chainable: setup test file

docs/roadmap.md

@@ -1,9 +1,32 @@
 ### Roadmap
 
-- [ ] Add a custom matcher protocol data structures could implement to make them matchable.
-- [ ] Add a native regex support.
+- [ ] chainable methods
 
-- [ ] (Maybe) add an iterator protocol to `P.array` to be usable as a variadic tuple pattern. Example of using `P.array`:
+  - string
+  - `P.string.includes('str')`
+  - `P.string.startsWith('str')`
+  - `P.string.endsWith('str')`
+  - `P.string.regex('[a-z]+')`
+  - numbers
+  - `P.number.between(1, 10)`
+  - `P.number.lt(12)`
+  - `P.number.gt(12)`
+  - `P.number.gte(12)`
+  - `P.number.lte(12)`
+  - `P.number.int(12)`
+  - `P.number.finite`
+  - `P.number.positive`
+  - `P.number.negative`
+  - all
+  - `P.number.optional`
+  - `P.string.optional`
+  - `P.number.select()`
+  - `P.string.select()`
+  - `P.number.optional.select()`
+  - `P.string.optional.select()`
+
+- [x] Add a custom matcher protocol data structures could implement to make them matchable.
+- [x] (Maybe) add an iterator protocol to `P.array` to be usable as a variadic tuple pattern. Example of using `P.array`:
 
 ```ts
 const reverse = <T>(xs: T[]): T[] => {

tests/chainable.test.ts

@@ -0,0 +1,27 @@
+describe('chainable methods', () => {
+  describe('string', () => {
+    it(`P.string.includes('str')`, () => {});
+    it(`P.string.startsWith('str')`, () => {});
+    it(`P.string.endsWith('str')`, () => {});
+    it(`P.string.regex('[a-z]+')`, () => {});
+  });
+  describe('number', () => {
+    it(`P.number.between(1, 10)`, () => {});
+    it(`P.number.lt(12)`, () => {});
+    it(`P.number.gt(12)`, () => {});
+    it(`P.number.gte(12)`, () => {});
+    it(`P.number.lte(12)`, () => {});
+    it(`P.number.int(12)`, () => {});
+    it(`P.number.finite(12)`, () => {});
+    it(`P.number.positive(12)`, () => {});
+    it(`P.number.negative(12)`, () => {});
+  });
+  describe('all', () => {
+    it(`P.number.optional`, () => {});
+    it(`P.string.optional`, () => {});
+    it(`P.number.select()`, () => {});
+    it(`P.string.select()`, () => {});
+    it(`P.number.optional.select()`, () => {});
+    it(`P.string.optional.select()`, () => {});
+  });
+});