1 files changed, 26 insertions, 19 deletions
diff --git a/tests/GlyphRunTest.cpp b/tests/GlyphRunTest.cpp
index 46b4715c61..0e0c441b75 100644
--- a/tests/GlyphRunTest.cpp
+++ b/tests/GlyphRunTest.cpp
@@ -11,25 +11,32 @@
 
 #include "Test.h"
 
-DEF_TEST(GlyphSetBasic, reporter) {
-    SkGlyphSet set;
-
-    std::vector<SkGlyphID> unique;
-
-    set.reuse(10, &unique);
-    REPORTER_ASSERT(reporter, set.add(7) == 0);
-    REPORTER_ASSERT(reporter, set.add(3) == 1);
-    set.reuse(10, &unique);
-    REPORTER_ASSERT(reporter, set.add(5) == 0);
-    REPORTER_ASSERT(reporter, set.add(8) == 1);
-    REPORTER_ASSERT(reporter, set.add(3) == 2);
-
-    REPORTER_ASSERT(reporter, unique.size() == 5);
-    REPORTER_ASSERT(reporter, unique[0] == 7);
-    REPORTER_ASSERT(reporter, unique[1] == 3);
-    REPORTER_ASSERT(reporter, unique[2] == 5);
-    REPORTER_ASSERT(reporter, unique[3] == 8);
-    REPORTER_ASSERT(reporter, unique[4] == 3);
+DEF_TEST(GlyphRunGlyphIDSetBasic, reporter) {
+    SkGlyphID glyphs[] = {100, 3, 240, 3, 234};
+    auto glyphIDs = SkSpan<const SkGlyphID>(glyphs, SK_ARRAY_COUNT(glyphs));
+    int universeSize = 1000;
+    SkGlyphID uniqueGlyphs[SK_ARRAY_COUNT(glyphs)];
+    uint16_t denseIndices[SK_ARRAY_COUNT(glyphs)];
+
+    SkGlyphIDSet gs;
+    auto uniqueGlyphIDs = gs.uniquifyGlyphIDs(universeSize, glyphIDs, uniqueGlyphs, denseIndices);
+
+    std::vector<SkGlyphID> test{uniqueGlyphIDs.begin(), uniqueGlyphIDs.end()};
+    std::sort(test.begin(), test.end());
+    auto newEnd = std::unique(test.begin(), test.end());
+    REPORTER_ASSERT(reporter, uniqueGlyphIDs.size() == newEnd - test.begin());
+    REPORTER_ASSERT(reporter, uniqueGlyphIDs.size() == 4);
+    {
+        uint16_t answer[] = {0, 1, 2, 1, 3};
+        REPORTER_ASSERT(reporter,
+                        std::equal(answer, std::end(answer), denseIndices));
+    }
+
+    {
+        SkGlyphID answer[] = {100, 3, 240, 234};
+        REPORTER_ASSERT(reporter,
+                        std::equal(answer, std::end(answer), uniqueGlyphs));
+    }
 }
 
 DEF_TEST(GlyphRunBasic, reporter) {