chore: working releasable commits

git_test.go

@@ -0,0 +1,81 @@
+package rp
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/apricote/releaser-pleaser/internal/testutils"
+)
+
+var InitCommit = Commit{
+	Hash:    "fca23c2d67580780d5bbb4f73987624b81926aad",
+	Message: "chore: init",
+}
+
+func TestReleasableCommits(t *testing.T) {
+	tests := []struct {
+		name        string
+		repoFn      testutils.Repo
+		wantCommits []Commit
+		wantTag     *Tag
+		wantErr     bool
+	}{
+		{
+			name:   "Empty Repo",
+			repoFn: testutils.WithTestRepo(),
+			wantCommits: []Commit{
+				InitCommit,
+			},
+			wantTag: nil,
+			wantErr: false,
+		},
+		{
+			name: "Single Commit",
+			repoFn: testutils.WithTestRepo(
+				testutils.WithCommit("feat: foobar"),
+			),
+			wantCommits: []Commit{
+				InitCommit,
+				{
+					Hash:    "ff0815947e8211485d4f97ff8cf5deb49866e228",
+					Message: "feat: foobar",
+				},
+			},
+			wantTag: nil,
+			wantErr: false,
+		},
+		{
+			name: "Single Commit After Tag",
+			repoFn: testutils.WithTestRepo(
+				testutils.WithCommit("feat: foobar", testutils.WithTag("v1.0.0")),
+				testutils.WithCommit("feat: baz"),
+			),
+			wantCommits: []Commit{
+				{
+					Hash:    "ccdc724ef1755095d5a58c2421eec75d4010b3b7",
+					Message: "feat: baz",
+				},
+			},
+			wantTag: &Tag{
+				Hash: "ff0815947e8211485d4f97ff8cf5deb49866e228",
+				Name: "v1.0.0",
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			repo := tt.repoFn(t)
+
+			commits, tag, err := ReleasableCommits(repo)
+			if tt.wantErr {
+				assert.Error(t, err)
+			} else {
+				assert.NoError(t, err)
+				assert.Equal(t, tt.wantCommits, commits)
+				assert.Equal(t, tt.wantTag, tag)
+			}
+		})
+	}
+}