complete basic structures

test/.eslintrc.js

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+module.exports = {
+  env: {
+    commonjs: true,
+    es6: true,
+    node: true
+  },
+  extends: [
+    '@scode/eslint-config-ts'
+  ],
+  globals: {
+    Atomics: 'readonly',
+    SharedArrayBuffer: 'readonly'
+  },
+  parserOptions: {
+    ecmaVersion: 2018
+  },
+  rules: {
+    'node/no-unpublished-import': 'off'
+  }
+}

test/Edge.ts

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+import test from 'ava';
+import { Edge } from '../lib';
+
+test ('serialize', (t) => {
+  const e = new Edge ('foo', 'bar');
+  const serialized = e.toString ();
+  t.is (serialized, 'foo -> bar');
+});

test/Graph.ts

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+import fs from 'fs';
+import test from 'ava';
+import { Graph, Node } from '../lib';
+
+const result = `subgraph cluster_bar_foo {
+  subgraph cluster_bar_foo_baz {
+
+    bar_foo_baz_asd
+
+  }
+
+  bar_foo_baz
+  bar_foo_foo
+
+  bar_foo_foo -> bar_foo_baz
+}`;
+
+test ('serialize', (t) => {
+  const g = new Graph ('foo', 'bar');
+
+  t.is (g.full_name, 'bar_foo');
+  g.add_graph (() => {
+    const graph = new Graph ('baz');
+    graph.add_node (() => new Node ('asd'));
+    return graph;
+  });
+
+  g.add_node (() => new Node ('baz'));
+  g.add_node (() => new Node ('foo'));
+  g.add_edge ('foo', 'baz');
+
+  const serialized = g.toString ();
+
+  t.is (serialized, result);
+});

test/Node.ts

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+import test from 'ava';
+import { Node } from '../lib/Node';
+
+const serialized_simple = 'bar_foo [label=<baz>]';
+const serialized_table = `bar_foo [label=<<table>
+  <tr><td>foo</td><td>bar</td><td>baz</td></tr>
+  <tr><td>bar</td><td>baz</td><td>foo</td></tr>
+  <tr><td>baz</td><td>foo</td><td>bar</td></tr>
+</table>>]`;
+
+test ('serialize simple', (t) => {
+  const g = new Node ('foo', 'bar', 'baz');
+
+  const serialized = g.toString ();
+  t.is (g.full_name, 'bar_foo');
+  t.is (serialized, serialized_simple);
+});
+
+test ('serialize table', (t) => {
+  const g = new Node ('foo', 'bar', 'baz');
+
+  g.table_contents = [
+    [
+      'foo',
+      'bar',
+      'baz'
+    ],
+    [
+      'bar',
+      'baz',
+      'foo'
+    ],
+    [
+      'baz',
+      'foo',
+      'bar'
+    ]
+  ];
+  g.is_table = true;
+
+  const serialized = g.toString ();
+  t.is (g.full_name, 'bar_foo');
+  t.is (serialized, serialized_table);
+});