wip: migrate to bun

test/flow-methods.spec.ts

@@ -0,0 +1,51 @@
+import assert from 'node:assert';
+import lodashStable from 'lodash';
+import { add, square, noop, identity } from './utils';
+import head from '../src/head';
+import map from '../src/map';
+import uniq from '../src/uniq';
+import flow from '../src/flow';
+import flowRight from '../src/flowRight';
+
+const methods = {
+    flow,
+    flowRight,
+};
+
+describe('flow methods', () => {
+    lodashStable.each(['flow', 'flowRight'], (methodName) => {
+        const func = methods[methodName],
+            isFlow = methodName == 'flow';
+
+        it(`\`_.${methodName}\` should supply each function with the return value of the previous`, () => {
+            const fixed = function (n) {
+                    return n.toFixed(1);
+                },
+                combined = isFlow ? func(add, square, fixed) : func(fixed, square, add);
+
+            assert.strictEqual(combined(1, 2), '9.0');
+        });
+
+        it(`\`_.${methodName}\` should return a new function`, () => {
+            assert.notStrictEqual(func(noop), noop);
+        });
+
+        it(`\`_.${methodName}\` should work with a curried function and \`_.head\``, () => {
+            const curried = lodashStable.curry(identity);
+
+            const combined = isFlow ? func(head, curried) : func(curried, head);
+
+            assert.strictEqual(combined([1]), 1);
+        });
+
+        it(`\`_.${methodName}\` should work with curried functions with placeholders`, () => {
+            const curried = lodashStable.curry(lodashStable.ary(map, 2), 2),
+                getProp = curried(curried.placeholder, (value) => value.a),
+                objects = [{ a: 1 }, { a: 2 }, { a: 1 }];
+
+            const combined = isFlow ? func(getProp, uniq) : func(uniq, getProp);
+
+            assert.deepStrictEqual(combined(objects), [1, 2]);
+        });
+    });
+});