Improved test coverage in AbstractArray, did a few minor fixes to pre…

…vent rare but unexpected NPE's, deprecated the typed query helpers in AbstractArray as they have barely any use-case and unnecessarily bloat the code

src/main/java/org/javawebstack/abstractdata/AbstractArray.java

@@ -30,76 +30,109 @@ public AbstractObject object(boolean strict) throws AbstractCoercingException {
         return object;
     }
 
+    @Deprecated
     public AbstractObject object(String key) throws AbstractCoercingException {
-        return query(key).object();
+        AbstractElement e = query(key);
+        return e != null ? e.object() : null;
     }
 
+    @Deprecated
     public AbstractArray array(String key) throws AbstractCoercingException {
-        return query(key).array();
+        AbstractElement e = query(key);
+        return e != null ? e.array() : null;
     }
 
+    @Deprecated
     public AbstractPrimitive primitive(String key) throws AbstractCoercingException {
-        return query(key).primitive();
+        AbstractElement e = query(key);
+        return e != null ? e.primitive() : null;
     }
 
+    @Deprecated
     public String string(String key) throws AbstractCoercingException {
-        return query(key).string();
+        AbstractElement e = query(key);
+        return e != null ? e.string() : null;
     }
 
+    @Deprecated
     public Boolean bool(String key) throws AbstractCoercingException {
-        return query(key).bool();
+        AbstractElement e = query(key);
+        return e != null ? e.bool() : null;
     }
 
+    @Deprecated
     public Number number(String key) throws AbstractCoercingException {
-        return query(key).number();
+        AbstractElement e = query(key);
+        return e != null ? e.number() : null;
     }
 
+    @Deprecated
     public AbstractObject object(String key, AbstractObject orElse) throws AbstractCoercingException {
-        return query(key, orElse).object();
+        AbstractElement e = query(key, orElse);
+        return e != null ? e.object() : null;
     }
 
+    @Deprecated
     public AbstractArray array(String key, AbstractArray orElse) throws AbstractCoercingException {
-        return query(key, orElse).array();
+        AbstractElement e = query(key, orElse);
+        return e != null ? e.array() : null;
     }
 
+    @Deprecated
     public AbstractPrimitive primitive(String key, AbstractPrimitive orElse) throws AbstractCoercingException {
-        return query(key, orElse).primitive();
+        AbstractElement e = query(key, orElse);
+        return e != null ? e.primitive() : null;
     }
 
+    @Deprecated
     public String string(String key, String orElse) throws AbstractCoercingException {
-        return query(key, new AbstractPrimitive(orElse)).string();
+        AbstractPrimitive orElsePrimitive = orElse != null ? new AbstractPrimitive(orElse) : null;
+        AbstractElement e = primitive(key, orElsePrimitive);
+        return e != null ? e.string() : null;
     }
 
+    @Deprecated
     public Boolean bool(String key, Boolean orElse) throws AbstractCoercingException {
-        return query(key, new AbstractPrimitive(orElse)).bool();
+        AbstractPrimitive orElsePrimitive = orElse != null ? new AbstractPrimitive(orElse) : null;
+        AbstractElement e = primitive(key, orElsePrimitive);
+        return e != null ? e.bool() : null;
     }
 
+    @Deprecated
     public Number number(String key, Number orElse) throws AbstractCoercingException {
-        return query(key, new AbstractPrimitive(orElse)).number();
+        AbstractPrimitive orElsePrimitive = orElse != null ? new AbstractPrimitive(orElse) : null;
+        AbstractElement e = primitive(key, orElsePrimitive);
+        return e != null ? e.number() : null;
     }
 
     public AbstractObject object(int index) throws AbstractCoercingException {
-        return get(index).object();
+        AbstractElement e = get(index);
+        return e != null ? e.object() : null;
     }
 
     public AbstractArray array(int index) throws AbstractCoercingException {
-        return get(index).array();
+        AbstractElement e = get(index);
+        return e != null ? e.array() : null;
     }
 
     public AbstractPrimitive primitive(int index) throws AbstractCoercingException {
-        return get(index).primitive();
+        AbstractElement e = get(index);
+        return e != null ? e.primitive() : null;
     }
 
