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annotate src/layout/Layout.test.ts @ 122:2e8fa3fec0c8

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support joining subjects into wider rows
author drewp@bigasterisk.com
date Sun, 20 Mar 2022 14:12:03 -0700
parents 3584f24becf4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import { Quad, Store, Term } from "n3";
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2 import { n3Graph } from "./fetchAndParse";
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3 import { AlignedTable, Layout, LayoutResult } from "./Layout";
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4 import { EX, rdf } from "./namespaces";
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5 import { ViewConfig } from "./ViewConfig";
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6
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7 const twoStatements = async (): Promise<Store> => {
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8 return n3Graph(`
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9 @prefix : <http://example.com/> .
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10 :g1 {
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11 :a0 :b0 :c0 .
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12 :d0 :e0 :f0 .
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13 }
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14 `);
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15 };
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16
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17 const typedStatements = async (): Promise<Store> => {
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18 return n3Graph(`
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19 @prefix : <http://example.com/> .
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20 :g1 {
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21 :a a :T1 ; :color :red .
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22 :b a :T1 ; :color :blue .
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23 :c a :T1 .
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24 :d a :T2 ; :size :big .
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25 :e a :T1,:T2; :size :small
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26 }
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27 `);
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28 };
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29 function G1(s: Term, p: Term, o: Term): Quad {
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30 return new Quad(s, p, o, EX("g1"));
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31 }
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32
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33 describe("Layout", () => {
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34 it("accepts a ViewConfig", async () => {
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35 const vc = new ViewConfig();
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36 await vc.readFromGraph(`
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37 @prefix : <http://example.com/> .
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38 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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39
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40 <> a :View; rdfs:label "repos" .`);
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41 const layout = new Layout(vc);
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42 const lr = layout.plan(await twoStatements());
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43 });
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44 it("returns no sections for empty graph", () => {
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45 const vc = new ViewConfig();
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46 const layout = new Layout(vc);
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47 const lr = layout.plan(new Store());
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48 expect(lr.sections).toHaveLength(0);
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49 });
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50 it("defaults to putting all triples in the ungrouped list", async () => {
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51 const layout = new Layout();
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52 const lr = layout.plan(await twoStatements());
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53 expect(lr).toEqual({
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54 sections: [
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55 {
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56 subjRows: [
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57 {
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58 subj: EX("a0"),
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59 predRows: [{ pred: EX("b0"), objs: [EX("c0")] }],
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60 },
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61 {
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62 subj: EX("d0"),
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63 predRows: [{ pred: EX("e0"), objs: [EX("f0")] }],
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64 },
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65 ],
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66 },
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67 ],
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68 });
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69 });
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70 describe("makes a table as requested by ViewConfig", () => {
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71 let lr: LayoutResult;
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72
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73 beforeAll(async () => {
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74 const vc = new ViewConfig();
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75 await vc.readFromGraph(`
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76 @prefix : <http://example.com/> .
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77
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78 <> a :View; :table [ :primaryType :T1 ] .`);
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79 const layout = new Layout(vc);
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80 lr = layout.plan(await typedStatements());
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81 });
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82 it("returns 2 sections", () => {
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83 expect(lr.sections).toHaveLength(2);
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84 });
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85 it("puts the right type in the table", async () => {
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86 const section0 = lr.sections[0] as AlignedTable;
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87 expect(section0.columnHeaders).toEqual([
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88 { rdfTypes: [EX("T1")], pred: EX("color") },
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89 { rdfTypes: [EX("T1"), EX("T2")], pred: EX("size") },
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90 // and doesn't include rdf:type as a column header here
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91 ]);
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92 expect(section0.rowHeaders).toEqual([EX("a"), EX("b"), EX("c"), EX("e")]);
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93 expect(section0.rows).toEqual([
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94 [[EX("red")], []],
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95 [[EX("blue")], []],
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96 [[], []],
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97 [[], [EX("small")]],
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98 ]);
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99 });
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100 it("leaves the rest ungrouped", async () => {
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101 expect(lr.sections[1]).toEqual({
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102 subjRows: [
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103 {
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104 subj: EX("d"),
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105 predRows: [
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106 { pred: EX("size"), objs: [EX("big")] },
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107 { pred: rdf.type, objs: [EX("T2")] },
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108 ],
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109 },
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110 ],
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111 });
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112 });
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113 });
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114 it("makes two tables", async () => {
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115 const vc = new ViewConfig();
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116 await vc.readFromGraph(`
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117 @prefix : <http://example.com/> .
