field_compactor.js 4.2 KB

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  1. 'use strict';
  2. var test = require('tap').test;
  3. var compactField = require('../lib/field_compactor');
  4. test('compact field - empty array', function(t) {
  5. try {
  6. var result = compactField([]);
  7. t.same(result, []);
  8. } catch (err) {
  9. t.error(err, 'compact field error');
  10. }
  11. t.end();
  12. });
  13. test('compact field - single element array', function(t) {
  14. try {
  15. var result = compactField([1]);
  16. t.same(result, [{
  17. start: 1,
  18. count: 1
  19. }]);
  20. } catch (err) {
  21. t.error(err, 'compact field error');
  22. }
  23. t.end();
  24. });
  25. test('compact field - 2 elements array', function(t) {
  26. try {
  27. var result = compactField([1, 2]);
  28. t.same(result, [
  29. {
  30. start: 1,
  31. count: 1
  32. },
  33. {
  34. start: 2,
  35. count: 1
  36. }
  37. ]);
  38. } catch (err) {
  39. t.error(err, 'compact field error');
  40. }
  41. t.end();
  42. });
  43. test('compact field - 2 elements array big step', function(t) {
  44. try {
  45. var result = compactField([1, 5]);
  46. t.same(result, [
  47. {
  48. start: 1,
  49. count: 1
  50. },
  51. {
  52. start: 5,
  53. count: 1
  54. }
  55. ]);
  56. } catch (err) {
  57. t.error(err, 'compact field error');
  58. }
  59. t.end();
  60. });
  61. test('compact field - 3 elements array 1 step', function(t) {
  62. try {
  63. var result = compactField([1, 2, 3]);
  64. t.same(result, [
  65. {
  66. start: 1,
  67. end: 3,
  68. count: 3,
  69. step: 1
  70. }
  71. ]);
  72. } catch (err) {
  73. t.error(err, 'compact field error');
  74. }
  75. t.end();
  76. });
  77. test('compact field - 3 elements array 1 step, dangling extra at end', function(t) {
  78. try {
  79. var result = compactField([1, 2, 3, 5]);
  80. t.same(result, [
  81. {
  82. start: 1,
  83. end: 3,
  84. count: 3,
  85. step: 1
  86. },
  87. {
  88. start: 5,
  89. count: 1
  90. }
  91. ]);
  92. } catch (err) {
  93. t.error(err, 'compact field error');
  94. }
  95. t.end();
  96. });
  97. test('compact field - 3 elements array 1 step, dangling extra at end and beginning', function(t) {
  98. try {
  99. var result = compactField([1, 4, 5, 6, 9]);
  100. t.same(result, [
  101. {
  102. start: 1,
  103. count: 1
  104. },
  105. {
  106. start: 4,
  107. end: 6,
  108. count: 3,
  109. step: 1
  110. },
  111. {
  112. start: 9,
  113. count: 1
  114. }
  115. ]);
  116. } catch (err) {
  117. t.error(err, 'compact field error');
  118. }
  119. t.end();
  120. });
  121. test('compact field - 2 ranges with dangling in the middle', function(t) {
  122. try {
  123. var result = compactField([1, 2, 3, 6, 9, 11, 13]);
  124. t.same(result, [
  125. {
  126. start: 1,
  127. end: 3,
  128. count: 3,
  129. step: 1
  130. },
  131. {
  132. start: 6,
  133. count: 1
  134. },
  135. {
  136. start: 9,
  137. end: 13,
  138. count: 3,
  139. step: 2
  140. }
  141. ]);
  142. } catch (err) {
  143. t.error(err, 'compact field error');
  144. }
  145. t.end();
  146. });
  147. test('compact field - with chars', function(t) {
  148. try {
  149. var result = compactField(['L', 'W']);
  150. t.same(result, [
  151. {
  152. start: 'L',
  153. count: 1
  154. },
  155. {
  156. start: 'W',
  157. count: 1
  158. }
  159. ]);
  160. } catch (err) {
  161. t.error(err, 'compact field error');
  162. }
  163. t.end();
  164. });
  165. test('compact field - with chars and range', function(t) {
  166. try {
  167. var result = compactField([1, 'L', 'W']);
  168. t.same(result, [
  169. {
  170. start: 1,
  171. count: 1,
  172. },
  173. {
  174. start: 'L',
  175. count: 1
  176. },
  177. {
  178. start: 'W',
  179. count: 1
  180. }
  181. ]);
  182. } catch (err) {
  183. t.error(err, 'compact field error');
  184. }
  185. t.end();
  186. });
  187. test('compact field - with chars and range (v2)', function(t) {
  188. try {
  189. var result = compactField([1, 2, 'L', 'W']);
  190. t.same(result, [
  191. {
  192. start: 1,
  193. count: 1,
  194. },
  195. {
  196. start: 2,
  197. count: 1,
  198. },
  199. {
  200. start: 'L',
  201. count: 1
  202. },
  203. {
  204. start: 'W',
  205. count: 1
  206. }
  207. ]);
  208. } catch (err) {
  209. t.error(err, 'compact field error');
  210. }
  211. t.end();
  212. });
  213. test('compact field - with chars and range (v3)', function(t) {
  214. try {
  215. var result = compactField([1, 2, 3, 'L', 'W']);
  216. t.same(result, [
  217. {
  218. start: 1,
  219. end: 3,
  220. count: 3,
  221. step: 1
  222. },
  223. {
  224. start: 'L',
  225. count: 1
  226. },
  227. {
  228. start: 'W',
  229. count: 1
  230. }
  231. ]);
  232. } catch (err) {
  233. t.error(err, 'compact field error');
  234. }
  235. t.end();
  236. });