     public String string(int index) throws AbstractCoercingException {
-        return get(index).string();
+        AbstractElement e = get(index);
+        return e != null ? e.string() : null;
     }
 
     public Boolean bool(int index) throws AbstractCoercingException {
-        return get(index).bool();
+        AbstractElement e = get(index);
+        return e != null ? e.bool() : null;
     }
 
     public Number number(int index) throws AbstractCoercingException {
-        return get(index).number();
+        AbstractElement e = get(index);
+        return e != null ? e.number() : null;
     }
 
     public AbstractObject object(int index, AbstractObject orElse) throws AbstractCoercingException {
@@ -214,6 +247,8 @@ public AbstractElement[] toArray() {
     }
 
     public AbstractElement get(int i) {
+        if(i >= elements.size())
+            return null;
         return elements.get(i);
     }
 
@@ -223,6 +258,8 @@ public AbstractElement get(int index, AbstractElement orElse) {
     }
 
     public AbstractElement query(String query) {
+        if(query == null)
+            throw new IllegalArgumentException("query can not be null");
         String[] q = query.split("\\.", 2);
         try {
             int index = Integer.parseInt(q[0]);
@@ -370,6 +407,8 @@ public boolean equals(Object obj) {
     }
 
     public AbstractArray addAll(AbstractArray array) {
+        if(array == null)
+            throw new IllegalArgumentException("array may not be null");
         elements.addAll(array.elements);
         return this;
     }

src/test/java/org/javawebstack/abstractdata/AbstractArrayTest.java

@@ -1,11 +1,200 @@
 package org.javawebstack.abstractdata;
 
+import org.javawebstack.abstractdata.exception.AbstractCoercingException;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.*;
 
