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comparison base/test/TestScaleTickIntervals.h @ 1450:a12fd0456f0c streaming-csv-writer

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Merge from default branch
author Chris Cannam
date Tue, 17 Apr 2018 10:35:42 +0100
parents 48e9f538e6e9
children 3a128665fa6f
comparison
equal deleted inserted replaced
1449:deabf9fd3d28 1450:a12fd0456f0c
28 class TestScaleTickIntervals : public QObject 28 class TestScaleTickIntervals : public QObject
29 { 29 {
30 Q_OBJECT 30 Q_OBJECT
31 31
32 void printDiff(vector<ScaleTickIntervals::Tick> ticks, 32 void printDiff(vector<ScaleTickIntervals::Tick> ticks,
33 vector<ScaleTickIntervals::Tick> expected) { 33 vector<ScaleTickIntervals::Tick> expected) {
34 34
35 cerr << "Have " << ticks.size() << " ticks, expected " 35 SVCERR << "Have " << ticks.size() << " ticks, expected "
36 << expected.size() << endl; 36 << expected.size() << endl;
37 for (int i = 0; i < int(ticks.size()); ++i) { 37 for (int i = 0; i < int(ticks.size()); ++i) {
38 cerr << i << ": have " << ticks[i].value << " \"" 38 SVCERR << i << ": have " << ticks[i].value << " \""
39 << ticks[i].label << "\", expected "; 39 << ticks[i].label << "\", expected ";
40 if (i < int(expected.size())) { 40 if (i < int(expected.size())) {
41 cerr << expected[i].value << " \"" << expected[i].label 41 SVCERR << expected[i].value << " \"" << expected[i].label
42 << "\"" << endl; 42 << "\"" << endl;
43 } else { 43 } else {
44 cerr << "(n/a)" << endl; 44 SVCERR << "(n/a)" << endl;
45 } 45 }
46 } 46 }
47 } 47 }
48 48
49 void compareTicks(ScaleTickIntervals::Ticks ticks, 49 void compareTicks(ScaleTickIntervals::Ticks ticks,
50 ScaleTickIntervals::Ticks expected, 50 ScaleTickIntervals::Ticks expected,
51 bool fuzzier = false) 51 bool fuzzier = false)
52 { 52 {
53 double eps = 1e-7; 53 double eps = 1e-7;
54 for (int i = 0; i < int(expected.size()); ++i) { 54 for (int i = 0; i < int(expected.size()); ++i) {
55 if (i < int(ticks.size())) { 55 if (i < int(ticks.size())) {
56 bool pass = true; 56 bool pass = true;
57 if (ticks[i].label != expected[i].label) { 57 if (ticks[i].label != expected[i].label) {
58 pass = false; 58 pass = false;
59 } else if (!fuzzier) { 59 } else if (!fuzzier) {
60 if (fabs(ticks[i].value - expected[i].value) > eps) { 60 if (fabs(ticks[i].value - expected[i].value) > eps) {
61 pass = false; 61 pass = false;
62 } 62 }
63 } else { 63 } else {
64 if (fabs(ticks[i].value - expected[i].value) > 64 if (fabs(ticks[i].value - expected[i].value) >
65 fabs(ticks[i].value) * 1e-5) { 65 fabs(ticks[i].value) * 1e-5) {
66 pass = false; 66 pass = false;
67 } 67 }
68 } 68 }
69 if (!pass) { 69 if (!pass) {
70 printDiff(ticks, expected); 70 printDiff(ticks, expected);
71 QCOMPARE(ticks[i].label, expected[i].label); 71 QCOMPARE(ticks[i].label, expected[i].label);
72 QCOMPARE(ticks[i].value, expected[i].value); 72 QCOMPARE(ticks[i].value, expected[i].value);
