(t *testing.T)
| 144 | } |
| 145 | |
| 146 | func TestOptimiseEncoding(t *testing.T) { |
| 147 | tests := []struct { |
| 148 | dataEncoderType dataEncoderType |
| 149 | actual []testModeSegment |
| 150 | optimised []testModeSegment |
| 151 | }{ |
| 152 | // Coalescing multiple segments. |
| 153 | { |
| 154 | dataEncoderType1To9, |
| 155 | []testModeSegment{ |
| 156 | {dataModeAlphanumeric, 1}, // length = 4 + 9 + 6 = 19 bits |
| 157 | {dataModeNumeric, 1}, // length = 4 + 10 + 4 = 18 bits |
| 158 | {dataModeAlphanumeric, 1}, // 19 bits. |
| 159 | {dataModeNumeric, 1}, // 18 bits. |
| 160 | {dataModeAlphanumeric, 1}, // 19 bits. |
| 161 | // total = 93 bits. |
| 162 | }, |
| 163 | []testModeSegment{ |
| 164 | {dataModeAlphanumeric, 5}, // length = 4 + 9 + 22 + 6 = 41. |
| 165 | }, |
| 166 | }, |
| 167 | // Coalesing not necessary. |
| 168 | { |
| 169 | dataEncoderType1To9, |
| 170 | []testModeSegment{ |
| 171 | {dataModeAlphanumeric, 1}, |
| 172 | {dataModeNumeric, 20}, |
| 173 | }, |
| 174 | []testModeSegment{ |
| 175 | {dataModeAlphanumeric, 1}, |
| 176 | {dataModeNumeric, 20}, |
| 177 | }, |
| 178 | }, |
| 179 | // Switch to more general dataMode. |
| 180 | { |
| 181 | dataEncoderType1To9, |
| 182 | []testModeSegment{ |
| 183 | {dataModeAlphanumeric, 100}, |
| 184 | {dataModeByte, 1}, |
| 185 | {dataModeNumeric, 1}, |
| 186 | }, |
| 187 | []testModeSegment{ |
| 188 | {dataModeAlphanumeric, 100}, |
| 189 | {dataModeByte, 2}, |
| 190 | }, |
| 191 | }, |
| 192 | // Sometimes encoding everything as bytes is more efficient. |
| 193 | { |
| 194 | dataEncoderType1To9, |
| 195 | []testModeSegment{ |
| 196 | {dataModeAlphanumeric, 1}, |
| 197 | {dataModeByte, 1}, |
| 198 | {dataModeNumeric, 1}, |
| 199 | }, |
| 200 | []testModeSegment{ |
| 201 | {dataModeByte, 3}, |
| 202 | }, |
| 203 | }, |
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