src/svg/svg-length-test.h

   1 #include <cxxtest/TestSuite.h>
   2
   3 #include "svg/svg-length.h"
   4 #include <glib.h>
   5 #include <utility>
   6
   7 // function internal to svg-length.cpp:
   8 gchar const *sp_svg_length_get_css_units(SVGLength::Unit unit);
   9
  10 class SvgLengthTest : public CxxTest::TestSuite
  11 {
  12 private:
  13     struct test_t {
  14         char const* str; SVGLength::Unit unit; float value; float computed;
  15     };
  16     static test_t const absolute_tests[12];
  17     static test_t const relative_tests[3];
  18     static char const * fail_tests[8];
  19 public:
  20     SvgLengthTest() {
  21     }
  22
  23 // createSuite and destroySuite get us per-suite setup and teardown
  24 // without us having to worry about static initialization order, etc.
  25     static SvgLengthTest *createSuite() { return new SvgLengthTest(); }
  26     static void destroySuite( SvgLengthTest *suite ) { delete suite; }
  27
  28     void testRead()
  29     {
  30         for(size_t i=0; i<G_N_ELEMENTS(absolute_tests); i++) {
  31             SVGLength len;
  32             TSM_ASSERT(absolute_tests[i].str , len.read(absolute_tests[i].str));
  33             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.unit , absolute_tests[i].unit);
  34             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.value , absolute_tests[i].value);
  35             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.computed , absolute_tests[i].computed);
  36         }
  37         for(size_t i=0; i<G_N_ELEMENTS(relative_tests); i++) {
  38             SVGLength len;
  39             TSM_ASSERT(relative_tests[i].str , len.read(relative_tests[i].str));
  40             len.update(7,13,19);
  41             TSM_ASSERT_EQUALS(relative_tests[i].str , len.unit , relative_tests[i].unit);
  42             TSM_ASSERT_EQUALS(relative_tests[i].str , len.value , relative_tests[i].value);
  43             TSM_ASSERT_EQUALS(relative_tests[i].str , len.computed , relative_tests[i].computed);
  44         }
  45         for(size_t i=0; i<G_N_ELEMENTS(fail_tests); i++) {
  46             SVGLength len;
  47             TSM_ASSERT(fail_tests[i] , !len.read(fail_tests[i]));
  48         }
  49     }
  50
  51     void testReadOrUnset()
  52     {
  53         for(size_t i=0; i<G_N_ELEMENTS(absolute_tests); i++) {
  54             SVGLength len;
  55             len.readOrUnset(absolute_tests[i].str);
  56             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.unit , absolute_tests[i].unit);
  57             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.value , absolute_tests[i].value);
  58             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.computed , absolute_tests[i].computed);
  59         }
  60         for(size_t i=0; i<G_N_ELEMENTS(relative_tests); i++) {
  61             SVGLength len;
  62             len.readOrUnset(relative_tests[i].str);
  63             len.update(7,13,19);
  64             TSM_ASSERT_EQUALS(relative_tests[i].str , len.unit , relative_tests[i].unit);
  65             TSM_ASSERT_EQUALS(relative_tests[i].str , len.value , relative_tests[i].value);
  66             TSM_ASSERT_EQUALS(relative_tests[i].str , len.computed , relative_tests[i].computed);
  67         }
  68         for(size_t i=0; i<G_N_ELEMENTS(fail_tests); i++) {
  69             SVGLength len;
  70             len.readOrUnset(fail_tests[i], SVGLength::INCH, 123, 456);
  71             TSM_ASSERT_EQUALS(fail_tests[i] , len.unit , SVGLength::INCH);
  72             TSM_ASSERT_EQUALS(fail_tests[i] , len.value , 123);
  73             TSM_ASSERT_EQUALS(fail_tests[i] , len.computed , 456);
  74         }
  75     }
  76
  77     void testReadAbsolute()
  78     {
  79         for(size_t i=0; i<G_N_ELEMENTS(absolute_tests); i++) {
  80             SVGLength len;
  81             TSM_ASSERT(absolute_tests[i].str , len.readAbsolute(absolute_tests[i].str));
  82             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.unit , absolute_tests[i].unit);
  83             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.value , absolute_tests[i].value);
  84             TSM_ASSERT_EQUALS(absolute_tests[i].str , len.computed , absolute_tests[i].computed);
  85         }
  86         for(size_t i=0; i<G_N_ELEMENTS(relative_tests); i++) {