73 } 73 }
74 } 74 }
75 } 75 }
76 if (ticks.size() != expected.size()) { 76 if (ticks.size() != expected.size()) {
77 printDiff(ticks, expected); 77 printDiff(ticks, expected);
78 } 78 }
79 QCOMPARE(ticks.size(), expected.size()); 79 QCOMPARE(ticks.size(), expected.size());
80 } 80 }
81 81
82 private slots: 82 private slots:
83 void linear_0_1_10() 83 void linear_0_1_10()
84 { 84 {
85 auto ticks = ScaleTickIntervals::linear({ 0, 1, 10 }); 85 auto ticks = ScaleTickIntervals::linear({ 0, 1, 10 });
86 ScaleTickIntervals::Ticks expected { 86 ScaleTickIntervals::Ticks expected {
87 { 0.0, "0.0" }, 87 { 0.0, "0.0" },
88 { 0.1, "0.1" }, 88 { 0.1, "0.1" },
89 { 0.2, "0.2" }, 89 { 0.2, "0.2" },
90 { 0.3, "0.3" }, 90 { 0.3, "0.3" },
91 { 0.4, "0.4" }, 91 { 0.4, "0.4" },
92 { 0.5, "0.5" }, 92 { 0.5, "0.5" },
93 { 0.6, "0.6" }, 93 { 0.6, "0.6" },
94 { 0.7, "0.7" }, 94 { 0.7, "0.7" },
95 { 0.8, "0.8" }, 95 { 0.8, "0.8" },
96 { 0.9, "0.9" }, 96 { 0.9, "0.9" },
97 { 1.0, "1.0" } 97 { 1.0, "1.0" }
98 }; 98 };
99 compareTicks(ticks, expected); 99 compareTicks(ticks, expected);
100 } 100 }
101 101
102 void linear_0_5_5() 102 void linear_0_5_5()
103 { 103 {
104 auto ticks = ScaleTickIntervals::linear({ 0, 5, 5 }); 104 auto ticks = ScaleTickIntervals::linear({ 0, 5, 5 });
105 ScaleTickIntervals::Ticks expected { 105 ScaleTickIntervals::Ticks expected {
106 { 0, "0" }, 106 { 0, "0" },
107 { 1, "1" }, 107 { 1, "1" },
108 { 2, "2" }, 108 { 2, "2" },
109 { 3, "3" }, 109 { 3, "3" },
110 { 4, "4" }, 110 { 4, "4" },
111 { 5, "5" }, 111 { 5, "5" },
112 }; 112 };
113 compareTicks(ticks, expected); 113 compareTicks(ticks, expected);
114 } 114 }
115 115
116 void linear_0_10_5() 116 void linear_0_10_5()
117 { 117 {
118 auto ticks = ScaleTickIntervals::linear({ 0, 10, 5 }); 118 auto ticks = ScaleTickIntervals::linear({ 0, 10, 5 });
119 ScaleTickIntervals::Ticks expected { 119 ScaleTickIntervals::Ticks expected {
120 { 0, "0" }, 120 { 0, "0" },
121 { 2, "2" }, 121 { 2, "2" },
122 { 4, "4" }, 122 { 4, "4" },
123 { 6, "6" }, 123 { 6, "6" },
124 { 8, "8" }, 124 { 8, "8" },
125 { 10, "10" } 125 { 10, "10" }
126 }; 126 };
127 compareTicks(ticks, expected); 127 compareTicks(ticks, expected);
128 } 128 }
129 129
130 void linear_10_0_5() 130 void linear_10_0_5()
131 { 131 {
132 auto ticks = ScaleTickIntervals::linear({ 10, 0, 5 }); 132 auto ticks = ScaleTickIntervals::linear({ 10, 0, 5 });
133 ScaleTickIntervals::Ticks expected { 133 ScaleTickIntervals::Ticks expected {
134 { 0, "0" }, 134 { 0, "0" },
135 { 2, "2" }, 135 { 2, "2" },
136 { 4, "4" }, 136 { 4, "4" },
137 { 6, "6" }, 137 { 6, "6" },
138 { 8, "8" }, 138 { 8, "8" },
139 { 10, "10" } 139 { 10, "10" }
140 }; 140 };
141 compareTicks(ticks, expected); 141 compareTicks(ticks, expected);
142 } 142 }
143 143
144 void linear_m10_0_5() 144 void linear_m10_0_5()
145 { 145 {
