Create ReaderTest.java

Author: pjfanning

src/test/java/com/fasterxml/jackson/core/io/doubleparser/ReaderTest.java

@@ -0,0 +1,40 @@
+package com.fasterxml.jackson.core.io.doubleparser;
+
+import org.junit.jupiter.api.Test;
+
+import java.util.Random;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class ReaderTest {
+    private static final int LEN = 1000;
+    private static final String[] DOUBLE_STRINGS = new String[LEN];
+    private static final String[] FLOAT_STRINGS = new String[LEN];
+
+    static {
+        Random rnd = new Random();
+        for (int i = 0; i < LEN; i++) {
+            DOUBLE_STRINGS[i] = Double.toString(rnd.nextDouble());
+            FLOAT_STRINGS[i] = Float.toString(rnd.nextFloat());
+        }
+    }
+
+    @Test
+    void verifyDoubles() {
+        for (int i = 0; i < LEN; i++) {
+            double fd = FastDoubleParser.parseDouble(DOUBLE_STRINGS[i]);
+            double jd = Double.parseDouble(DOUBLE_STRINGS[i]);
+            assertEquals(jd, fd);
+        }
+    }
+
+    @Test
+    void verifyFloats() {
+        for (int i = 0; i < LEN; i++) {
+            float ff = FastFloatParser.parseFloat(FLOAT_STRINGS[i]);
+            float jf = Float.parseFloat(FLOAT_STRINGS[i]);
+            assertEquals(jf, ff);
+        }
+    }
+
+}