diff --git a/packages/eval/evaluate.mjs b/packages/eval/evaluate.mjs
index 3db93b6d..b5cb851b 100644
--- a/packages/eval/evaluate.mjs
+++ b/packages/eval/evaluate.mjs
@@ -11,6 +11,7 @@ const { isPattern, Pattern } = strudel;
 
 export const extend = (...args) => {
   console.warn('@strudel.cycles/eval extend is deprecated, please use evalScope instead');
+  console.log('extend', args);
   Object.assign(globalThis, ...args);
 };
 
diff --git a/packages/eval/vitest/evaluate.test.mjs b/packages/eval/vitest/evaluate.test.mjs
new file mode 100644
index 00000000..c192becd
--- /dev/null
+++ b/packages/eval/vitest/evaluate.test.mjs
@@ -0,0 +1,37 @@
+/*
+evaluate.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/test/evaluate.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { describe, it, expect } from 'vitest';
+
+import { evaluate, extend, evalScope } from '../evaluate.mjs';
+import { mini } from '@strudel.cycles/mini';
+import * as strudel from '@strudel.cycles/core';
+
+const { fastcat, cat, slowcat, reify } = strudel;
+
+extend({ mini, cat, fastcat, slowcat, reify });
+// extend({ mini }, strudel); // TODO: this is not working
+// TODO: test evalScope
+// evalScope({ mini }, strudel);
+
+describe('evaluate', () => {
+  const ev = async (code) => (await evaluate(code)).pattern._firstCycleValues;
+  it('Should evaluate strudel functions', async () => {
+    expect(await ev('pure("c3")')).toEqual(['c3']);
+    expect(await ev('cat("c3")')).toEqual(['c3']);
+    expect(await ev('fastcat("c3", "d3")')).toEqual(['c3', 'd3']);
+    expect(await ev('slowcat("c3", "d3")')).toEqual(['c3']);
+  });
+  it('Should be extendable', async () => {
+    extend({ myFunction: (...x) => fastcat(...x) });
+    expect(await ev('myFunction("c3", "d3")')).toEqual(['c3', 'd3']);
+  });
+  it('Should evaluate simple double quoted mini notation', async () => {
+    expect(await ev('"c3"')).toEqual(['c3']);
+    expect(await ev('"c3 d3"')).toEqual(['c3', 'd3']);
+    expect(await ev('"<c3 d3>"')).toEqual(['c3']);
+  });
+});
diff --git a/packages/eval/vitest/shapeshifter.test.mjs b/packages/eval/vitest/shapeshifter.test.mjs
new file mode 100644
index 00000000..39d9d715
--- /dev/null
+++ b/packages/eval/vitest/shapeshifter.test.mjs
@@ -0,0 +1,19 @@
+/*
+shapeshifter.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/eval/test/shapeshifter.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { describe, it, expect } from 'vitest';
+import shapeshifter from '../shapeshifter.mjs';
+
+describe('shapeshifter', () => {
+  it('Should shift simple double quote string', () => {
+    expect(shapeshifter('"c3"')).toEqual('(async()=>{return mini("c3").withMiniLocation([1,0,15],[1,4,19])})()');
+  });
+  it('Should handle dynamic imports', () => {
+    expect(shapeshifter('const { default: foo } = await import(\'https://bar.com/foo.js\');"c3"')).toEqual(
+      '(async()=>{const{default:foo}=await import("https://bar.com/foo.js");return mini("c3").withMiniLocation([1,64,79],[1,68,83])})()',
+    );
+  });
+});
diff --git a/packages/mini/vitest/mini.test.mjs b/packages/mini/vitest/mini.test.mjs
new file mode 100644
index 00000000..88de3cee
--- /dev/null
+++ b/packages/mini/vitest/mini.test.mjs
@@ -0,0 +1,53 @@
+/*
+mini.test.mjs - <short description TODO>
+Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/mini/test/mini.test.mjs>
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+import { mini } from '../mini.mjs';
+import '@strudel.cycles/core/euclid.mjs';
+import { describe, it, expect } from 'vitest';
+
+describe('mini', () => {
+  const minV = (v) => mini(v)._firstCycleValues;
+  const minS = (v) => mini(v)._showFirstCycle;
+  it('supports single elements', () => {
+    expect(minV('a')).toEqual(['a']);
+  });
+  it('supports rest', () => {
+    expect(minV('~')).toEqual([]);
+  });
+  it('supports cat', () => {
+    expect(minS('a b')).toEqual(['a: 0 - 1/2', 'b: 1/2 - 1']);
+    expect(minS('a b c')).toEqual(['a: 0 - 1/3', 'b: 1/3 - 2/3', 'c: 2/3 - 1']);
+  });
+  it('supports slowcat', () => {
+    expect(minV('<a b>')).toEqual(['a']);
+  });
+  it('supports division', () => {
+    expect(minS('a/2')).toEqual(['a: 0 - 2']);
+    expect(minS('[c3 d3]/2')).toEqual(['c3: 0 - 1']);
+  });
+  it('supports multiplication', () => {
+    expect(minS('c3*2')).toEqual(['c3: 0 - 1/2', 'c3: 1/2 - 1']);
+    expect(minV('[c3 d3]*2')).toEqual(['c3', 'd3', 'c3', 'd3']);
+  });
+  it('supports brackets', () => {
+    expect(minS('c3 [d3 e3]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 1']);
+    expect(minS('c3 [d3 [e3 f3]]')).toEqual(['c3: 0 - 1/2', 'd3: 1/2 - 3/4', 'e3: 3/4 - 7/8', 'f3: 7/8 - 1']);
+  });
+  it('supports commas', () => {
+    expect(minS('c3,e3,g3')).toEqual(['c3: 0 - 1', 'e3: 0 - 1', 'g3: 0 - 1']);
+    expect(minS('[c3,e3,g3] f3')).toEqual(['c3: 0 - 1/2', 'e3: 0 - 1/2', 'g3: 0 - 1/2', 'f3: 1/2 - 1']);
+  });
+  it('supports elongation', () => {
+    expect(minS('a@3 b')).toEqual(['a: 0 - 3/4', 'b: 3/4 - 1']);
+    expect(minS('a@2 b@3')).toEqual(['a: 0 - 2/5', 'b: 2/5 - 1']);
+  });
+  it('supports replication', () => {
+    expect(minS('a!3 b')).toEqual(['a: 0 - 1/4', 'a: 1/4 - 1/2', 'a: 1/2 - 3/4', 'b: 3/4 - 1']);
+  });
+  it('supports euclidean rhythms', () => {
+    expect(minS('a(3, 8)')).toEqual(['a: 0 - 1/8', 'a: 3/8 - 1/2', 'a: 3/4 - 7/8']);
+  });
+});