146 auto ticks = ScaleTickIntervals::linear({ -10, 0, 5 }); 146 auto ticks = ScaleTickIntervals::linear({ -10, 0, 5 });
147 ScaleTickIntervals::Ticks expected { 147 ScaleTickIntervals::Ticks expected {
148 { -10, "-10" }, 148 { -10, "-10" },
149 { -8, "-8" }, 149 { -8, "-8" },
150 { -6, "-6" }, 150 { -6, "-6" },
151 { -4, "-4" }, 151 { -4, "-4" },
152 { -2, "-2" }, 152 { -2, "-2" },
153 { 0, "0" } 153 { 0, "0" }
154 }; 154 };
155 compareTicks(ticks, expected); 155 compareTicks(ticks, expected);
156 } 156 }
157 157
158 void linear_0_m10_5() 158 void linear_0_m10_5()
159 { 159 {
160 auto ticks = ScaleTickIntervals::linear({ 0, -10, 5 }); 160 auto ticks = ScaleTickIntervals::linear({ 0, -10, 5 });
161 ScaleTickIntervals::Ticks expected { 161 ScaleTickIntervals::Ticks expected {
162 { -10, "-10" }, 162 { -10, "-10" },
163 { -8, "-8" }, 163 { -8, "-8" },
164 { -6, "-6" }, 164 { -6, "-6" },
165 { -4, "-4" }, 165 { -4, "-4" },
166 { -2, "-2" }, 166 { -2, "-2" },
167 { 0, "0" } 167 { 0, "0" }
168 }; 168 };
169 compareTicks(ticks, expected); 169 compareTicks(ticks, expected);
170 } 170 }
171 171
172 void linear_0_0p1_5() 172 void linear_0_0p1_5()
173 { 173 {
174 auto ticks = ScaleTickIntervals::linear({ 0, 0.1, 5 }); 174 auto ticks = ScaleTickIntervals::linear({ 0, 0.1, 5 });
175 ScaleTickIntervals::Ticks expected { 175 ScaleTickIntervals::Ticks expected {
176 { 0.00, "0.00" }, 176 { 0.00, "0.00" },
177 { 0.02, "0.02" }, 177 { 0.02, "0.02" },
178 { 0.04, "0.04" }, 178 { 0.04, "0.04" },
179 { 0.06, "0.06" }, 179 { 0.06, "0.06" },
180 { 0.08, "0.08" }, 180 { 0.08, "0.08" },
181 { 0.10, "0.10" } 181 { 0.10, "0.10" }
182 }; 182 };
183 compareTicks(ticks, expected); 183 compareTicks(ticks, expected);
184 } 184 }
185 185
186 void linear_0_0p01_5() 186 void linear_0_0p01_5()
187 { 187 {
188 auto ticks = ScaleTickIntervals::linear({ 0, 0.01, 5 }); 188 auto ticks = ScaleTickIntervals::linear({ 0, 0.01, 5 });
189 ScaleTickIntervals::Ticks expected { 189 ScaleTickIntervals::Ticks expected {
190 { 0.000, "0.000" }, 190 { 0.000, "0.000" },
191 { 0.002, "0.002" }, 191 { 0.002, "0.002" },
192 { 0.004, "0.004" }, 192 { 0.004, "0.004" },
193 { 0.006, "0.006" }, 193 { 0.006, "0.006" },
194 { 0.008, "0.008" }, 194 { 0.008, "0.008" },
195 { 0.010, "0.010" } 195 { 0.010, "0.010" }
196 }; 196 };
197 compareTicks(ticks, expected); 197 compareTicks(ticks, expected);
198 } 198 }
199 199
200 void linear_0_0p005_5() 200 void linear_0_0p005_5()
201 { 201 {
202 auto ticks = ScaleTickIntervals::linear({ 0, 0.005, 5 }); 202 auto ticks = ScaleTickIntervals::linear({ 0, 0.005, 5 });
203 ScaleTickIntervals::Ticks expected { 203 ScaleTickIntervals::Ticks expected {
204 { 0.000, "0.000" }, 204 { 0.000, "0.000" },
205 { 0.001, "0.001" }, 205 { 0.001, "0.001" },
206 { 0.002, "0.002" }, 206 { 0.002, "0.002" },
207 { 0.003, "0.003" }, 207 { 0.003, "0.003" },
208 { 0.004, "0.004" }, 208 { 0.004, "0.004" },
209 { 0.005, "0.005" } 209 { 0.005, "0.005" }
210 }; 210 };
211 compareTicks(ticks, expected); 211 compareTicks(ticks, expected);
212 } 212 }
213 213
214 void linear_0_0p001_5() 214 void linear_0_0p001_5()
215 { 215 {
216 auto ticks = ScaleTickIntervals::linear({ 0, 0.001, 5 }); 216 auto ticks = ScaleTickIntervals::linear({ 0, 0.001, 5 });
217 ScaleTickIntervals::Ticks expected { 217 ScaleTickIntervals::Ticks expected {
218 { 0.0000, "0.0e+00" }, 218 { 0.0000, "0.0e+00" },
219 { 0.0002, "2.0e-04" }, 219 { 0.0002, "2.0e-04" },
220 { 0.0004, "4.0e-04" }, 220 { 0.0004, "4.0e-04" },
221 { 0.0006, "6.0e-04" }, 221 { 0.0006, "6.0e-04" },
222 { 0.0008, "8.0e-04" }, 222 { 0.0008, "8.0e-04" },
223 { 0.0010, "1.0e-03" } 223 { 0.0010, "1.0e-03" }
224 }; 224 };
225 compareTicks(ticks, expected); 225 compareTicks(ticks, expected);
226 } 226 }
227 227
228 void linear_1_1p001_5() 228 void linear_1_1p001_5()
229 { 229 {
230 auto ticks = ScaleTickIntervals::linear({ 1, 1.001, 5 }); 230 auto ticks = ScaleTickIntervals::linear({ 1, 1.001, 5 });
231 ScaleTickIntervals::Ticks expected { 231 ScaleTickIntervals::Ticks expected {
232 { 1.0000, "1.0000" }, 232 { 1.0000, "1.0000" },
233 { 1.0002, "1.0002" }, 233 { 1.0002, "1.0002" },
234 { 1.0004, "1.0004" }, 234 { 1.0004, "1.0004" },
235 { 1.0006, "1.0006" }, 235 { 1.0006, "1.0006" },
236 { 1.0008, "1.0008" }, 236 { 1.0008, "1.0008" },
237 { 1.0010, "1.0010" } 237 { 1.0010, "1.0010" }
238 }; 238 };
239 compareTicks(ticks, expected); 239 compareTicks(ticks, expected);
240 } 240 }
241 241
242 void linear_0p001_1_5() 242 void linear_0p001_1_5()
243 { 243 {
244 auto ticks = ScaleTickIntervals::linear({ 0.001, 1, 5 }); 244 auto ticks = ScaleTickIntervals::linear({ 0.001, 1, 5 });
245 ScaleTickIntervals::Ticks expected { 245 ScaleTickIntervals::Ticks expected {
246 { 0.1, "0.1" }, 246 { 0.1, "0.1" },
247 { 0.3, "0.3" }, 247 { 0.3, "0.3" },
248 { 0.5, "0.5" }, 248 { 0.5, "0.5" },
249 { 0.7, "0.7" }, 249 { 0.7, "0.7" },
250 { 0.9, "0.9" }, 250 { 0.9, "0.9" },
251 }; 251 };
252 compareTicks(ticks, expected); 252 compareTicks(ticks, expected);
253 } 253 }
254 254
255 void linear_10000_10010_5() 255 void linear_10000_10010_5()
256 { 256 {
257 auto ticks = ScaleTickIntervals::linear({ 10000, 10010, 5 }); 257 auto ticks = ScaleTickIntervals::linear({ 10000, 10010, 5 });
258 ScaleTickIntervals::Ticks expected { 258 ScaleTickIntervals::Ticks expected {
259 { 10000, "10000" }, 259 { 10000, "10000" },
260 { 10002, "10002" }, 260 { 10002, "10002" },
261 { 10004, "10004" }, 261 { 10004, "10004" },
262 { 10006, "10006" }, 262 { 10006, "10006" },
263 { 10008, "10008" }, 263 { 10008, "10008" },
264 { 10010, "10010" }, 264 { 10010, "10010" },
265 }; 265 };
266 compareTicks(ticks, expected); 266 compareTicks(ticks, expected);
267 } 267 }
268 268
269 void linear_10000_20000_5() 269 void linear_10000_20000_5()
270 { 270 {
271 auto ticks = ScaleTickIntervals::linear({ 10000, 20000, 5 }); 271 auto ticks = ScaleTickIntervals::linear({ 10000, 20000, 5 });
