Disabled external gits

2022-04-07 18:43:21 +02:00
parent 182267a8cb
commit 88cb3426ad
1067 changed files with 102374 additions and 6 deletions
--- a/Alpano/tests/ch/epfl/alpano/dem/HgtDiscreteElevationModelTestP.java
+++ b/Alpano/tests/ch/epfl/alpano/dem/HgtDiscreteElevationModelTestP.java
@@ -0,0 +1,154 @@
+package ch.epfl.alpano.dem;
+
+import static java.nio.file.StandardCopyOption.REPLACE_EXISTING;
+import static java.nio.file.StandardOpenOption.CREATE_NEW;
+import static java.nio.file.StandardOpenOption.READ;
+import static java.nio.file.StandardOpenOption.WRITE;
+import static org.junit.Assert.assertEquals;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.ShortBuffer;
+import java.nio.channels.FileChannel;
+import java.nio.channels.FileChannel.MapMode;
+import java.nio.file.FileVisitResult;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.SimpleFileVisitor;
+import java.nio.file.attribute.BasicFileAttributes;
+
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+import ch.epfl.alpano.Interval1D;
+import ch.epfl.alpano.Interval2D;
+
+public class HgtDiscreteElevationModelTestP {
+    private final static long HGT_FILE_SIZE = 3601L * 3601L * 2L;
+    private static Path FAKE_HGT_DIR, FAKE_HGT_FILE;
+
+    @BeforeClass
+    public static void createFakeHgtFiles() throws IOException {
+        Path fakeHgtDir = Files.createTempDirectory("hgt");
+
+        Path fakeHgtFile = fakeHgtDir.resolve("empty.hgt");
+        try (FileChannel c = FileChannel.open(fakeHgtFile, CREATE_NEW, READ, WRITE)) {
+            // make sure the empty hgt file has the right size
+            c.map(MapMode.READ_WRITE, 0, HGT_FILE_SIZE).asShortBuffer();
+        }
+
+        FAKE_HGT_FILE = fakeHgtFile;
+        FAKE_HGT_DIR = fakeHgtDir;
+    }
+
+    @AfterClass
+    public static void deleteFakeHgtFiles() throws IOException {
+        Files.walkFileTree(FAKE_HGT_DIR, new SimpleFileVisitor<Path>() {
+            @Override
+            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
+                Files.delete(file);
+                return FileVisitResult.CONTINUE;
+            }
+
+            @Override
+            public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
+                if (exc != null)
+                    throw exc;
+                Files.delete(dir);
+                return FileVisitResult.CONTINUE;
+            }
+        });
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void constructorFailsWithTooShortName() throws Exception {
+        createHgtDemWithFileNamed("N47E010.hg");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void constructorFailsWithInvalidLatitudeLetter() throws Exception {
+        createHgtDemWithFileNamed("N4xE010.hgt");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void constructorFailsWithInvalidLongitudeLetter() throws Exception {
+        createHgtDemWithFileNamed("N47x010.hgt");
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void constructorFailsWithInexistantFile() throws Exception {
+        Path p = FAKE_HGT_DIR.resolve("N40E010.hgt");
+        try (DiscreteElevationModel d = new HgtDiscreteElevationModel(p.toFile())) {}
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void constructorFailsWithEmptyFile() throws Exception {
+        File f = FAKE_HGT_DIR.resolve("N41E010.hgt").toFile();
+        try (FileOutputStream s = new FileOutputStream(f)) {
+            s.write(0);
+        }
+        try (DiscreteElevationModel d = new HgtDiscreteElevationModel(f)) {}
+    }
+
+    @Test
+    public void constructorWorksInEcuador() throws Exception {
+        createHgtDemWithFileNamed("S03W078.hgt");
+    }
+
+    @Test
+    public void extentMatchesFileName() throws Exception {
+        int[] lons = new int[] { 1, 7 };
+        int[] lats = new int[] { 1, 47 };
+        for (int lon: lons) {
+            for (int lat: lats) {
+                Interval2D expectedExtent = new Interval2D(
+                        new Interval1D(lon * 3600, (lon + 1) * 3600),
+                        new Interval1D(lat * 3600, (lat + 1) * 3600));
+                String hgtFileName = String.format("N%02dE%03d.hgt", lat, lon);
+                Path p = copyEmptyHgtFileAs(hgtFileName);
+                try (HgtDiscreteElevationModel dem = new HgtDiscreteElevationModel(p.toFile())) {
+                    assertEquals(expectedExtent, dem.extent());
+                }
+            }
+        }
+    }
+
+    @Test(expected = IllegalArgumentException.class)
+    public void elevationSampleFailsForIndexNotInExtent() throws Exception {
+        String hgtFileName = "N02E002.hgt";
+        Path p = copyEmptyHgtFileAs(hgtFileName);
+        try (HgtDiscreteElevationModel dem = new HgtDiscreteElevationModel(p.toFile())) {
+            dem.elevationSample(10, 10);
+        }
+    }
+
+    @Test
+    public void elevationSampleIsCorrectInFourCorners() throws Exception {
+        Path p = FAKE_HGT_DIR.resolve("N01E001.hgt");
+        try (FileChannel c = FileChannel.open(p, CREATE_NEW, READ, WRITE)) {
+            ShortBuffer b = c.map(MapMode.READ_WRITE, 0, HGT_FILE_SIZE).asShortBuffer();
+            b.put(0, (short)1);
+            b.put(3600, (short) 2);
+            b.put(3601 * 3600, (short) 3);
+            b.put(3601 * 3601 - 1, (short) 4);
+        }
+        try (HgtDiscreteElevationModel dem = new HgtDiscreteElevationModel(p.toFile())) {
+            assertEquals(0, dem.elevationSample(4000, 4000), 1e-10);
+            assertEquals(1, dem.elevationSample(3600, 7200), 1e-10);
+            assertEquals(2, dem.elevationSample(7200, 7200), 1e-10);
+            assertEquals(3, dem.elevationSample(3600, 3600), 1e-10);
+            assertEquals(4, dem.elevationSample(7200, 3600), 1e-10);
+        }
+    }
+
+    private static void createHgtDemWithFileNamed(String hgtFileName) throws Exception {
+        Path p = copyEmptyHgtFileAs(hgtFileName);
+        try (DiscreteElevationModel d = new HgtDiscreteElevationModel(p.toFile())) {}
+    }
+
+    private static Path copyEmptyHgtFileAs(String hgtFileName) throws IOException {
+        return Files.copy(FAKE_HGT_FILE, FAKE_HGT_DIR.resolve(hgtFileName), REPLACE_EXISTING);
+    }
+}