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babel-code-frame: Add tests

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This commit is contained in:
Simon Lydell
2016-03-23 18:38:07 +01:00
parent 6af4ba1937
commit d6b8e4c608
3 changed files with 104 additions and 6 deletions
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1
packages/babel-code-frame/package.json
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@@ -12,6 +12,7 @@
"chalk": "^1.1.0",
"esutils": "^2.0.2",
"js-tokens": "^1.0.1",
"line-numbers": "^0.2.0",
"repeating": "^1.1.3"
}
}

6
packages/babel-code-frame/src/index.js
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@@ -1,16 +1,12 @@
/* eslint indent: 0 */
/* eslint max-len: 0 */
//import lineNumbers from "line-numbers";
import lineNumbers from "line-numbers";
import repeating from "repeating";
import jsTokens from "js-tokens";
import esutils from "esutils";
import chalk from "chalk";
function lineNumbers(lines) {
return lines;
}
/**
* Chalk styles for token types.
*/

103
packages/babel-code-frame/test/index.js
View File

@@ -1,5 +1,106 @@
var buildCodeFrame = require("..");
var assert = require("assert");
var chalk = require("chalk");
var codeFrame = require("..");
suite("babel-code-frame", function () {
test("basic usage", function () {
const rawLines = [
"class Foo {",
" constructor()",
"};",
].join('\n');
assert.equal(codeFrame(rawLines, 2, 16), [
" 1 | class Foo {",
"> 2 | constructor()",
" | ^",
" 3 | };",
].join('\n'));
});
test("optional column number", function () {
const rawLines = [
"class Foo {",
" constructor()",
"};",
].join('\n');
assert.equal(codeFrame(rawLines, 2, null), [
" 1 | class Foo {",
"> 2 | constructor()",
" 3 | };",
].join("\n"));
});
test("optional column number", function () {
const rawLines = [
"class Foo {",
" constructor()",
"};",
].join("\n");
assert.equal(codeFrame(rawLines, 2, null), [
" 1 | class Foo {",
"> 2 | constructor()",
" 3 | };",
].join("\n"));
});
test("maximum context lines and padding", function () {
const rawLines = [
"/**",
" * Sums two numbers.",
" *",
" * @param a Number",
" * @param b Number",
" * @returns Number",
" */",
"",
"function sum(a, b) {",
" return a + b",
"}"
].join("\n");
assert.equal(codeFrame(rawLines, 7, 2), [
" 5 | * @param b Number",
" 6 | * @returns Number",
"> 7 | */",
" | ^",
" 8 | ",
" 9 | function sum(a, b) {",
" 10 | return a + b",
].join("\n"));
});
test("no unnecessary padding due to one-off errors", function () {
const rawLines = [
"/**",
" * Sums two numbers.",
" *",
" * @param a Number",
" * @param b Number",
" * @returns Number",
" */",
"",
"function sum(a, b) {",
" return a + b",
"}"
].join("\n");
assert.equal(codeFrame(rawLines, 6, 2), [
" 4 | * @param a Number",
" 5 | * @param b Number",
"> 6 | * @returns Number",
" | ^",
" 7 | */",
" 8 | ",
" 9 | function sum(a, b) {",
].join("\n"));
});
test("opts.highlightCode", function () {
const rawLines = "console.log('babel')";
const result = codeFrame(rawLines, 1, 9, {highlightCode: true})
const stripped = chalk.stripColor(result);
assert.ok(result.length > stripped.length);
assert.equal(stripped, [
"> 1 | console.log('babel')",
" | ^",
].join("\n"))
});
});