272 ScaleTickIntervals::Ticks expected { 272 ScaleTickIntervals::Ticks expected {
273 { 10000, "10000" }, 273 { 10000, "10000" },
274 { 12000, "12000" }, 274 { 12000, "12000" },
275 { 14000, "14000" }, 275 { 14000, "14000" },
276 { 16000, "16000" }, 276 { 16000, "16000" },
277 { 18000, "18000" }, 277 { 18000, "18000" },
278 { 20000, "20000" }, 278 { 20000, "20000" },
279 }; 279 };
280 compareTicks(ticks, expected); 280 compareTicks(ticks, expected);
281 } 281 }
282 282
283 void linear_m1_1_10() 283 void linear_m1_1_10()
284 { 284 {
285 auto ticks = ScaleTickIntervals::linear({ -1, 1, 10 }); 285 auto ticks = ScaleTickIntervals::linear({ -1, 1, 10 });
286 ScaleTickIntervals::Ticks expected { 286 ScaleTickIntervals::Ticks expected {
287 { -1.0, "-1.0" }, 287 { -1.0, "-1.0" },
288 { -0.8, "-0.8" }, 288 { -0.8, "-0.8" },
289 { -0.6, "-0.6" }, 289 { -0.6, "-0.6" },
290 { -0.4, "-0.4" }, 290 { -0.4, "-0.4" },
291 { -0.2, "-0.2" }, 291 { -0.2, "-0.2" },
292 { 0.0, "0.0" }, 292 { 0.0, "0.0" },
293 { 0.2, "0.2" }, 293 { 0.2, "0.2" },
294 { 0.4, "0.4" }, 294 { 0.4, "0.4" },
295 { 0.6, "0.6" }, 295 { 0.6, "0.6" },
296 { 0.8, "0.8" }, 296 { 0.8, "0.8" },
297 { 1.0, "1.0" } 297 { 1.0, "1.0" }
298 }; 298 };
299 compareTicks(ticks, expected); 299 compareTicks(ticks, expected);
300 } 300 }
301 301
302 void linear_221p23_623p7_57p4() 302 void linear_221p23_623p7_57p4()
303 { 303 {
304 auto ticks = ScaleTickIntervals::linear({ 221.23, 623.7, 4 }); 304 auto ticks = ScaleTickIntervals::linear({ 221.23, 623.7, 4 });
305 // only 4 ticks, not 5, because none of the rounded tick 305 // only 4 ticks, not 5, because none of the rounded tick
306 // values lies on an end value 306 // values lies on an end value
307 ScaleTickIntervals::Ticks expected { 307 ScaleTickIntervals::Ticks expected {
308 { 300, "300" }, 308 { 300, "300" },
309 { 400, "400" }, 309 { 400, "400" },
310 { 500, "500" }, 310 { 500, "500" },
311 { 600, "600" }, 311 { 600, "600" },
312 }; 312 };
313 compareTicks(ticks, expected); 313 compareTicks(ticks, expected);
314 } 314 }
315 315
316 void linear_sqrt2_pi_7() 316 void linear_sqrt2_pi_7()
317 { 317 {
318 auto ticks = ScaleTickIntervals::linear({ sqrt(2.0), M_PI, 7 }); 318 auto ticks = ScaleTickIntervals::linear({ sqrt(2.0), M_PI, 7 });
319 // This would be better in steps of 0.25, but we only round to 319 // This would be better in steps of 0.25, but we only round to
320 // integral powers of ten 320 // integral powers of ten
321 ScaleTickIntervals::Ticks expected { 321 ScaleTickIntervals::Ticks expected {
322 { 1.5, "1.5" }, 322 { 1.5, "1.5" },
323 { 1.7, "1.7" }, 323 { 1.7, "1.7" },
324 { 1.9, "1.9" }, 324 { 1.9, "1.9" },
325 { 2.1, "2.1" }, 325 { 2.1, "2.1" },
326 { 2.3, "2.3" }, 326 { 2.3, "2.3" },
327 { 2.5, "2.5" }, 327 { 2.5, "2.5" },
328 { 2.7, "2.7" }, 328 { 2.7, "2.7" },
329 { 2.9, "2.9" }, 329 { 2.9, "2.9" },
