added calc subtraction test

Author: jleeson

test/index.test.js

@@ -26,7 +26,7 @@ const { dependencies } = JSON.parse(fs.readFileSync(new URL("../package.json", i
 
  assert.strictEqual(source.includes(`import "./index.css"`), false, "the css import should be removed.");
  assert.strictEqual(style.includes(`.element{box-shadow:0px 16px 32px -10px rgba(17,24,38,0.1);}`), true, "negative values should be minified correctly.");
- assert.strictEqual(style.includes(`.test{top:calc(var(--variable-name));top: calc(var(--variable-name) + 10px);top: calc((10px + var(--variable-name)) * 2);}`), true, "nested parentheses should be minfied correctly.");
+ assert.strictEqual(style.includes(`.test{top:calc(var(--variable-name));top: calc(var(--variable-name) + 10px);top: calc(var(--variable-name) - 10px);top: calc((10px + var(--variable-name)) * 2);}`), true, "nested parentheses should be minfied correctly.");
  assert.strictEqual(style.includes(`:is(.a-very-long-class-name,.b-very-long-class-name,.c-very-long-class-name) textarea{margin:0;}`), true, "new lines should be minified correctly.");
  assert.strictEqual(style.includes(`html[style*="--color-scheme: dark"]{color:blue;}`), true, "spaces should be preserved in css selectors.");
  assert.strictEqual(style.includes(`.bg-image-relative{background-image:url("./assets/background-updated.jpg");`), true, "relative asset paths should be updated.");

test/src/index.css

@@ -9,6 +9,7 @@
 .test {
  top: calc(var(--variable-name));
  top: calc(var(--variable-name) + 10px);
+ top: calc(var(--variable-name) - 10px);
  top: calc((10px + var(--variable-name)) * 2);
 }