adding size preview tests

encoder/src/main/java/com/pedro/encoder/utils/gl/SizeCalculator.java

@@ -68,7 +68,7 @@ public static Pair<Point, Point> getViewport(AspectRatioMode mode, int previewWi
       int xf = previewWidth;
       int yf = previewHeight;
       if ((previewAspectRatio > 1f && streamAspectRatio > previewAspectRatio) ||
-          (streamAspectRatio <= 1f && previewAspectRatio <= 1 && streamAspectRatio > previewAspectRatio) ||
+          (streamAspectRatio <= 1f && previewAspectRatio <= 1f && streamAspectRatio > previewAspectRatio) ||
           (streamAspectRatio > 1f && previewAspectRatio < 1f)) {
         if (mode == AspectRatioMode.Adjust) {
           yf = streamHeight * previewWidth / streamWidth;

encoder/src/test/java/android/graphics/Point.java

@@ -0,0 +1,34 @@
+package android.graphics;
+
+import java.util.Objects;
+
+public class Point {
+    public int x;
+    public int y;
+
+    public Point(int x, int y) {
+        this.x = x;
+        this.y = y;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Point point = (Point) o;
+        return x == point.x && y == point.y;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(x, y);
+    }
+
+    @Override
+    public String toString() {
+        return "Point{" +
+                "x=" + x +
+                ", y=" + y +
+                '}';
+    }
+}

encoder/src/test/java/android/util/Pair.java

@@ -0,0 +1,34 @@
+package android.util;
+
+import java.util.Objects;
+
+public class Pair<F, S> {
+    public final F first;
+    public final S second;
+
+    public Pair(F first, S second) {
+        this.first = first;
+        this.second = second;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Pair<?, ?> pair = (Pair<?, ?>) o;
+        return Objects.equals(first, pair.first) && Objects.equals(second, pair.second);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(first, second);
+    }
+
+    @Override
+    public String toString() {
+        return "Pair{" +
+                "first=" + first +
+                ", second=" + second +
+                '}';
+    }
+}

encoder/src/test/java/com/pedro/encoder/SizeCalculatorTest.kt

@@ -0,0 +1,72 @@
+package com.pedro.encoder
+
+import android.util.Pair
+import android.graphics.Point
+import com.pedro.encoder.utils.gl.AspectRatioMode
+import com.pedro.encoder.utils.gl.SizeCalculator
+import junit.framework.TestCase.assertEquals
+import org.junit.Test
+
+
+/**
+ * Possible cases:
+ *
+ * stream to preview (Adjust and Fill)
+ * 1:1 to 1:1
+ * 1:1 to 16:9
+ * 1:1 to 9:16
+ *
+ * 16:9 to 16:9
+ * 16:9 to 1:1
+ * 16:9 to 9:16
+ *
+ * 9:16 to 9:16
+ * 9:16 to 16:9
+ * 9:16 to 1:1
+ */
+class SizeCalculatorTest {
+
+    @Test
+    fun testAdjust1_1toX() {
+        val to1_1 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 100, 100, 100, 100)
+        assertEquals(Pair(Point(0, 0), Point(100, 100)), to1_1)
+
+        val to16_9 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 160, 90, 100, 100)
+        assertEquals(Pair(Point(35, 0), Point(90, 90)), to16_9)
+
+        val to9_16 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 90, 160, 100, 100)
+        assertEquals(Pair(Point(0, 35), Point(90, 90)), to9_16)
+    }
+
+    @Test
+    fun testAdjust16_9toX() {
+        val to1_1 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 100, 100, 100, 100)
+        assertEquals(Pair(Point(0, 0), Point(100, 100)), to1_1)
+
+        val to16_9 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 160, 90, 100, 100)
+        assertEquals(Pair(Point(35, 0), Point(90, 90)), to16_9)
+
+        val to9_16 = SizeCalculator.getViewport(AspectRatioMode.Adjust, 90, 160, 100, 100)
+        assertEquals(Pair(Point(0, 35), Point(90, 90)), to9_16)
+    }
+
+    @Test
+    fun testAdjust9_16toX() {
+
+    }
+
+    @Test
+    fun testFill1_1toX() {
+
+    }
+
+    @Test
+    fun testFill16_9toX() {
+
+    }
+
+    @Test
+    fun testFill9_16toX() {
+
+    }
+}