Add unit tests

Author: devlights

Makefile

@@ -51,7 +51,7 @@ build: prepare
 
 .PHONY: test
 test: prepare
-	$(GOTEST) -race -v ./...
+	$(GOTEST) -race -coverprofile /tmp/try-golang-cover $(shell go list ./... | grep -v /examples/ | grep -v /cmd/)
 
 .PHONY: clean
 clean: prepare

builder/builder_test.go

@@ -0,0 +1,25 @@
+package builder_test
+
+import (
+	"testing"
+
+	"github.com/devlights/try-golang/builder"
+)
+
+func TestMappingIsNotZero(t *testing.T) {
+	cases := []struct {
+		name string
+		out  interface{}
+	}{
+		{"sizeIsNotZero", 0},
+	}
+
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			m := builder.BuildMappings()
+			if len(m) == c.out {
+				t.Errorf("[want] not zero\t[got] zero")
+			}
+		})
+	}
+}

mapping/types_test.go

@@ -0,0 +1,40 @@
+package mapping_test
+
+import (
+	"testing"
+
+	"github.com/devlights/try-golang/mapping"
+)
+
+type (
+	onlyOneRegister struct{}
+)
+
+func (me *onlyOneRegister) Regist(m mapping.ExampleMapping) {
+	m["this_is_a_test"] = func() error { return nil }
+}
+
+func TestMapping(t *testing.T) {
+	m := mapping.NewSampleMapping()
+	m.MakeMapping(&onlyOneRegister{})
+
+	_, ok := m["this_is_a_test"]
+	if !ok {
+		t.Errorf("no key.. [want] false\t[got] true")
+	}
+}
+
+func TestAllExampleNames(t *testing.T) {
+	m := mapping.NewSampleMapping()
+	m.MakeMapping(&onlyOneRegister{})
+
+	names := m.AllExampleNames()
+	if len(names) != 1 {
+		t.Errorf("mismatch example count..\t[want] 1\t[got] %d", len(names))
+	}
+
+	name := names[0]
+	if name != "this_is_a_test" {
+		t.Errorf("mismatch example name..\t[want] this_is_a_test\t[got] %s", name)
+	}
+}

runner/exec_test.go

@@ -0,0 +1,26 @@
+package runner_test
+
+import (
+	"testing"
+
+	"github.com/devlights/try-golang/mapping"
+	"github.com/devlights/try-golang/runner"
+)
+
+func TestExec(t *testing.T) {
+	r := new(runner.SilentRegister)
+
+	m := mapping.NewSampleMapping()
+	m.MakeMapping(r)
+
+	a := runner.NewExecArgs("silent", m)
+	e := runner.NewExec(a)
+
+	if err := e.Run(); err != nil {
+		t.Errorf("should not raise error (%s)", err)
+	}
+
+	if !r.Target.Called {
+		t.Errorf("never called the target example")
+	}
+}

runner/export_test.go

@@ -0,0 +1,24 @@
+package runner
+
+import "github.com/devlights/try-golang/mapping"
+
+type (
+	SilentExample struct {
+		Called bool
+	}
+	SilentRegister struct {
+		Target *SilentExample
+	}
+)
+
+func (me *SilentExample) Run() error {
+	me.Called = true
+	return nil
+}
+
+func (me *SilentRegister) Regist(m mapping.ExampleMapping) {
+	e := &SilentExample{false}
+	m["silent"] = e.Run
+
+	me.Target = e
+}

runner/once_test.go

@@ -0,0 +1,26 @@
+package runner_test
+
+import (
+	"testing"
+
+	"github.com/devlights/try-golang/mapping"
+	"github.com/devlights/try-golang/runner"
+)
+
+func TestOnce(t *testing.T) {
+	r := new(runner.SilentRegister)
+
+	m := mapping.NewSampleMapping()
+	m.MakeMapping(r)
+
+	a := runner.NewOnceArgs("silent", m)
+	e := runner.NewOnce(a)
+
+	if err := e.Run(); err != nil {
+		t.Errorf("should not raise error (%s)", err)
+	}
+
+	if !r.Target.Called {
+		t.Errorf("never called the target example")
+	}
+}