add recent subcommand to ach contest subcommand (#83)

Author: yuchiki

docs/cmd/ach_contest.md

@@ -7,6 +7,9 @@ cd work
 # show incoming contests
 ach contest incoming
 
+# show recent contests
+ach contest recent
+
 # create a contest working directory
 ach contest create --default-template contestFoo
 

docs/cmd/ach_contest_recent.md

@@ -1,5 +1,5 @@
 #!/bin/bash
 set -eux
 
-imageId=$(docker build -q .)
-docker run "$imageId"
+docker build -t ach_integration_test:latest .
+docker run ach_integration_test:latest

integration/integration.sh

@@ -4,6 +4,7 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/yuchiki/atcoderHelper/internal/cmd/ach/contest/create"
 	"github.com/yuchiki/atcoderHelper/internal/cmd/ach/contest/incoming"
+	"github.com/yuchiki/atcoderHelper/internal/cmd/ach/contest/recent"
 	"github.com/yuchiki/atcoderHelper/internal/repository"
 )
 
@@ -22,4 +23,5 @@ func NewContestCmd() *cobra.Command {
 func registerSubcommands(cmd *cobra.Command) {
 	cmd.AddCommand(create.NewContestCreateCmd())
 	cmd.AddCommand(incoming.NewContestIncomingCmd(repository.FetchIncoming))
+	cmd.AddCommand(recent.NewContestRecentCmd(repository.FetchRecent))
 }

integration_test.sh

@@ -9,8 +9,7 @@ import (
 func TestAch_Execute(t *testing.T) {
 	testutil.TestCaseTemplates{
 		testutil.HasName("contest"),
-		testutil.HasSubcommands("create"),
-		testutil.HasSubcommands("incoming"),
+		testutil.HasSubcommands("create", "incoming", "recent"),
 	}.
 		Build(NewContestCmd).
 		Run(t)

internal/cmd/ach/contest/contest.go

@@ -112,7 +112,7 @@ func initializeTaskDirectory(absTemplateDir, contestName, taskName string) error
 
 	sampleDirName := path.Join(taskDirName, "sampleCases")
 
-	err = createSampleCases(sampleDirName, 5)
+	err = createSampleCases(sampleDirName, 5) //nolint:gomnd
 	if err != nil {
 		return err
 	}

internal/cmd/ach/contest/contest_test.go

@@ -0,0 +1,29 @@
+package recent
+
+import (
+	"github.com/spf13/cobra"
+	"github.com/yuchiki/atcoderHelper/internal/repository"
+)
+
+func NewContestRecentCmd(fetcher func() ([]repository.ContestInfo, error)) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "recent",
+		Short: "show recent contests",
+		Long:  "show recent contests.",
+		Args:  cobra.ExactArgs(0),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			contests, err := fetcher()
+			if err != nil {
+				return err
+			}
+
+			for _, contest := range contests {
+				cmd.Printf("%v: %v\n", contest.ID, contest.Name)
+			}
+
+			return nil
+		},
+	}
+
+	return cmd
+}

internal/cmd/ach/contest/create/create.go

@@ -0,0 +1,43 @@
+package recent
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/spf13/cobra"
+	"github.com/yuchiki/atcoderHelper/internal/repository"
+	"github.com/yuchiki/atcoderHelper/internal/testutil"
+)
+
+var errUnknownInRepositoryLayer = errors.New("an error thrown in fetcher function")
+
+func TestRecent_Execute(t *testing.T) {
+	generateBuilder := func(infos []repository.ContestInfo, err error) func() *cobra.Command {
+		return func() *cobra.Command {
+			return NewContestRecentCmd(func() ([]repository.ContestInfo, error) {
+				return infos, err
+			})
+		}
+	}
+
+	testutil.TestCaseTemplates{
+		testutil.HasName("recent"),
+	}.Build(generateBuilder(nil, nil)).Run(t)
+
+	testutil.TestCases{
+		{
+			Name: "OK",
+			CmdBuilder: generateBuilder([]repository.ContestInfo{
+				{ID: "id1", Name: "name1"},
+				{ID: "id2", Name: "name2"},
+				{ID: "id3", Name: "name3"},
+			}, nil),
+			OutputCheck: testutil.OutputShouldBe("id1: name1\nid2: name2\nid3: name3\n"),
+		},
+		{
+			Name:       "returns an error when the repository layer fails",
+			CmdBuilder: generateBuilder(nil, errUnknownInRepositoryLayer),
+			ErrorCheck: testutil.AnyError(),
+		},
+	}.Run(t)
+}

internal/cmd/ach/contest/recent/recent.go

@@ -0,0 +1,7 @@
+package repository
+
+const (
+	AtCoderURL   = "https://atcoder.jp"
+	IncomingPath = "/contests"
+	RecentPath   = "/contests"
+)