BDD iteration RedHatOfficial#4

testing/bdd_iteration_4/accumulator.go

@@ -0,0 +1,9 @@
+package accumulator
+
+type acc struct {
+	value int
+}
+
+func (a *acc) accumulate(x int) {
+	a.value += x
+}

testing/bdd_iteration_4/accumulator_test.go

@@ -0,0 +1,35 @@
+package accumulator
+
+import (
+	"fmt"
+	"github.com/DATA-DOG/godog"
+)
+
+var testAccumulator *acc
+
+func iHaveAnAccumulatorWith(initialValue int) error {
+	testAccumulator.value = initialValue
+	return nil
+}
+
+func iAddToAccumulator(value int) error {
+	testAccumulator.accumulate(value)
+	return nil
+}
+
+func theAccumulatedResultShouldBe(expected int) error {
+	if testAccumulator.value == expected {
+		return nil
+	}
+	return fmt.Errorf("Incorrect accumulator value")
+}
+
+func FeatureContext(s *godog.Suite) {
+	s.Step(`^I have an accumulator with (-?\d+)$`, iHaveAnAccumulatorWith)
+	s.Step(`^I add (-?\d+) to accumulator$`, iAddToAccumulator)
+	s.Step(`^the accumulated result should be (-?\d+)$`, theAccumulatedResultShouldBe)
+
+	s.BeforeScenario(func(interface{}) {
+		testAccumulator = &acc{}
+	})
+}

testing/bdd_iteration_4/features/accumulator.feature

@@ -0,0 +1,12 @@
+Feature: simple accumulator checks
+  An accumulator must be able to add a number to its content
+
+  Scenario: Accumulate positive integer
+    Given I have an accumulator with 0
+    When I add 2 to accumulator
+    Then the accumulated result should be 2
+
+  Scenario: Accumulate negative integer
+    Given I have an accumulator with 0
+    When I add -2 to accumulator
+    Then the accumulated result should be -2

testing/bdd_iteration_4/hint

@@ -0,0 +1,14 @@
+You can implement step definitions for undefined steps with these snippets:
+
+func iAddToAccumulator(arg1 int) error {
+        return godog.ErrPending
+}
+
+func theAccumulatedResultShouldBe(arg1 int) error {
+        return godog.ErrPending
+}
+
+func FeatureContext(s *godog.Suite) {
+        s.Step(`^I add -(\d+) to accumulator$`, iAddToAccumulator)
+        s.Step(`^the accumulated result should be -(\d+)$`, theAccumulatedResultShouldBe)
+}