/
test.ts
195 lines (153 loc) · 4.98 KB
/
test.ts
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import { assert } from "https://deno.land/x/tsafe@v1.6.6/assert.ts";
import { every, allEqualsTo, allEquals, removeDuplicates, partition, allUniq, and, count, includes, or, sameAs, diff } from "./index.ts";
import { arrEvery } from "./every.ts";
import { arrPartition } from "./partition.ts";
import { same } from "../inDepth/same.ts";
assert(["foo", "foo", "foo"].reduce(...every<string>(e => e === "foo")) === true);
assert(["foo", "foo", "bar"].reduce(...every<string>(e => e === "foo")) === false);
assert(arrEvery([], (e: string) => e === "foo") === true);
assert([].reduce(...every<string>(e => e === "foo")) === true);
assert(["foo", "foo", "foo"].reduce(...allEqualsTo("foo")) === true);
assert(["foo"].reduce(...allEqualsTo("foo")) === true);
assert([].reduce(...allEqualsTo("foo")) === true);
assert(["foo", "bar", "foo"].reduce(...allEqualsTo("foo")) === false);
assert(["bar", "bar", "foo"].reduce(...allEqualsTo("foo")) === false);
assert(["bar"].reduce(...allEqualsTo("foo")) === false);
assert(
["foo", "foo_", "foo__"].reduce(
...allEqualsTo(
"foo",
(e1, to) => e1.startsWith(to))
) === true
);
assert(
["foo", "foo_", "foo__", "_foo"].reduce(
...allEqualsTo(
"foo",
(e1, to) => e1.startsWith(to)
)
) === false
);
assert(["foo", "foo"].reduce(...allEquals()) === true);
assert(["foo"].reduce(...allEquals()) === true);
assert([].reduce(...allEquals()) === true);
assert(["foo", "bar"].reduce(...allEquals()) === false);
assert(["foo", "bar", "baz"].reduce(...allEquals()) === false);
assert(
[
["a", "b", "c"],
["a", "b", "c"],
["a", "b", "c"]
].reduce(...allEquals<string[]>(
(e1, e2) => JSON.stringify(e1) === JSON.stringify(e2)
)) === true
);
const areSameStringArr = (arr1: string[], arr2: string[]) =>
JSON.stringify(arr1) === JSON.stringify(arr2)
;
assert(
[
["a", "b", "c"],
["a", "b", "c", "d"],
].reduce(...allEquals<string[]>(
areSameStringArr
)) === false
);
assert(
[["foo", "bar"], ["foo", "bar"]].reduce(
...allEquals<string[]>(
(e1, e2) => [e1, e2].map(e => JSON.stringify(e)).reduce(...allEquals())
)
) === true
);
assert(areSameStringArr(
["foo", "foo", "bar", "baz"].reduce(...removeDuplicates<string>()),
["foo", "bar", "baz"]
));
assert(areSameStringArr(
["foo", "foo"].reduce(...removeDuplicates<string>()),
["foo"]
));
assert(areSameStringArr(
["foo", "foo", "bar", "bar"].reduce(...removeDuplicates<string>()),
["foo", "bar"]
));
assert(areSameStringArr(
["foo"].reduce(...removeDuplicates<string>()),
["foo"]
));
assert(areSameStringArr(
[].reduce(...removeDuplicates<string>()),
[]
));
assert(
JSON.stringify(
[["a", "b", "c"], ["a", "b", "c", "d"], ["a", "b", "c"]].reduce(...removeDuplicates<string[]>(areSameStringArr))
)
===
JSON.stringify(
[["a", "b", "c"], ["a", "b", "c", "d"]]
)
);
{
const [arr1, arr2] = (["FOO", "BAR", "FOO"] as const).reduce(...partition((e: "FOO" | "BAR"): e is "BAR" => e === "BAR"));
assert(areSameStringArr(arr1, ["BAR"]));
assert(areSameStringArr(arr2, ["FOO", "FOO"]));
}
{
const [arr1, arr2] = arrPartition(["FOO", "BAR", "FOO"] as const, (e): e is "BAR" => e === "BAR");
assert(areSameStringArr(arr1, ["BAR"]));
assert(areSameStringArr(arr2, ["FOO", "FOO"]));
}
assert(["foo", "bar", "baz"].reduce(...allUniq()) === true);
assert([].reduce(...allUniq()) === true);
assert(["foo", "bar", "foo"].reduce(...allUniq()) === false);
{
const check = (arr: string[]) => arr
.reduce(...and<string>([
arr => arr.length !== 0,
arr => arr.reduce(...allUniq()),
arr => !arr.reduce(...includes("me"))
]))
;
assert(check(["alice", "bob", "louis"]) === true);
assert(check([]) === false);
assert(check(["alice", "bob", "alice", "louis"]) === false);
assert(check(["alice", "bob", "louis", "me"]) === false);
}
assert(["foo", "bar", "baz", "hello"].reduce(...count<string>(e => e.startsWith("b"))) === 2);
assert(
[]
.reduce(...or([
arr => arr.length === 0,
arr => arr.length >= 3
])) === true
);
assert(
["a", "b", "c", "d"]
.reduce(...or([
arr => arr.length === 0,
arr => arr.length >= 3
])) === true
);
assert(
["a", "b"]
.reduce(...or([
arr => arr.length === 0,
arr => arr.length >= 3
])) === false
);
assert(["a", "b"].reduce(...sameAs<string>(["a", "b"])) === true);
assert(["a", "b"].reduce(...sameAs<string>(["a", "bc"])) === false);
assert(["a", "b"].reduce(...sameAs<string>(["a", "b", "c"])) === false);
assert(
same(
["bob", "alice"].reduce(...diff<string>(["bob", "louis"])),
{
"added": ["louis"],
"removed": ["alice"]
},
{ "takeIntoAccountArraysOrdering": false }
)
);
console.log("PASS reducers");