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118
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119 <> a :View; :table [ :primaryType :T1 ], [ :primaryType :T2 ] .`);
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120 const layout = new Layout(vc);
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121 const lr = layout.plan(await typedStatements());
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122 expect(lr.sections).toHaveLength(2);
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123 const section0 = lr.sections[0] as AlignedTable;
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124 expect(section0.columnHeaders).toEqual([
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125 { rdfTypes: [EX("T1")], pred: EX("color") },
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126 { rdfTypes: [EX("T1"), EX("T2")], pred: EX("size") },
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127 ]);
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128 expect(section0.rowHeaders).toEqual([EX("a"), EX("b"), EX("c"), EX("e")]);
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129 expect(section0.rows).toEqual([
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130 [[EX("red")], []],
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131 [[EX("blue")], []],
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132 [[], []],
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133 [[], [EX("small")]],
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134 ]);
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135 const section1 = lr.sections[1] as AlignedTable;
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136 expect(section1.columnHeaders).toEqual([
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137 { rdfTypes: [EX("T1"), EX("T2")], pred: EX("size") },
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138 ]);
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139 expect(section1.rowHeaders).toEqual([EX("d"), EX("e")]);
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140 expect(section1.rows).toEqual([
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141 [[EX("big")]], //
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142 [[EX("small")]],
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143 ]);
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144 });
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145 describe("joins multiple types into one table", () => {
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146 it("can simply display multiple types merged together", async () => {
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147 const vc = new ViewConfig();
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148 await vc.readFromGraph(`
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149 @prefix ex: <http://example.com/> .
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150 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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151 @prefix : <http://example.com/> .
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152
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153 <> a :View; :table [ :primaryType :T1; :joinType :T2 ] .
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154 `);
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155 const layout = new Layout(vc);
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156 const lr = layout.plan(
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157 await n3Graph(`
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158 @prefix : <http://example.com/> .
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159 :g1 {
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160 :a a :T1 ; :color :red .
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161 :b a :T2 ; :size :big .
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162 }
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163 `)
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164 );
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165 expect(lr.sections).toHaveLength(1);
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166 const section0 = lr.sections[0] as AlignedTable;
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167 expect(section0.columnHeaders).toEqual([
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168 { rdfTypes: [EX("T1")], pred: EX("color") },
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169 { rdfTypes: [EX("T2")], pred: EX("size") },
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170 ]);
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171 expect(section0.rowHeaders).toEqual([EX("a"), EX("b")]);
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172 expect(section0.rows).toEqual([
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173 [[EX("red")], []],
118
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174 [[], [EX("big")]],
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175 ]);
116
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176 });
121
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177 it("groups columns by type", async () => {
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178 const vc = new ViewConfig();
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179 await vc.readFromGraph(`
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180 @prefix ex: <http://example.com/> .
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181 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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182 @prefix : <http://example.com/> .
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183
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184 <> a :View; :table [ :primaryType :T1; :joinType :T2, :T3 ] .
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185 `);
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186 const layout = new Layout(vc);
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187 const lr = layout.plan(
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188 await n3Graph(`
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189 @prefix : <http://example.com/> .
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190 :g1 {
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191 :a a :T1; :p1 :red; :p3 :green .
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192 :b a :T2; :p2 :blue .
