switched to interfaces (7a1de8fe) · Commits · bsmrgo / wator

cell.go

+15 −1

Original line number	Diff line number	Diff line
		package wator

		type celler interface {
		// Celler is just a simple cell.
		type Celler interface {
		Name() string
		String() string
		}

		// Food is not water, but somthing that can be consumed.
		type Food interface {
		Celler
		Age() int
		SetAge(int)
		}

		// Hunter is something that goes for food.
		type Hunter interface {
		Food
		Ate() int
		SetAte(int)
		}

+14 −1

Original line number	Diff line number	Diff line
		package wator
		package fish

		// Fish is the representation for a fish.
		type Fish struct {
		@@ -6,9 +6,22 @@ type Fish struct {
		}

		const (
		name = "Fish"
		fish = "·" // "f" // "🐟"
		)

		// New creates a new fish with a given age.
		func New(age int) *Fish {
		return &Fish{
		age: age,
		}
		}

		// Name returns the name.
		func (f *Fish) Name() string {
		return name
		}

		// String return the representation.
		func (f *Fish) String() string {
		return fish

0 → 100644

+29 −0

Original line number	Diff line number	Diff line
		package fish

		import "testing"

		func TestFish(t *testing.T) {
		f := New(0)

		if f == nil {
		t.Errorf("failed to create a new fish")
		}

		if fn := f.Name(); fn != name {
		t.Errorf("f.Name() is %q, expected %q", fn, name)
		}

		if fs := f.String(); fs != fish {
		t.Errorf("f.String() = %s, expected %s", fs, fish)
		}

		if fa := f.Age(); fa != 0 {
		t.Errorf("f.Age() = %d, expected 0", fa)
		}

		na := 42
		f.SetAge(na)
		if fa := f.Age(); fa != na {
		t.Errorf("f.Age() = %d, expected %d", fa, na)
		}
		}

+15 −1

Original line number	Diff line number	Diff line
		package wator
		package shark

		// Shark is the representation for a shark.
		type Shark struct {
		@@ -7,9 +7,23 @@ type Shark struct {
		}

		const (
		name = "Shark"
		shark = "O" // "S" // "🦈"
		)

		// New creates a new shark.
		func New(age, ate int) *Shark {
		return &Shark{
		age: age,
		ate: ate,
		}
		}

		// Name ...
		func (s *Shark) Name() string {
		return name
		}

		// String return the representation.
		func (s *Shark) String() string {
		var i string

+9 −5

Original line number	Diff line number	Diff line
		package wator
		package shark

		import "testing"

		func TestShark(t *testing.T) {
		s := &Shark{}
		s := New(0, 0)

		if s == nil {
		t.Errorf("failed to create a new shark")
		}

		if sn := s.Name(); sn != name {
		t.Errorf("s.Name() is %q, expected %q", sn, name)
		}

		for _, tv := range []struct {
		a int
		s string
		@@ -23,21 +27,21 @@ func TestShark(t *testing.T) {
		} {
		s.SetAge(tv.a)
		if si := s.String(); si != tv.s {
		t.Errorf("s.String() = %s, expected %s", si, tv.s)
		t.Errorf("s.String() is %q, expected %q", si, tv.s)
		}
		}

		for _, ta := range []int{0, 42} {
		s.SetAge(ta)
		if a := s.Age(); a != ta {
		t.Errorf("s.Age() = %d, expected %d", a, ta)
		t.Errorf("s.Age() is %d, expected %d", a, ta)
		}
		}

		for _, ta := range []int{0, 42} {
		s.SetAte(ta)
		if a := s.Ate(); a != ta {
		t.Errorf("s.Ate() = %d, expected %d", a, ta)
		t.Errorf("s.Ate() is %d, expected %d", a, ta)
		}
		}
		}