  87             SVGLength len;
  88             TSM_ASSERT(relative_tests[i].str , !len.readAbsolute(relative_tests[i].str));
  89         }
  90         for(size_t i=0; i<G_N_ELEMENTS(fail_tests); i++) {
  91             SVGLength len;
  92             TSM_ASSERT(fail_tests[i] , !len.readAbsolute(fail_tests[i]));
  93         }
  94     }
  95
  96     void testEnumMappedToString()
  97     {
  98         for ( int i = (static_cast<int>(SVGLength::NONE) + 1); i <= static_cast<int>(SVGLength::LAST_UNIT); i++ ) {
  99             SVGLength::Unit target = static_cast<SVGLength::Unit>(i);
 100             // PX is a special case where we don't have a unit string
 101             if ( (target != SVGLength::PX) && (target != SVGLength::FOOT) ) {
 102                 gchar const* val = sp_svg_length_get_css_units(target);
 103                 TSM_ASSERT_DIFFERS(i, val, "");
 104             }
 105         }
 106     }
 107
 108     // Ensure that all unit suffix strings used are allowed by SVG
 109     void testStringsAreValidSVG()
 110     {
 111         gchar const* valid[] = {"", "em", "ex", "px", "pt", "pc", "cm", "mm", "in", "%"};
 112         std::set<std::string> validStrings(valid, valid + G_N_ELEMENTS(valid));
 113         for ( int i = (static_cast<int>(SVGLength::NONE) + 1); i <= static_cast<int>(SVGLength::LAST_UNIT); i++ ) {
 114             SVGLength::Unit target = static_cast<SVGLength::Unit>(i);
 115             gchar const* val = sp_svg_length_get_css_units(target);
 116             TSM_ASSERT(i, validStrings.find(std::string(val)) != validStrings.end());
 117         }
 118     }
 119
 120     // Ensure that all unit suffix strings allowed by SVG are covered by enum
 121     void testValidSVGStringsSupported()
 122     {
 123         // Note that "px" is ommitted from the list, as it will be assumed to be so if not explicitly set.
 124         gchar const* valid[] = {"em", "ex", "pt", "pc", "cm", "mm", "in", "%"};
 125         std::set<std::string> validStrings(valid, valid + G_N_ELEMENTS(valid));
 126         for ( int i = (static_cast<int>(SVGLength::NONE) + 1); i <= static_cast<int>(SVGLength::LAST_UNIT); i++ ) {
 127             SVGLength::Unit target = static_cast<SVGLength::Unit>(i);
 128             gchar const* val = sp_svg_length_get_css_units(target);
 129             std::set<std::string>::iterator iter = validStrings.find(std::string(val));
 130             if (iter != validStrings.end()) {
 131                 validStrings.erase(iter);
 132             }
 133         }
 134         TSM_ASSERT_EQUALS(validStrings, validStrings.size(), 0u);
 135     }
 136
 137     // TODO: More tests
 138 };
 139
 140 SvgLengthTest::test_t const SvgLengthTest::absolute_tests[12] = {
 141     {"0",            SVGLength::NONE,   0        ,   0},
 142     {"1",            SVGLength::NONE,   1        ,   1},
 143     {"1.00001",      SVGLength::NONE,   1.00001  ,   1.00001},
 144     {"1px",          SVGLength::PX  ,   1        ,   1},
 145     {".1px",         SVGLength::PX  ,   0.1      ,   0.1},
 146     {"100pt",        SVGLength::PT  , 100        , 125},
 147     {"1e2pt",        SVGLength::PT  , 100        , 125},
 148     {"3pc",          SVGLength::PC  ,   3        ,  45},
 149     {"-3.5pc",       SVGLength::PC  ,  -3.5      ,  -3.5*15.},
 150     {"1.2345678mm",  SVGLength::MM  ,   1.2345678,   1.2345678*3.543307}, // TODO: More precise constants? (a 7 digit constant when the default precision is 8 digits?)
 151     {"123.45678cm", SVGLength::CM   , 123.45678  , 123.45678*35.43307},
 152     {"73.162987in",  SVGLength::INCH,  73.162987 ,  73.162987*90}};
 153 SvgLengthTest::test_t const SvgLengthTest::relative_tests[3] = {
 154     {"123em", SVGLength::EM,      123, 123. *  7.},
 155     {"123ex", SVGLength::EX,      123, 123. * 13.},
 156     {"123%",  SVGLength::PERCENT, 1.23, 1.23 * 19.}};
 157 char const * SvgLengthTest::fail_tests[8] = {
 158     "123 px",
 159     "123e",
 160     "123e+m",
 161     "123ec",
 162     "123pxt",
 163     "--123",
 164     "",
 165     "px"};
 166
 167 /*
 168   Local Variables:
 169   mode:c++
 170   c-file-style:"stroustrup"
 171   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 172   indent-tabs-mode:nil
 173   fill-column:99
 174   End:
 175 */
 176 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :