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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.geo;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
/**
* Tests for the DegreesParser class.
*
* @author Gunnar Gauslaa Bergem
*/
public class DegreesParserTestCase {
private static final double delta = 0.000000000001;
private DegreesParser parser;
/**
* Tests different inputs that should all produce 0 or -0.
*/
@Test
public void testZero() {
parser = new DegreesParser("N0;E0");
assertEquals(0d, parser.latitude, delta);
assertEquals(0d, parser.longitude, delta);
parser = new DegreesParser("S0;W0");
assertEquals(-0d, parser.latitude, delta);
assertEquals(-0d, parser.longitude, delta);
parser = new DegreesParser("N0.0;E0.0");
assertEquals(0d, parser.latitude, delta);
assertEquals(0d, parser.longitude, delta);
parser = new DegreesParser("S0.0;W0.0");
assertEquals(-0d, parser.latitude, delta);
assertEquals(-0d, parser.longitude, delta);
parser = new DegreesParser("N0\u00B00'0;E0\u00B00'0");
assertEquals(0d, parser.latitude, delta);
assertEquals(0d, parser.longitude, delta);
parser = new DegreesParser("S0\u00B00'0;W0\u00B00'0");
assertEquals(-0d, parser.latitude, delta);
assertEquals(-0d, parser.longitude, delta);
parser = new DegreesParser("S0o0'0;W0o0'0");
assertEquals(-0d, parser.latitude, delta);
assertEquals(-0d, parser.longitude, delta);
}
/**
* Tests inputs that are close to 0.
*/
@Test
public void testNearZero() {
parser = new DegreesParser("N0.0001;E0.0001");
assertEquals(0.0001, parser.latitude, delta);
assertEquals(0.0001, parser.longitude, delta);
parser = new DegreesParser("S0.0001;W0.0001");
assertEquals(-0.0001, parser.latitude, delta);
assertEquals(-0.0001, parser.longitude, delta);
parser = new DegreesParser("N0.000001;E0.000001");
assertEquals(0.000001, parser.latitude, delta);
assertEquals(0.000001, parser.longitude, delta);
parser = new DegreesParser("S0.000001;W0.000001");
assertEquals(-0.000001, parser.latitude, delta);
assertEquals(-0.000001, parser.longitude, delta);
parser = new DegreesParser("N0\u00B00'1;E0\u00B00'1");
assertEquals(1/3600d, parser.latitude, delta);
assertEquals(1/3600d, parser.longitude, delta);
parser = new DegreesParser("S0\u00B00'1;W0\u00B00'1");
assertEquals(-1/3600d, parser.latitude, delta);
assertEquals(-1/3600d, parser.longitude, delta);
}
/**
* Tests inputs that are close to latitude 90/-90 degrees and longitude 180/-180 degrees.
*/
@Test
public void testNearBoundary() {
parser = new DegreesParser("N89.9999;E179.9999");
assertEquals(89.9999, parser.latitude, delta);
assertEquals(179.9999, parser.longitude, delta);
parser = new DegreesParser("S89.9999;W179.9999");
assertEquals(-89.9999, parser.latitude, delta);
assertEquals(-179.9999, parser.longitude, delta);
parser = new DegreesParser("N89.999999;E179.999999");
assertEquals(89.999999, parser.latitude, delta);
assertEquals(179.999999, parser.longitude, delta);
parser = new DegreesParser("S89.999999;W179.999999");
assertEquals(-89.999999, parser.latitude, delta);
assertEquals(-179.999999, parser.longitude, delta);
parser = new DegreesParser("N89\u00B059'59;E179\u00B059'59");
assertEquals(89+59/60d+59/3600d, parser.latitude, delta);
assertEquals(179+59/60d+59/3600d, parser.longitude, delta);
parser = new DegreesParser("S89\u00B059'59;W179\u00B059'59");
assertEquals(-(89+59/60d+59/3600d), parser.latitude, delta);
assertEquals(-(179+59/60d+59/3600d), parser.longitude, delta);
}
/**
* Tests inputs that are on latitude 90/-90 degrees and longitude 180/-180 degrees.
*/
@Test
public void testOnBoundary() {
parser = new DegreesParser("N90;E180");
assertEquals(90d, parser.latitude, delta);
assertEquals(180d, parser.longitude, delta);
parser = new DegreesParser("S90;W180");
assertEquals(-90d, parser.latitude, delta);
assertEquals(-180d, parser.longitude, delta);
parser = new DegreesParser("N90\u00B00'0;E180\u00B00'0");
assertEquals(90d, parser.latitude, delta);
assertEquals(180d, parser.longitude, delta);
parser = new DegreesParser("S90\u00B00'0;W180\u00B00'0");
assertEquals(-90d, parser.latitude, delta);
assertEquals(-180d, parser.longitude, delta);
}
/**
* Tests inputs that are above latitude 90/-90 degrees and longitude 180/-180 degrees.
*/
@Test
public void testAboveBoundary() {
String message = "";
try {
parser = new DegreesParser("N90.0001;E0");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-90,+90]: 90.0001", message);
try {
parser = new DegreesParser("S90.0001;E0");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-90,+90]: -90.0001", message);
try {
parser = new DegreesParser("N0;E180.0001");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-180,+180]: 180.0001", message);
try {
parser = new DegreesParser("N0;W180.0001");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-180,+180]: -180.0001", message);
try {
parser = new DegreesParser("N90.000001;E0");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-90,+90]: 90.000001", message);
try {
parser = new DegreesParser("S90.000001;E0");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-90,+90]: -90.000001", message);
try {
parser = new DegreesParser("N0;E180.000001");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-180,+180]: 180.000001", message);
try {
parser = new DegreesParser("N0;W180.000001");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("out of range [-180,+180]: -180.000001", message);
}
/**
* Tests various inputs that contain syntax errors.
*/
@Test
public void testInputErrors() {
String message = "";
try {
parser = new DegreesParser("N90;S90");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("found latitude (N or S) twice", message);
try {
parser = new DegreesParser("E120;W120");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("found longitude (E or W) twice", message);
try {
parser = new DegreesParser("N90;90");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("end of field without any compass direction seen", message);
try {
parser = new DegreesParser("N90;E");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("end of field without any number seen", message);
try {
parser = new DegreesParser(";");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("end of field without any compass direction seen", message);
try {
parser = new DegreesParser("25;60");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("end of field without any compass direction seen", message);
try {
parser = new DegreesParser("NW25;SW60");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("already set direction once, cannot add direction: W", message);
try {
parser = new DegreesParser("N16.25\u00B0;W60");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("cannot have fractional degrees before degrees sign", message);
try {
parser = new DegreesParser("N16\u00B022.40';W60");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("cannot have fractional minutes before minutes sign", message);
try {
parser = new DegreesParser("");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("end of field without any compass direction seen", message);
try {
parser = new DegreesParser("Yahoo!");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("invalid character: Y", message);
try {
parser = new DegreesParser("N63O025.105;E010O25.982");
} catch (IllegalArgumentException e) {
message = e.getMessage();
}
assertEquals("invalid character: O", message);
}
}
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