package pulls

import "testing"

func TestNormalizeAutoPullBodyTrailers(t *testing.T) {
	tests := []struct {
		name  string
		input string
		want  string
	}{
		{
			name:  "trailing trailers are normalized",
			input: "This is a placeholder commit message with multiple paragraphs\n\nThe content does not matter.\n\nCo-authored-by: Developer One <dev1@example.com>\nReviewed-by: Reviewer Two <reviewer@example.com>\nTicket: PROJ-123\n",
			want:  "This is a placeholder commit message with multiple paragraphs\n\nThe content does not matter.\n\nCo-authored-by: Developer One <dev1@example.com>  \nReviewed-by: Reviewer Two <reviewer@example.com>  \nTicket: PROJ-123",
		},
		{
			name:  "regular prose with colons is unchanged",
			input: "Body\n\nThis line: has extra words and should not match\nsecond plain line",
			want:  "Body\n\nThis line: has extra words and should not match\nsecond plain line",
		},
		{
			name:  "no blank line separator means unchanged",
			input: "Body\nTicket: PROJ-123",
			want:  "Body\nTicket: PROJ-123",
		},
		{
			name:  "trailer continuation line is normalized",
			input: "Body\n\nReviewed-by: Reviewer\n\tAdditional context\nTicket: PROJ-123\n",
			want:  "Body\n\nReviewed-by: Reviewer  \n\tAdditional context  \nTicket: PROJ-123",
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got := normalizeAutoPullBodyTrailers(tt.input)
			if got != tt.want {
				t.Fatalf("normalized body = %q, want %q", got, tt.want)
			}
		})
	}
}