squash! test: unit tests for the cli (#459) (#469)

fixing theme resolution on node after v10

lib/render-html.js

@@ -1,26 +1,32 @@
-import path from 'path';
+const tryResolve = (...args) => {
+  try {
+    return require.resolve(...args);
+  } catch (err) {
+    return false;
+  }
+};
 
 export default async ({ resume, themePath }) => {
   const cwd = process.cwd();
-  let resolvedThemePath = themePath;
-  try {
-    if (themePath[0] === '.') {
-      resolvedThemePath = path.join(process.cwd(), themePath, 'index.js');
-    } else {
-      try {
-        resolvedThemePath = require.resolve(themePath, {
-          paths: process.cwd(),
-        });
-      } catch (err) {
-        resolvedThemePath = require.resolve(`jsonresume-theme-${themePath}`, {
-          paths: process.cwd(),
-        });
-      }
-    }
-  } catch (err) {
-    throw new Error(`Theme ${themePath} could not be resolved from ${cwd}`);
+  let path;
+  if (themePath[0] === '.') {
+    path = tryResolve(path.join(cwd, themePath), { paths: [cwd] });
+    throw new Error(
+      `Theme ${themePath} could not be resolved relative to ${cwd}`,
+    );
+  }
+  if (!path) {
+    path = tryResolve(themePath, { paths: [cwd] });
+  }
+  if (!path && /^[a-z0-9]/i.test(path)) {
+    path = tryResolve(`jsonresume-theme-${themePath}`, { paths: [cwd] });
+  }
+  if (!path) {
+    throw new Error(
+      `theme path ${themePath} could not be resolved from current working directory`,
+    );
   }
-  const theme = require(resolvedThemePath);
+  const theme = require(path);
   if (typeof theme?.render !== 'function') {
     throw new Error('theme.render is not a function');
   }