330 { 3.1, "3.1" }, 330 { 3.1, "3.1" },
331 }; 331 };
332 compareTicks(ticks, expected); 332 compareTicks(ticks, expected);
333 } 333 }
334 334
335 void linear_pi_avogadro_7() 335 void linear_pi_avogadro_7()
336 { 336 {
337 auto ticks = ScaleTickIntervals::linear({ M_PI, 6.022140857e23, 7 }); 337 auto ticks = ScaleTickIntervals::linear({ M_PI, 6.022140857e23, 7 });
338 ScaleTickIntervals::Ticks expected { 338 ScaleTickIntervals::Ticks expected {
339 // not perfect, but ok-ish 339 // not perfect, but ok-ish
340 { 0, "0.0e+00" }, 340 { 0, "0.0e+00" },
341 { 9e+22, "9.0e+22" }, 341 { 9e+22, "9.0e+22" },
342 { 1.8e+23, "1.8e+23" }, 342 { 1.8e+23, "1.8e+23" },
343 { 2.7e+23, "2.7e+23" }, 343 { 2.7e+23, "2.7e+23" },
344 { 3.6e+23, "3.6e+23" }, 344 { 3.6e+23, "3.6e+23" },
345 { 4.5e+23, "4.5e+23" }, 345 { 4.5e+23, "4.5e+23" },
346 { 5.4e+23, "5.4e+23" }, 346 { 5.4e+23, "5.4e+23" },
347 }; 347 };
348 compareTicks(ticks, expected); 348 compareTicks(ticks, expected);
349 } 349 }
350 350
351 void linear_2_3_1() 351 void linear_2_3_1()
352 { 352 {
353 auto ticks = ScaleTickIntervals::linear({ 2, 3, 1 }); 353 auto ticks = ScaleTickIntervals::linear({ 2, 3, 1 });
354 ScaleTickIntervals::Ticks expected { 354 ScaleTickIntervals::Ticks expected {
355 { 2.0, "2" }, 355 { 2.0, "2" },
356 { 3.0, "3" } 356 { 3.0, "3" }
357 }; 357 };
358 compareTicks(ticks, expected); 358 compareTicks(ticks, expected);
359 } 359 }
360 360
361 void linear_2_3_2() 361 void linear_2_3_2()
362 { 362 {
363 auto ticks = ScaleTickIntervals::linear({ 2, 3, 2 }); 363 auto ticks = ScaleTickIntervals::linear({ 2, 3, 2 });
364 ScaleTickIntervals::Ticks expected { 364 ScaleTickIntervals::Ticks expected {
365 { 2.0, "2.0" }, 365 { 2.0, "2.0" },
366 { 2.5, "2.5" }, 366 { 2.5, "2.5" },
367 { 3.0, "3.0" } 367 { 3.0, "3.0" }
368 }; 368 };
369 compareTicks(ticks, expected); 369 compareTicks(ticks, expected);
370 } 370 }
371 371
372 void linear_2_3_3() 372 void linear_2_3_3()
373 { 373 {
374 auto ticks = ScaleTickIntervals::linear({ 2, 3, 3 }); 374 auto ticks = ScaleTickIntervals::linear({ 2, 3, 3 });
375 ScaleTickIntervals::Ticks expected { 375 ScaleTickIntervals::Ticks expected {
376 { 2.0, "2.0" }, 376 { 2.0, "2.0" },
377 { 2.3, "2.3" }, 377 { 2.3, "2.3" },
378 { 2.6, "2.6" }, 378 { 2.6, "2.6" },
379 { 2.9, "2.9" } 379 { 2.9, "2.9" }
380 }; 380 };
381 compareTicks(ticks, expected); 381 compareTicks(ticks, expected);
382 } 382 }
383 383
384 void linear_2_3_4() 384 void linear_2_3_4()
385 { 385 {
386 auto ticks = ScaleTickIntervals::linear({ 2, 3, 4 }); 386 auto ticks = ScaleTickIntervals::linear({ 2, 3, 4 });
387 // This would be better in steps of 0.25, but we only round to 387 // This would be better in steps of 0.25, but we only round to
388 // integral powers of ten 388 // integral powers of ten
389 ScaleTickIntervals::Ticks expected { 389 ScaleTickIntervals::Ticks expected {
390 { 2.0, "2.0" }, 390 { 2.0, "2.0" },
