Added null tests to class constructors and getters.

NikitaEdin · Nov 19, 2024 · a47a654 · a47a654
1 parent df6c158
commit a47a654
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Showing 3 changed files with 215 additions and 1 deletion.
diff --git a/src/test/java/com/napier/sem/CityTest.java b/src/test/java/com/napier/sem/CityTest.java
@@ -16,6 +16,7 @@
 class CityTest {
     // Initialising City object and variables that will be used to create City object.
     static private City city;
+    static private City cityNull;
     static private int id = 64;
     static private String name = "Dubai";
     static private String countryCode = "ARE";
@@ -28,6 +29,7 @@ class CityTest {
     @BeforeAll
     static void setUpBeforeClass(){
         city = new City(id, name, countryCode, district, population);
+        cityNull = new City(0, null, null, null, 0);
     }
 
     /**
@@ -42,11 +44,21 @@ void testCityConstructor() {
         assertEquals(population, city.Population);
     }
 
+    /**
+     * Tests the City class constructor with null values.
+     */
+    @Test
+    void testCityConstructorNull() {
+        assertNull(cityNull.Name);
+        assertNull(cityNull.CountryCode);
+        assertNull(cityNull.District);
+    }
+
     /**
      * Tests the getID method.
      */
     @Test
-    void testGetId() {
+    void testGetID() {
         assertEquals(id, city.getID());
     }
 
@@ -58,6 +70,14 @@ void testGetName() {
         assertEquals(name, city.getName());
     }
 
+    /**
+     * Tests the getName method with a null value.
+     */
+    @Test
+    void testGetNameNull(){
+        assertNull(cityNull.getName());
+    }
+
     /**
      * Tests the getCountryCode method.
      */
@@ -66,6 +86,14 @@ void testGetCountryCode() {
         assertEquals(countryCode, city.getCountryCode());
     }
 
+    /**
+     * Tests the getCountryCode method with a null value.
+     */
+    @Test
+    void testGetCountryCodeNull(){
+        assertNull(cityNull.getCountryCode());
+    }
+
     /**
      * Tests the getDistrict method.
      */
@@ -74,6 +102,14 @@ void testGetDistrict() {
         assertEquals(district, city.getDistrict());
     }
 
+    /**
+     * Tests the getDistrict method with a null value.
+     */
+    @Test
+    void testGetDistrictNull(){
+        assertNull(cityNull.getDistrict());
+    }
+
     /**
      * Tests the getPopulation method.
      */

diff --git a/src/test/java/com/napier/sem/CountryLanguageTest.java b/src/test/java/com/napier/sem/CountryLanguageTest.java
@@ -16,6 +16,7 @@
 class CountryLanguageTest {
     // Initialising CountryLanguage object and variables that will be used to create CountryLanguage object.
     static private CountryLanguage cl;
+    static private CountryLanguage clNull;
     static private String countryCode = "ALB";
     static private String language = "Macedonian";
     static private String isOfficial = "F";
@@ -27,6 +28,7 @@ class CountryLanguageTest {
     @BeforeAll
     static void setUpBeforeClass(){
         cl = new CountryLanguage(countryCode, language, isOfficial, percentage);
+        clNull = new CountryLanguage(null, null, null, 0);
     }
 
     /**
@@ -40,6 +42,16 @@ void testCountryLanguageConstructor() {
         assertEquals(percentage, cl.Percentage);
     }
 
+    /**
+     * Tests the CountryLanguage constructor with null values.
+     */
+    @Test
+    void testCountryLanguageConstructorNull() {
+        assertNull(clNull.CountryCode);
+        assertNull(clNull.Language);
+        assertNull(clNull.IsOfficial);
+    }
+
     /**
      * Tests the getCountryCode method.
      */
@@ -48,6 +60,14 @@ void testGetCountryCode() {
         assertEquals(countryCode, cl.getCountryCode());
     }
 
+    /**
+     * Tests the getCountryCode method with a null value.
+     */
+    @Test
+    void testGetCountryCodeNull() {
+        assertNull(clNull.getCountryCode());
+    }
+
     /**
      * Tests the getLanguage method.
      */
@@ -56,6 +76,14 @@ void testGetLanguage() {
         assertEquals(language, cl.getLanguage());
     }
 
+    /**
+     * Tests the getLanguage method with a null value.
+     */
+    @Test
+    void testGetLanguageNull() {
+        assertNull(clNull.getLanguage());
+    }
+
     /**
      * Tests the getIsOfficial method.
      */
@@ -64,6 +92,14 @@ void testGetIsOfficial() {
         assertEquals(isOfficial, cl.getIsOfficial());
     }
 
+    /**
+     * Tests the getIsOfficial method with a null value.
+     */
+    @Test
+    void testGetIsOfficialNull() {
+        assertNull(clNull.getIsOfficial());
+    }
+
     /**
      * Tests the getPercentage method.
      */