 class AbstractArrayTest {
 
+    @Test
+    void testIsArrayReturnsTrue() {
+        assertTrue(new AbstractArray().isArray());
+    }
+
+    @Test
+    void testObjectThrowsInStrictMode() {
+        assertThrows(AbstractCoercingException.class, () -> new AbstractArray().object(true));
+    }
+
+    @Test
+    void testObjectCoercingWhenNotInStrictMode() {
+        AbstractArray a = new AbstractArray();
+        a.add(0);
+        a.add("1");
+        AbstractObject o = assertDoesNotThrow(() -> a.object(false));
+        assertTrue(o.hasNumber("0"));
+        assertTrue(o.hasString("1"));
+    }
+
+    @Test
+    void testObjectQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add(new AbstractObject()).object("1"));
+    }
+
+    @Test
+    void testObjectQueryReturnsValueWhenKeyIsFound() {
+        assertNotNull(new AbstractArray().add(new AbstractObject()).object("0"));
+    }
+
+    @Test
+    void testArrayQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add(new AbstractArray()).array("1"));
+    }
+
+    @Test
+    void testArrayQueryReturnsValueWhenKeyIsFound() {
+        assertNotNull(new AbstractArray().add(new AbstractArray()).array("0"));
+    }
+
+    @Test
+    void testPrimitiveQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add(0).primitive("1"));
+    }
+
+    @Test
+    void testPrimitiveQueryReturnsValueWhenKeyIsFound() {
+        assertNotNull(new AbstractArray().add(0).primitive("0"));
+    }
+
+    @Test
+    void testStringQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add("abc").string("1"));
+    }
+
+    @Test
+    void testStringQueryReturnsValueWhenKeyIsFound() {
+        assertEquals("abc", new AbstractArray().add("abc").string("0"));
+    }
+
+    @Test
+    void testNumberQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add(123).number("1"));
+    }
+
+    @Test
+    void testNumberQueryReturnsValueWhenKeyIsFound() {
+        assertEquals(123, new AbstractArray().add(123).number("0"));
+    }
+
+    @Test
+    void testBoolQueryReturnsNullWhenKeyIsNotFound() {
+        assertNull(new AbstractArray().add(true).bool("1"));
+    }
+
+    @Test
+    void testBoolQueryReturnsValueWhenKeyIsFound() {
+        assertEquals(true, new AbstractArray().add(true).bool("0"));
+    }
+
+    @Test
+    void testQueryOrElseReturnsValueIfFoundAndNonNull() {
+        AbstractElement expected = new AbstractPrimitive(123);
+        AbstractElement orElse = new AbstractPrimitive("456");
+        AbstractArray array = new AbstractArray().add(expected);
+        assertEquals(expected, array.query("0", orElse));
+    }
+
+    @Test
+    void testQueryOrElseReturnsOrElseIfFoundAndNull() {
+        AbstractElement orElse = new AbstractPrimitive("456");
+        AbstractArray array = new AbstractArray().addNull();
+        assertEquals(orElse, array.query("0", orElse));
+    }
+
+    @Test
+    void testQueryOrElseReturnsOrElseIfNotFound() {
+        AbstractElement unexpected = new AbstractPrimitive(123);
+        AbstractElement orElse = new AbstractPrimitive("456");
+        AbstractArray array = new AbstractArray().add(unexpected);
+        assertEquals(orElse, array.query("1", orElse));
+    }
+
+    @Test
+    void testObjectQueryOrElseReturnsOrElseIfNotFound() {
+        AbstractObject orElse = new AbstractObject().set("a", 1);
+        assertSame(orElse, new AbstractArray().object("0", orElse));
+    }
+
+    @Test
+    void testArrayQueryOrElseReturnsOrElseIfNotFound() {
+        AbstractArray orElse = new AbstractArray().add(123);
+        assertSame(orElse, new AbstractArray().array("0", orElse));
+    }
+
+    @Test
+    void testPrimitiveQueryOrElseReturnsOrElseIfNotFound() {
+        AbstractPrimitive orElse = new AbstractPrimitive(123);
+        assertSame(orElse, new AbstractArray().primitive("0", orElse));
+    }
+
+    @Test
+    void testStringQueryOrElseReturnsOrElseIfNotFound() {
+        String orElse = "abc";
+        assertEquals(orElse, new AbstractArray().string("0", orElse));
+    }
+
+    @Test
+    void testNumberQueryOrElseReturnsOrElseIfNotFound() {
+        Number orElse = 123;
+        assertEquals(orElse, new AbstractArray().number("0", orElse));
+    }
+
+    @Test
+    void testBoolQueryOrElseReturnsOrElseIfNotFound() {
+        Boolean orElse = true;
+        assertEquals(orElse, new AbstractArray().bool("0", orElse));
+    }
+
+    @Test
+    void testQueryThrowsOnNull() {
+        assertThrows(IllegalArgumentException.class, () -> new AbstractArray().query(null));
+    }
+
+    @Test
+    void testQueryWithNonIntPathReturnsNull() {
+        assertNull(new AbstractArray().add(1).query("abc"));
+    }
+
+    @Test
+    void testQueryWithNonExistingIndexReturnsNull() {
+        assertNull(new AbstractArray().add(0).query("1"));
+    }
+
+    @Test
+    void testQueryWithOnlyOneSegmentReturnsValue() {
+        assertNotNull(new AbstractArray().add(1).query("0"));
+    }
+
+    @Test
+    void testClearClearsTheArrayAndReturnsThis() {
+        AbstractArray array = new AbstractArray().add(1).add(2).add(3);
+        assertEquals(3, array.size());
+        assertSame(array, array.clear());
+        assertEquals(0, array.size());
+    }
+
+    @Test
+    void testQueryWithObjectValueQueriesObject() {
+        AbstractArray array = new AbstractArray();
+        array.add(new AbstractObject().set("a", 1));
+        assertEquals(1, array.query("0.a").number().intValue());
+    }
+
+    @Test
+    void testQueryWithArrayValueQueriesArray() {
+        AbstractArray array = new AbstractArray();
+        array.add(new AbstractArray().add(1));
+        assertEquals(1, array.query("0.0").number().intValue());
+    }
+
+    @Test
+    void testQueryWithPrimitiveValueReturnsNull() {
+        AbstractArray array = new AbstractArray();
+        array.add("abc");
+        assertNull(array.query("0.abc"));
+    }
+
     @Test
     void testEqualsNormal() {
         AbstractArray first = new AbstractArray();