Add tests

package.json

@@ -25,6 +25,10 @@
     "number-abbreviate": "^2.0.0"
   },
   "devDependencies": {
-    "jest": "^26.4.2"
-  }
+    "jest": "^26.4.2",
+    "pre-commit": "^1.2.2"
+  },
+  "pre-commit": [
+    "test"
+  ]
 }

src/utils/svg-writer.js

@@ -8,7 +8,7 @@ const writeSVG = function (folder,filename, svgString) {
       err,
       result
     ) {
-      if (err) console.log("error", err);
+      if (err) throw (err);
     });
   });
 };

tests/const/theme.test.js

@@ -0,0 +1,16 @@
+const Themes = require("../../src/const/theme");
+
+describe("Validate all theme", () => {
+  it("theme colors are match the color regex", () => {
+    const colorRegex = /^#[0-9A-Fa-f]{6}$/;
+    for (let themeName in Themes) {
+      let theme = Themes[themeName];
+      expect(theme.title_color).toMatch(colorRegex);
+      expect(theme.text_color).toMatch(colorRegex);
+      expect(theme.bg_color).toMatch(colorRegex);
+      expect(theme.stroke_color).toMatch(colorRegex);
+      expect(theme.icon_color).toMatch(colorRegex);
+      expect(theme.line_chart_color).toMatch(colorRegex);
+    }
+  });
+});

tests/utils/svg-writer.test.js

@@ -0,0 +1,13 @@
+const { writeSVG, outputPath } = require("../../src/utils/svg-writer");
+const fs = require("fs");
+
+describe("Test output function", () => {
+  it("test write svg can work", () => {
+    writeSVG("test", "write-svg", "work");
+    let content = fs.readFileSync(`${outputPath}test/write-svg.svg`, {
+      encoding: "utf8",
+      flag: "r",
+    });
+    expect(content).toEqual("work");
+  });
+});