1 files changed, 207 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/unittests/preprocessor.spec.ts b/dom/webgpu/tests/cts/checkout/src/unittests/preprocessor.spec.ts
new file mode 100644
index 0000000000..040629355d
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/unittests/preprocessor.spec.ts
@@ -0,0 +1,207 @@
+export const description = `
+Test for "pp" preprocessor.
+`;
+
+import { makeTestGroup } from '../common/framework/test_group.js';
+import { pp } from '../common/util/preprocessor.js';
+
+import { UnitTest } from './unit_test.js';
+
+class F extends UnitTest {
+  test(act: string, exp: string): void {
+    this.expect(act === exp, 'got: ' + act.replace('\n', '⏎'));
+  }
+}
+
+export const g = makeTestGroup(F);
+
+g.test('empty').fn(t => {
+  t.test(pp``, '');
+  t.test(pp`\n`, '\n');
+  t.test(pp`\n\n`, '\n\n');
+});
+
+g.test('plain').fn(t => {
+  t.test(pp`a`, 'a');
+  t.test(pp`\na`, '\na');
+  t.test(pp`\n\na`, '\n\na');
+  t.test(pp`\na\n`, '\na\n');
+  t.test(pp`a\n\n`, 'a\n\n');
+});
+
+g.test('substitutions,1').fn(t => {
+  const act = pp`a ${3} b`;
+  const exp = 'a 3 b';
+  t.test(act, exp);
+});
+
+g.test('substitutions,2').fn(t => {
+  const act = pp`a ${'x'}`;
+  const exp = 'a x';
+  t.test(act, exp);
+});
+
+g.test('substitutions,3').fn(t => {
+  const act = pp`a ${'x'} b`;
+  const exp = 'a x b';
+  t.test(act, exp);
+});
+
+g.test('substitutions,4').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}
+${'x'}
+${pp._endif}
+b`;
+  const exp = '\na\n\nb';
+  t.test(act, exp);
+});
+
+g.test('if,true').fn(t => {
+  const act = pp`
+a
+${pp._if(true)}c${pp._endif}
+d
+`;
+  const exp = '\na\nc\nd\n';
+  t.test(act, exp);
+});
+
+g.test('if,false').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}c${pp._endif}
+d
+`;
+  const exp = '\na\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('else,1').fn(t => {
+  const act = pp`
+a
+${pp._if(true)}
+b
+${pp._else}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\nb\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('else,2').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}
+b
+${pp._else}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\nc\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('elif,1').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}
+b
+${pp._elif(true)}
+e
+${pp._else}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\ne\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('elif,2').fn(t => {
+  const act = pp`
+a
+${pp._if(true)}
+b
+${pp._elif(true)}
+e
+${pp._else}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\nb\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('nested,1').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}
+b
+${pp.__if(true)}
+e
+${pp.__endif}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('nested,2').fn(t => {
+  const act = pp`
+a
+${pp._if(false)}
+b
+${pp._else}
+h
+${pp.__if(false)}
+e
+${pp.__elif(true)}
+f
+${pp.__else}
+g
+${pp.__endif}
+c
+${pp._endif}
+d
+`;
+  const exp = '\na\n\nh\n\nf\n\nc\n\nd\n';
+  t.test(act, exp);
+});
+
+g.test('errors,pass').fn(() => {
+  pp`${pp._if(true)}${pp._endif}`;
+  pp`${pp._if(true)}${pp._else}${pp._endif}`;
+  pp`${pp._if(true)}${pp.__if(true)}${pp.__endif}${pp._endif}`;
+});
+
+g.test('errors,fail').fn(t => {
+  const e = (fn: () => void) => t.shouldThrow('Error', fn);
+  e(() => pp`${pp._if(true)}`);
+  e(() => pp`${pp._elif(true)}`);
+  e(() => pp`${pp._else}`);
+  e(() => pp`${pp._endif}`);
+  e(() => pp`${pp.__if(true)}`);
+  e(() => pp`${pp.__elif(true)}`);
+  e(() => pp`${pp.__else}`);
+  e(() => pp`${pp.__endif}`);
+
+  e(() => pp`${pp._if(true)}${pp._elif(true)}`);
+  e(() => pp`${pp._if(true)}${pp._elif(true)}${pp._else}`);
+  e(() => pp`${pp._if(true)}${pp._else}`);
+  e(() => pp`${pp._else}${pp._endif}`);
+
+  e(() => pp`${pp._if(true)}${pp.__endif}`);
+  e(() => pp`${pp.__if(true)}${pp.__endif}`);
+  e(() => pp`${pp.__if(true)}${pp._endif}`);
+
+  e(() => pp`${pp._if(true)}${pp._else}${pp._else}${pp._endif}`);
+  e(() => pp`${pp._if(true)}${pp.__if(true)}${pp.__else}${pp.__else}${pp.__endif}${pp._endif}`);
+});