Function TestCopy

synthesis/codon/codon_test.go:601–678

(t *testing.T)

}

func TestCopy(t *testing.T) {
	t.Parallel()

	cmpOptions := []cmp.Option{
		cmpopts.IgnoreUnexported(weightedRand.Chooser{}),
	}

	tests := []struct {
		name string

		wantErr error
	}{
		{
			name: "ok",

			wantErr: nil,
		},
	}

	for _, tt := range tests {
		var tt = tt
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()

			original, err := NewTranslationTable(11)
			if err != nil {
				t.Fatal(err)
			}

			// perform a deep copy (changing the copy will not change the original)

			deepCopy, err := original.Copy()
			if !errors.Is(err, tt.wantErr) {
				t.Errorf("got %v, want %v", err, tt.wantErr)
			}

			// modify fields

			deepCopy.StartCodons[0] = "🍌"
			deepCopy.StopCodons[0] = "🐗"
			deepCopy.AminoAcids = []AminoAcid{}
			deepCopy.Choosers = map[string]weightedRand.Chooser{}
			deepCopy.Stats = &Stats{}
			deepCopy.TranslationMap = map[string]string{}

			// this compares pointers
			if cmp.Equal(deepCopy, original, cmpOptions...) {
				t.Errorf("deepCopy and original matched, we did not want them to %s", cmp.Diff(deepCopy, original, cmpOptions...))
			}

			// we compare the table's fields

			if cmp.Equal(deepCopy.StartCodonTable, original.StartCodons) {
				t.Errorf("deepCopy and original matched, we did not want them to %s", cmp.Diff(deepCopy.StartCodonTable, original.StartCodons))
			}

			if cmp.Equal(deepCopy.StopCodons, original.StopCodons) {
				t.Errorf("deepCopy and original matched, we did not want them to %s", cmp.Diff(deepCopy.StopCodons, original.StopCodons))