BDD iteration RedHatOfficial#7

testing/bdd_iteration_7/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_7/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 %d", testAccumulator.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_7/features/accumulator.feature

@@ -0,0 +1,17 @@
+Feature: simple accumulator checks
+  An accumulator must be able to add a number to its content
+
+  Scenario Outline: Accumulate multiple values
+    Given I have an accumulator with 0
+    When I add <amount> to accumulator
+    Then the accumulated result should be <accumulated>
+    When I add <amount2> to accumulator
+    Then the accumulated result should be <accumulated2>
+
+  Examples:
+   |amount|accumulated|amount2|accumulated2|
+   | 0    | 0         | 0     | 0          |
+   | 1    | 1         | 1     | 2          |
+   | 2    | 2         | 2     | 4          |
+   | 10   | 10        | 10    | 20         |
+