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193 }
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194 `)
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195 );
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196 const section0 = lr.sections[0] as AlignedTable;
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197 expect(section0.columnHeaders).toEqual([
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198 { rdfTypes: [EX("T1")], pred: EX("p1") },
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199 { rdfTypes: [EX("T1")], pred: EX("p3") },
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200 { rdfTypes: [EX("T2")], pred: EX("p2") },
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201 ]);
122
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202 });
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203 it("joins over an edge", async () => {
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204 const vc = new ViewConfig();
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205 await vc.readFromGraph(`
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206 @prefix : <http://example.com/> .
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207
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208 <> a :View; :table [
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209 :primaryType :T1;
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210 :link [:predicate :predLink ] ] .
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211 `);
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212 const layout = new Layout(vc);
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213 const lr = layout.plan(
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214 await n3Graph(`
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215 @prefix : <http://example.com/> .
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216 :g1 {
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217 :a a :T1; :color :red; :predLink :b .
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218 :b a :T2; :size :big .
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219 }
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220 `)
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221 );
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222
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223 expect(lr.sections).toHaveLength(1); // no loose statements
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224 const section0 = lr.sections[0] as AlignedTable;
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225 expect(section0.rowHeaders).toEqual([EX("a")]);
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226 expect(section0.columnHeaders).toEqual([
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227 { rdfTypes: [EX("T1")], pred: EX("color") },
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228 // :predLink column is hidden
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229 { rdfTypes: [EX("T2")], pred: EX("size") },
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230 ]);
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231 });
116
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232 });
122
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233 it("joins 3 subjects into one", async () => {
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234 const vc = new ViewConfig();
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235 await vc.readFromGraph(`
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236 @prefix : <http://example.com/> .
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237
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238 <> a :View; :table [
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239 :primaryType :T1;
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240 :link
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241 [:predicate :pred1Link ],
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242 [:predicate :pred2Link ]
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243 ] .
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244 `);
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245 const layout = new Layout(vc);
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246 const lr = layout.plan(
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247 await n3Graph(`
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248 @prefix : <http://example.com/> .
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249 :g1 {
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250 :a a :T1; :color :red; :pred1Link :b; :pred2Link :c .
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251 :b a :T2; :size :big .
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252 :c a :T3; :bright 50 .
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253 }
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254 `)
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255 );
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256
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257 expect(lr.sections).toHaveLength(1); // no loose statements
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258 const section0 = lr.sections[0] as AlignedTable;
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259 expect(section0.rowHeaders).toEqual([EX("a")]);
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260 expect(section0.columnHeaders).toEqual([
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261 { rdfTypes: [EX("T1")], pred: EX("color") },
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262 { rdfTypes: [EX("T2")], pred: EX("size") },
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263 { rdfTypes: [EX("T3")], pred: EX("bright") },
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264 ]);
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265 });
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266 it("links rows to predicate that themselves are linked in", async () => {
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267 const vc = new ViewConfig();
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268 await vc.readFromGraph(`
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269 @prefix : <http://example.com/> .
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270
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271 <> a :View; :table [
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272 :primaryType :T1;
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273 :link
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274 [:predicate :pred1Link ],
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275 [:predicate :pred2Link ]
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276 ] .
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277 `);
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278 const layout = new Layout(vc);
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279 const lr = layout.plan(
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280 await n3Graph(`
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281 @prefix : <http://example.com/> .
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282 :g1 {
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283 :a a :T1; :color :red; :pred1Link :b .
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284 :b a :T2; :size :big; :pred2Link :c .
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285 :c a :T3; :bright 50 .
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286 }
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287 `)
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288 );
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289 console.log(JSON.stringify(lr.sections, null, " "));
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290
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291 expect(lr.sections).toHaveLength(1); // no loose statements
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292 const section0 = lr.sections[0] as AlignedTable;
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293 expect(section0.rowHeaders).toEqual([EX("a")]);
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294 expect(section0.columnHeaders).toEqual([
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295 { rdfTypes: [EX("T1")], pred: EX("color") },
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296 { rdfTypes: [EX("T2")], pred: EX("size") },
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297 { rdfTypes: [EX("T3")], pred: EX("bright") },
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298 ]);
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299 });
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300
114
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301 it.skip("makes a table out of ungrouped triples with the same type", async () => {});
88
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302 });