Add the invalid tests.

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/HasMethodArgumentsTest.java

@@ -0,0 +1,38 @@
+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Given;
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.annotations.When;
+import space.kklochko.simple_jbdd.test_examples.samples.Calculator;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("Test that has method arguments")
+public class HasMethodArgumentsTest extends Test {
+    Calculator calculator;
+    int a;
+    int b;
+    int result;
+
+    @Given("Set up the calculator in a private method")
+    public void given(int a, int b) {
+        calculator = new Calculator();
+    }
+
+    @Given("Set up the arguments with arguments")
+    public void setupArguments(int a, int b) {
+        this.a = 4;
+        this.b = 2;
+    }
+
+    @When("Invoke the subtract method")
+    public void when() {
+        result = calculator.subtract(a, b);
+    }
+
+    @Then("4-2 must be 2 and return Bool value")
+    public void then() {
+        assert result == 2;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/HasNonVoidMethodTest.java

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+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Given;
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.annotations.When;
+import space.kklochko.simple_jbdd.test_examples.samples.Calculator;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("Test with a method that return boolean")
+public class HasNonVoidMethodTest extends Test {
+    Calculator calculator;
+    int a;
+    int b;
+    int result;
+
+    @Given("Set up the calculator in a private method")
+    public void given() {
+        calculator = new Calculator();
+    }
+
+    @Given("Set up the arguments")
+    public void setupArguments() {
+        this.a = 4;
+        this.b = 2;
+    }
+
+    @When("Invoke the subtract method")
+    public void when() {
+        result = calculator.subtract(a, b);
+    }
+
+    @Then("4-2 must be 2 and return result")
+    public boolean then() {
+        assert result == 2;
+        return result != 2;
+    }
+}
+

src/main/java/space/kklochko/simple_jbdd/test_examples/tests/HasPrivateMethodTest.java

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+package space.kklochko.simple_jbdd.test_examples.tests;
+
+import space.kklochko.simple_jbdd.annotations.Given;
+import space.kklochko.simple_jbdd.annotations.Then;
+import space.kklochko.simple_jbdd.annotations.Title;
+import space.kklochko.simple_jbdd.annotations.When;
+import space.kklochko.simple_jbdd.test_examples.samples.Calculator;
+import space.kklochko.simple_jbdd.tests.Test;
+
+@Title("Test with a private method")
+public class HasPrivateMethodTest extends Test {
+    Calculator calculator;
+    int a;
+    int b;
+    int result;
+
+    @Given("Set up the calculator in a private method")
+    private void given() {
+        calculator = new Calculator();
+    }
+
+    @Given("Set up the arguments")
+    public void setupArguments() {
+        this.a = 4;
+        this.b = 2;
+    }
+
+    @When("Invoke the subtract method")
+    public void when() {
+        result = calculator.subtract(a, b);
+    }
+
+    @Then("4-2 must be 2")
+    public void then() {
+        assert result == 2;
+    }
+}
+