Initial tests set up (#10)

* Begin debugging

* Initial tests set up

This adds tests using uvu (we can switch if people want) and restructures things a bit so that it's easier to test.

Like in snowpack you set up a little project. In our tests you can say:

```js
const result = await runtime.load('/blog/hello-world')
```

And analyze the result. I included a `test-helpers.js` which has a function that will turn HTML into a cheerio instance, for inspecting the result HTML.

* Add CI

* Remove extra console logs

* Formatting

1 files changed, 18 insertions, 22 deletions

diff --git a/src/compiler/utils/get_code_frame.ts b/src/compiler/utils/get_code_frame.ts
index 1097f5b3d..a0c296672 100644
--- a/src/compiler/utils/get_code_frame.ts
+++ b/src/compiler/utils/get_code_frame.ts
@@ -1,31 +1,27 @@
 function tabs_to_spaces(str: string) {
-	return str.replace(/^\t+/, match => match.split('\t').join('  '));
+  return str.replace(/^\t+/, (match) => match.split('\t').join('  '));
 }
 
-export default function get_code_frame(
-	source: string,
-	line: number,
-	column: number
-) {
-	const lines = source.split('\n');
+export default function get_code_frame(source: string, line: number, column: number) {
+  const lines = source.split('\n');
 
-	const frame_start = Math.max(0, line - 2);
-	const frame_end = Math.min(line + 3, lines.length);
+  const frame_start = Math.max(0, line - 2);
+  const frame_end = Math.min(line + 3, lines.length);
 
-	const digits = String(frame_end + 1).length;
+  const digits = String(frame_end + 1).length;
 
-	return lines
-		.slice(frame_start, frame_end)
-		.map((str, i) => {
-			const isErrorLine = frame_start + i === line;
-			const line_num = String(i + frame_start + 1).padStart(digits, ' ');
+  return lines
+    .slice(frame_start, frame_end)
+    .map((str, i) => {
+      const isErrorLine = frame_start + i === line;
+      const line_num = String(i + frame_start + 1).padStart(digits, ' ');
 
-			if (isErrorLine) {
-				const indicator = ' '.repeat(digits + 2 + tabs_to_spaces(str.slice(0, column)).length) + '^';
-				return `${line_num}: ${tabs_to_spaces(str)}\n${indicator}`;
-			}
+      if (isErrorLine) {
+        const indicator = ' '.repeat(digits + 2 + tabs_to_spaces(str.slice(0, column)).length) + '^';
+        return `${line_num}: ${tabs_to_spaces(str)}\n${indicator}`;
+      }
 
-			return `${line_num}: ${tabs_to_spaces(str)}`;
-		})
-		.join('\n');
+      return `${line_num}: ${tabs_to_spaces(str)}`;
+    })
+    .join('\n');
 }