     96 // Enough don't cares to breakup something.
     97 // Test rules: a          0  1  2  3  4  5
     98 const int16_t data14[] = {1, 0, 0, 0, 0, 2};
     99 const char* expected14 = "0[1] 5[2]";
    100 const uint32_t subset14[] = {0, 5};
    101 const char* expectedSubset14 = "0[1] 5[2]";
    102 
    103 }
    104 
    105 static SkString stringify_advance_data(
    106         SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>* data) {
    107     SkString result;
    108     bool leadingSpace = false;
    109     while (data != NULL) {
    110       if (leadingSpace) {
    111         result.append(" ");
    112       } else {
    113         leadingSpace = true;
    114       }
    115       switch(data->fType) {
    116         case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRun:
    117           result.appendf("%d %d %d", data->fStartId, data->fEndId,
    118               data->fAdvance[0]);
    119           break;
    120         case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kRange:
    121           result.appendf("%d[", data->fStartId);
    122           for (int i = 0; i < data->fAdvance.count(); ++i) {
    123             if (i > 0) {
    124               result.append(" ");
    125             }
    126             result.appendf("%d", data->fAdvance[i]);
    127           }
    128           result.append("]");
    129           break;
    130         case SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t>::kDefault:
    131           result.appendf("<Default=%d>", data->fAdvance[0]);
    132           break;
    133       }
    134       data = data->fNext.get();
    135     }
    136     return result;
    137 }
    138 
    139 class TestWData {
    140   public:
    141     TestWData(skiatest::Reporter* reporter,
    142               const int16_t advances[],
    143               int advanceLen,
    144               const uint32_t subset[],
    145               int subsetLen,
    146               const char* expected)
    147             : fAdvances(advances)
    148             , fAdvancesLen(advanceLen)
    149             , fSubset(subset)
    150             , fSubsetLen(subsetLen)
    151             , fExpected(expected) {
    152         REPORTER_ASSERT(reporter, RunTest());
    153     }
    154 
    155   private:
    156     const int16_t* fAdvances;
    157     const int fAdvancesLen;
    158     const uint32_t* fSubset;
    159     const int fSubsetLen;
    160     const char* fExpected;
    161 
    162     static bool getAdvance(TestWData* testCase, int gId, int16_t* advance) {
    163         if (gId >= 0 && gId < testCase->fAdvancesLen) {
    164             *advance = testCase->fAdvances[gId];
    165             return true;
    166         }
    167         return false;
    168     }
    169 
    170     bool RunTest() {
    171         SkTScopedPtr<SkAdvancedTypefaceMetrics::AdvanceMetric<int16_t> > result;
    172         result.reset(getAdvanceData(this, fAdvancesLen, fSubset, fSubsetLen,
    173                                     getAdvance));
    174 
    175         SkString stringResult = stringify_advance_data(result.get());
    176         if (!stringResult.equals(fExpected)) {
    177             printf("Expected: %s\n  Result: %s\n", fExpected,
    178                    stringResult.c_str());
    179             return false;
    180         }
    181         return true;
    182     }
    183 };
    184 
    185 static void TestWArray(skiatest::Reporter* reporter) {
    186     TestWData(reporter, data1, SK_ARRAY_COUNT(data1), NULL, 0, expected1);
    187     TestWData(reporter, data2, SK_ARRAY_COUNT(data2), NULL, 0, expected2);
    188     TestWData(reporter, data3, SK_ARRAY_COUNT(data3), NULL, 0, expected3);
    189     TestWData(reporter, data4, SK_ARRAY_COUNT(data4), NULL, 0, expected4);
    190     TestWData(reporter, data5, SK_ARRAY_COUNT(data5), NULL, 0, expected5);
    191     TestWData(reporter, data6, SK_ARRAY_COUNT(data6), NULL, 0, expected6);
    192     TestWData(reporter, data7, SK_ARRAY_COUNT(data7), NULL, 0, expected7);
    193     TestWData(reporter, data7, SK_ARRAY_COUNT(data7), subset7,
    194               SK_ARRAY_COUNT(subset7), expectedSubset7);
    195     TestWData(reporter, data8, SK_ARRAY_COUNT(data8), NULL, 0, expected8);
    196     TestWData(reporter, data8, SK_ARRAY_COUNT(data8), subset8,
    197               SK_ARRAY_COUNT(subset8), expectedSubset8);
    198     TestWData(reporter, data9, SK_ARRAY_COUNT(data9), NULL, 0, expected9);
    199     TestWData(reporter, data9, SK_ARRAY_COUNT(data9), subset9,
    200               SK_ARRAY_COUNT(subset9), expectedSubset9);
    201     TestWData(reporter, data10, SK_ARRAY_COUNT(data10), NULL, 0, expected10);
    202     TestWData(reporter, data10, SK_ARRAY_COUNT(data10), subset10,
    203               SK_ARRAY_COUNT(subset10), expectedSubset10);
    204     TestWData(reporter, data11, SK_ARRAY_COUNT(data11), NULL, 0, expected11);
    205     TestWData(reporter, data11, SK_ARRAY_COUNT(data11), subset11,
    206               SK_ARRAY_COUNT(subset11), expectedSubset11);
    207     TestWData(reporter, data12, SK_ARRAY_COUNT(data12), NULL, 0, expected12);
    208     TestWData(reporter, data12, SK_ARRAY_COUNT(data12), subset12,
    209               SK_ARRAY_COUNT(subset12), expectedSubset12);
    210     TestWData(reporter, data13, SK_ARRAY_COUNT(data13), NULL, 0, expected13);
    211     TestWData(reporter, data13, SK_ARRAY_COUNT(data13), subset13,
    212               SK_ARRAY_COUNT(subset13), expectedSubset13);
    213     TestWData(reporter, data14, SK_ARRAY_COUNT(data14), NULL, 0, expected14);
    214     TestWData(reporter, data14, SK_ARRAY_COUNT(data14), subset14,
    215               SK_ARRAY_COUNT(subset14), expectedSubset14);
    216 }
    217 
    218 #include "TestClassDef.h"
    219 DEFINE_TESTCLASS("WArray", WArrayTest, TestWArray)
    220