#478 API crashes on 2nd render() call

- add e2e test for (re)rendering by api
mermaid-js · Oct 15, 2019 · d743838 · d743838
1 parent 069b485
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diff --git a/cypress/integration/other/rerender.spec.js b/cypress/integration/other/rerender.spec.js
@@ -0,0 +1,16 @@
+/* eslint-env jest */
+describe('Rerendering', () => {
+
+    it('should be able to render and rerender a graph via API', () => {
+      const url = 'http://localhost:9000/rerender.html';
+      cy.viewport(1440, 1024);
+      cy.visit(url);
+      cy.get('#graph #A').should('have.text', 'XMas');
+
+      cy.get('body')
+        .find('#rerender')
+        .click({ force: true });
+
+      cy.get('#graph #A').should('have.text', 'Saturday');
+    });
+});
diff --git a/cypress/platform/rerender.html b/cypress/platform/rerender.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta http-equiv="X-UA-Compatible" content="IE=edge">
+  <title>Mermaid Quick Test Page</title>
+  <link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgo=">
+</head>
+<body>
+<div id="graph">
+</div>
+
+  <script src="./mermaid.js"></script>
+  <script>
+
+    mermaid.init({ startOnLoad: false });
+    mermaid.mermaidAPI.initialize();
+
+    rerender('XMas');
+
+    function rerender(text) {
+      var graphText = `graph TD
+        A[${text}] -->|Get money| B(Go shopping)`
+      var graph = mermaid.mermaidAPI.render('id', graphText);
+      console.log('\x1b[35m%s\x1b[0m', '>> graph', graph)
+      document.getElementById('graph').innerHTML=graph;
+    }
+
+  </script>
+  <button id="rerender" onclick="rerender('Saturday')">Rerender</button>
+
+</body>
+</html>