How to use

installModules

method

in

toothpick.ScopeImpl

@Override
public void installModules(Module... modules) {
 installModules(false, modules);
}

@Override
public synchronized void installTestModules(Module... modules) {
 if (hasTestModules) {
  throw new IllegalStateException("TestModules can only be installed once per scope.");
 }
 installModules(true, modules);
 hasTestModules = true;
}

@Test(expected = IllegalStateException.class)
public void installModules_shouldFailWhenModuleHasIssues() {
 //GIVEN
 ScopeImpl scope = new ScopeImpl("");
 //WHEN
 scope.installModules(new BuggyModule());
 //THEN
 fail();
}

@Test(expected = IllegalStateException.class)
public void installModules_shouldThrowAnException_whenModuleHasANullBinding() {
 //GIVEN
 ScopeImpl scope = new ScopeImpl("");
 //WHEN
 scope.installModules(new NullBindingModule());
 //THEN
 fail("Should throw an exception.");
}

@Test
public void installOverrideModules_shouldNotInstallOverrideBindings_whenCalledWithoutTestModules() {
 //GIVEN
 ScopeImpl scope = new ScopeImpl("");
 scope.installTestModules();
 scope.installModules(new ProdModule());
 //WHEN
 Foo instance = scope.getInstance(Foo.class);
 //THEN
 assertThat(instance, notNullValue());
}

@Override
public void installModules(Module... modules) {
 installModules(false, modules);
}

@Override
public synchronized void installTestModules(Module... modules) {
 if (hasTestModules) {
  throw new IllegalStateException("TestModules can only be installed once per scope.");
 }
 installModules(true, modules);
 hasTestModules = true;
}

@Override
public synchronized void installTestModules(Module... modules) {
 if (hasTestModules) {
  throw new IllegalStateException("TestModules can only be installed once per scope.");
 }
 hasTestModules = false;
 installModules(modules);
 hasTestModules = true;
}

@Test
public void testToString() {
 //GIVEN
 ScopeImpl scope = new ScopeImpl("root");
 scope.installModules(new TestModule1());
 ScopeImpl childScope = new ScopeImpl("child");
 scope.addChild(childScope);
 //WHEN
 childScope.getInstance(Bar.class);
 String dump = scope.toString();
 //THEN
 Pattern expected = Pattern.compile("root:\\d+.*"
   + "Providers: \\[toothpick.Scope,toothpick.data.Foo\\].*"
   + "\\\\---child:\\d+.*"
   + "Providers:.*\\[toothpick.Scope\\].*"
   + "Unbound providers: \\[toothpick.data.Bar\\].*", Pattern.DOTALL);
 assertThat(dump, MatchesPattern.matchesPattern(expected));
}

@Test
public void installOverrideModules_shouldNotOverrideOtherBindings() {
 //GIVEN
 Foo testFoo = new Foo();
 ScopeImpl scope = new ScopeImpl("");
 scope.installTestModules(new TestModule(testFoo));
 scope.installModules(new ProdModule2());
 //WHEN
 Foo fooInstance = scope.getInstance(Foo.class);
 Bar barInstance = scope.getInstance(Bar.class);
 //THEN
 assertThat(fooInstance, sameInstance(testFoo));
 assertThat(barInstance, notNullValue());
}

@Test
public void installTestModules_shouldOverrideBindings_whenInstalledAfterProductionModules() {
 //GIVEN
 Foo testFoo = new Foo();
 ScopeImpl scope = new ScopeImpl("");
 scope.installModules(new ProdModule());
 scope.installTestModules(new TestModule(testFoo));
 //WHEN
 Foo instance = scope.getInstance(Foo.class);
 //THEN
 assertThat(instance, sameInstance(testFoo));
}

@Test
public void installOverrideModules_shouldInstallOverrideBindings_whenCalledOnce() {
 //GIVEN
 Foo testFoo = new Foo();
 ScopeImpl scope = new ScopeImpl("");
 scope.installTestModules(new TestModule(testFoo));
 scope.installModules(new ProdModule());
 //WHEN
 Foo instance = scope.getInstance(Foo.class);
 //THEN
 assertThat(instance, sameInstance(testFoo));
}