docs: update dependency injection

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AdvancedSorceressTest.java

@@ -58,7 +58,7 @@ class AdvancedSorceressTest {
    * her through the setter's parameter
    */
   @Test
-  void testSmokeEveryThing() throws Exception {
+  void testSmokeEveryThing() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AdvancedWizardTest.java

@@ -57,7 +57,7 @@ class AdvancedWizardTest {
    * through the constructor parameter
    */
   @Test
-  void testSmokeEveryThing() throws Exception {
+  void testSmokeEveryThing() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),

dependency-injection/src/test/java/com/iluwatar/dependency/injection/AppTest.java

@@ -35,7 +35,6 @@ class AppTest {
 
   /**
    * Issue: Add at least one assertion to this test case.
-   *
    * Solution: Inserted assertion to check whether the execution of the main method in {@link App#main(String[])}
    * throws an exception.
    */

dependency-injection/src/test/java/com/iluwatar/dependency/injection/GuiceWizardTest.java

@@ -58,7 +58,7 @@ class GuiceWizardTest {
    * through the constructor parameter
    */
   @Test
-  void testSmokeEveryThingThroughConstructor() throws Exception {
+  void testSmokeEveryThingThroughConstructor() {
 
     List<Tobacco> tobaccos = List.of(
         new OldTobyTobacco(),
@@ -83,7 +83,7 @@ class GuiceWizardTest {
    * through the Guice google inject framework
    */
   @Test
-  void testSmokeEveryThingThroughInjectionFramework() throws Exception {
+  void testSmokeEveryThingThroughInjectionFramework() {
 
     List<Class<? extends Tobacco>> tobaccos = List.of(
         OldTobyTobacco.class,