391 { 2.3, "2.3" }, 391 { 2.3, "2.3" },
392 { 2.6, "2.6" }, 392 { 2.6, "2.6" },
393 { 2.9, "2.9" } 393 { 2.9, "2.9" }
394 }; 394 };
395 compareTicks(ticks, expected); 395 compareTicks(ticks, expected);
396 } 396 }
397 397
398 void linear_2_3_5() 398 void linear_2_3_5()
399 { 399 {
400 auto ticks = ScaleTickIntervals::linear({ 2, 3, 5 }); 400 auto ticks = ScaleTickIntervals::linear({ 2, 3, 5 });
401 ScaleTickIntervals::Ticks expected { 401 ScaleTickIntervals::Ticks expected {
402 { 2.0, "2.0" }, 402 { 2.0, "2.0" },
403 { 2.2, "2.2" }, 403 { 2.2, "2.2" },
404 { 2.4, "2.4" }, 404 { 2.4, "2.4" },
405 { 2.6, "2.6" }, 405 { 2.6, "2.6" },
406 { 2.8, "2.8" }, 406 { 2.8, "2.8" },
407 { 3.0, "3.0" } 407 { 3.0, "3.0" }
408 }; 408 };
409 compareTicks(ticks, expected); 409 compareTicks(ticks, expected);
410 } 410 }
411 411
412 void linear_2_3_6() 412 void linear_2_3_6()
413 { 413 {
414 auto ticks = ScaleTickIntervals::linear({ 2, 3, 6 }); 414 auto ticks = ScaleTickIntervals::linear({ 2, 3, 6 });
415 ScaleTickIntervals::Ticks expected { 415 ScaleTickIntervals::Ticks expected {
416 { 2.0, "2.0" }, 416 { 2.0, "2.0" },
417 { 2.2, "2.2" }, 417 { 2.2, "2.2" },
418 { 2.4, "2.4" }, 418 { 2.4, "2.4" },
419 { 2.6, "2.6" }, 419 { 2.6, "2.6" },
420 { 2.8, "2.8" }, 420 { 2.8, "2.8" },
421 { 3.0, "3.0" } 421 { 3.0, "3.0" }
422 }; 422 };
423 compareTicks(ticks, expected); 423 compareTicks(ticks, expected);
424 } 424 }
425 425
426 void linear_1_1_10() 426 void linear_1_1_10()
427 { 427 {
428 // pathological range 428 // pathological range
429 auto ticks = ScaleTickIntervals::linear({ 1, 1, 10 }); 429 auto ticks = ScaleTickIntervals::linear({ 1, 1, 10 });
430 ScaleTickIntervals::Ticks expected { 430 ScaleTickIntervals::Ticks expected {
431 { 1.0, "1" } 431 { 1.0, "1" }
432 }; 432 };
433 compareTicks(ticks, expected); 433 compareTicks(ticks, expected);
434 } 434 }
435 435
436 void linear_0_0_10() 436 void linear_0_0_10()
437 { 437 {
438 // pathological range 438 // pathological range
439 auto ticks = ScaleTickIntervals::linear({ 0, 0, 10 }); 439 auto ticks = ScaleTickIntervals::linear({ 0, 0, 10 });
440 ScaleTickIntervals::Ticks expected { 440 ScaleTickIntervals::Ticks expected {
441 { 0.0, "0" } 441 { 0.0, "0" }
442 }; 442 };
443 compareTicks(ticks, expected); 443 compareTicks(ticks, expected);
444 } 444 }
445 445
446 void linear_0_1_1() 446 void linear_0_1_1()
447 { 447 {
448 auto ticks = ScaleTickIntervals::linear({ 0, 1, 1 }); 448 auto ticks = ScaleTickIntervals::linear({ 0, 1, 1 });
449 ScaleTickIntervals::Ticks expected { 449 ScaleTickIntervals::Ticks expected {
450 { 0.0, "0" }, 450 { 0.0, "0" },
451 { 1.0, "1" } 451 { 1.0, "1" }
452 }; 452 };
453 compareTicks(ticks, expected); 453 compareTicks(ticks, expected);
454 } 454 }
455 455
456 void linear_0_1_0() 456 void linear_0_1_0()
457 { 457 {
458 // senseless input 458 // senseless input
