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