Checkout test

Author: cardil

pkg/git/checkout_test.go

@@ -0,0 +1,76 @@
+package git_test
+
+import (
+	"context"
+	"slices"
+	"testing"
+
+	gitv5 "github.com/go-git/go-git/v5"
+	gitv5config "github.com/go-git/go-git/v5/config"
+	"github.com/go-git/go-git/v5/plumbing"
+	"github.com/openshift-knative/deviate/pkg/config"
+	configgit "github.com/openshift-knative/deviate/pkg/config/git"
+	"github.com/openshift-knative/deviate/pkg/files"
+	"github.com/openshift-knative/deviate/pkg/git"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCheckout_OntoWorkspace(t *testing.T) {
+	projectPath := t.TempDir()
+	remote := configgit.Remote{
+		Name: "origin",
+		URL:  "https://github.com/cardil/ghet",
+	}
+	mainBranch := "main"
+	gr, err := gitv5.PlainClone(projectPath, false, &gitv5.CloneOptions{
+		URL:           remote.URL,
+		RemoteName:    "origin",
+		Depth:         1,
+		SingleBranch:  true,
+		ReferenceName: plumbing.NewBranchReferenceName(mainBranch),
+	})
+	require.NoError(t, err)
+	wt, gerr := gr.Worktree()
+	require.NoError(t, gerr)
+	initCommit := "9ab17a360b240c506cf98dfa83997563aa6d9a28"
+	require.NoError(t, gr.Fetch(&gitv5.FetchOptions{
+		RemoteName: "origin",
+		RefSpecs: []gitv5config.RefSpec{
+			gitv5config.RefSpec(initCommit + ":refs/heads/target"),
+		},
+		Depth: 1,
+	}))
+	require.NoError(t, wt.Checkout(&gitv5.CheckoutOptions{
+		Branch: plumbing.NewBranchReferenceName("target"),
+	}))
+	repo := &git.Repository{
+		Context: context.TODO(),
+		Project: config.Project{
+			Path: projectPath,
+		},
+		Repository: gr,
+	}
+	filters := files.Filters{
+		Include: []string{
+			"**.go",
+		},
+		Exclude: []string{
+			"**internal**",
+			"**pkg**",
+			"**Magefile**",
+			"**_test.go",
+		},
+	}
+	err = repo.Checkout(remote, mainBranch).OntoWorkspace(filters)
+	require.NoError(t, err)
+
+	st, serr := wt.Status()
+	require.NoError(t, serr)
+	got := make([]string, 0, len(st))
+	for f := range st {
+		got = append(got, f)
+	}
+	slices.Sort(got)
+	assert.Equal(t, []string{"build/mage.go", "cmd/ght/main.go"}, got)
+}