459 auto ticks = ScaleTickIntervals::linear({ 0, 1, 0 }); 459 auto ticks = ScaleTickIntervals::linear({ 0, 1, 0 });
460 ScaleTickIntervals::Ticks expected { 460 ScaleTickIntervals::Ticks expected {
461 { 0.0, "0" }, 461 { 0.0, "0" },
462 }; 462 };
463 compareTicks(ticks, expected); 463 compareTicks(ticks, expected);
464 } 464 }
465 465
466 void linear_0_1_m1() 466 void linear_0_1_m1()
467 { 467 {
468 // senseless input 468 // senseless input
469 auto ticks = ScaleTickIntervals::linear({ 0, 1, -1 }); 469 auto ticks = ScaleTickIntervals::linear({ 0, 1, -1 });
470 ScaleTickIntervals::Ticks expected { 470 ScaleTickIntervals::Ticks expected {
471 { 0.0, "0" }, 471 { 0.0, "0" },
472 }; 472 };
473 compareTicks(ticks, expected); 473 compareTicks(ticks, expected);
474 } 474 }
475 475
476 void linear_0p465_778_10() 476 void linear_0p465_778_10()
477 { 477 {
478 // a case that gave unsatisfactory results in real life 478 // a case that gave unsatisfactory results in real life
494 } 494 }
495 495
496 void log_1_10_2() 496 void log_1_10_2()
497 { 497 {
498 auto ticks = ScaleTickIntervals::logarithmic({ 1, 10, 2 }); 498 auto ticks = ScaleTickIntervals::logarithmic({ 1, 10, 2 });
499 ScaleTickIntervals::Ticks expected { 499 ScaleTickIntervals::Ticks expected {
500 { 1.0, "1.0" }, 500 { 1.0, "1.0" },
501 { pow(10.0, 0.5), "3.2" }, 501 { pow(10.0, 0.5), "3.2" },
502 { 10.0, "10.0" }, 502 { 10.0, "10.0" },
503 }; 503 };
504 compareTicks(ticks, expected); 504 compareTicks(ticks, expected);
505 } 505 }
506 506
507 void log_0_10_2() 507 void log_0_10_2()
508 { 508 {
509 auto ticks = ScaleTickIntervals::logarithmic({ 0, 10, 2 }); 509 auto ticks = ScaleTickIntervals::logarithmic({ 0, 10, 2 });
510 ScaleTickIntervals::Ticks expected { 510 ScaleTickIntervals::Ticks expected {
511 { 1e-6, "1e-06" }, 511 { 1e-6, "1e-06" },
512 { 1, "1" }, 512 { 1, "1" },
513 }; 513 };
514 compareTicks(ticks, expected); 514 compareTicks(ticks, expected);
515 } 515 }
516 516
517 void log_pi_avogadro_7() 517 void log_pi_avogadro_7()
518 { 518 {
519 auto ticks = ScaleTickIntervals::logarithmic({ M_PI, 6.022140857e23, 7 }); 519 auto ticks = ScaleTickIntervals::logarithmic({ M_PI, 6.022140857e23, 7 });
520 ScaleTickIntervals::Ticks expected { 520 ScaleTickIntervals::Ticks expected {
521 { 1000, "1e+03" }, 521 { 1000, "1e+03" },
522 { 1e+06, "1e+06" }, 522 { 1e+06, "1e+06" },
523 { 1e+09, "1e+09" }, 523 { 1e+09, "1e+09" },
524 { 1e+12, "1e+12" }, 524 { 1e+12, "1e+12" },
525 { 1e+15, "1e+15" }, 525 { 1e+15, "1e+15" },
526 { 1e+18, "1e+18" }, 526 { 1e+18, "1e+18" },
527 { 1e+21, "1e+21" }, 527 { 1e+21, "1e+21" },
528 }; 528 };
529 compareTicks(ticks, expected, true); 529 compareTicks(ticks, expected, true);
530 } 530 }
531 531
532 void log_0p465_778_10() 532 void log_0p465_778_10()
533 { 533 {
534 auto ticks = ScaleTickIntervals::logarithmic({ 0.465, 778.08, 10 }); 534 auto ticks = ScaleTickIntervals::logarithmic({ 0.465, 778.08, 10 });