PDFBOX-5729: add test for Gujarati, by JAVAUSER

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1914560 13f79535-47bb-0310-9956-ffa450edef68

pdfbox/src/test/java/org/apache/pdfbox/it/gsub/GsubWorkerForGujaratiTest.java

@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.pdfbox.it.gsub;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import org.apache.fontbox.ttf.CmapLookup;
+import org.apache.fontbox.ttf.gsub.GsubWorker;
+import org.apache.fontbox.ttf.gsub.GsubWorkerFactory;
+import org.apache.fontbox.ttf.gsub.GsubWorkerForGujarati;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.font.PDType0Font;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+
+/**
+ * Integration test for {@link GsubWorkerForGujarati}. Has various combinations of glyphs to test
+ * proper working of the GSUB system.
+ *
+ * @author JAVAUSER
+ *
+ */
+class GsubWorkerForGujaratiTest
+{
+
+    private static final String LOHIT_GUJARATI_TTF = "/org/apache/pdfbox/ttf/Lohit-Gujarati.ttf";
+
+    private CmapLookup cmapLookup;
+    private GsubWorker gsubWorkerForGujarati;
+
+    @BeforeEach
+    public void init() throws IOException
+    {
+        try (PDDocument doc = new PDDocument())
+        {
+            PDType0Font font = PDType0Font.load(doc,
+                    GsubWorkerForGujaratiTest.class.getResourceAsStream(LOHIT_GUJARATI_TTF), true);
+
+            cmapLookup = font.getCmapLookup();
+            gsubWorkerForGujarati = new GsubWorkerFactory().getGsubWorker(cmapLookup, font.getGsubData());
+        }
+    }
+
+    @Test
+    void testApplyTransforms_akhn()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(330,331,304, 251);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ક્ષજ્ઞત્તશ્ર"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_rphf()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(98,335);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ર્સ"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_rkrf()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(242,228,250);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("પ્રક્રવ્ર"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_blwf()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(76,332);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ટ્ર"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_half()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(205,195,206);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ત્ચ્થ્"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_vatu()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(237,245,233);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ત્રભ્રજ્ર"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_cjct()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(309,312,305);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("દ્ધદ્નદ્ય"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_pres()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(284,294,314,315);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("ગ્નટ્ટપ્તલ્લ"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_abvs()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(92,255,92,258,91,102,336);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("રેંરૈંર્યાં"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Test
+    void testApplyTransforms_blws()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(278,76,333,337,276);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("હૃટ્રુણુરુ"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    @Disabled
+    @Test
+    void testApplyTransforms_psts()
+    {
+        // given
+        List<Integer> glyphsAfterGsub = Arrays.asList(280, 273, 92, 261);
+
+        // when
+        List<Integer> result = gsubWorkerForGujarati.applyTransforms(getGlyphIds("જીઈંરીં"));
+
+        // then
+        assertEquals(glyphsAfterGsub, result);
+    }
+
+    private List<Integer> getGlyphIds(String word)
+    {
+        List<Integer> originalGlyphIds = new ArrayList<>();
+
+        for (char unicodeChar : word.toCharArray())
+        {
+            int glyphId = cmapLookup.getGlyphId(unicodeChar);
+            assertTrue(glyphId > 0);
+            originalGlyphIds.add(glyphId);
+        }
+
+        return originalGlyphIds;
+    }
+
+}