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import { test, testModule, deepEqual } from './testutils.js'import Enumerable from '../linq.js'
testModule("Join");
test("join", function (){    var math = { yamada: 100, tanaka: 80, yoshida: 94 };    var english = { yamada: 73, yoshida: 26, tanaka: 99 };    let actual = Enumerable.from(math)        .join(english, "outer=>outer.key", "inner=>inner.key",            "o,i=>{Name:o.key,Math:o.value,English:i.value}")        .toArray();    let expected = [{ Name: "yamada", Math: 100, English: 73 },                    { Name: "tanaka", Math: 80, English: 99 },                    { Name: "yoshida", Math: 94, English: 26}];    deepEqual(actual, expected);
    actual = Enumerable.from(math)        .join(english, "outer=>outer", "inner=>inner",            "o,i=>{Name:o.key,Math:o.value,English:i.value}", "$.key")        .toArray();    expected = [{ Name: "yamada", Math: 100, English: 73 },                { Name: "tanaka", Math: 80, English: 99 },                { Name: "yoshida", Math: 94, English: 26}];    deepEqual(actual, expected);
    actual = Enumerable.from(math)        .join(english, "outer=>outer.key", "inner=>inner.key",            "(o,i)=>{return {Name:o.key, Math:o.value, English:i.value}}")        .toArray();
    expected = [{ Name: "yamada", Math: 100, English: 73 },                { Name: "tanaka", Math: 80, English: 99 },                { Name: "yoshida", Math: 94, English: 26}];
    deepEqual(actual, expected);
    actual = Enumerable.from(math)        .join(english, "outer=>outer.key", "inner=>inner.key",            "(o,i)=>{returnVal: o.key}")        .toArray();
    expected = [{ returnVal: "yamada" }, { returnVal: "tanaka" }, { returnVal: "yoshida"}];
    deepEqual(actual, expected);});
test("groupJoin", function (){    var array1 = [3, 3, 4, 5, 6];    var array2 = [2, 4, 5, 6, 6];    let actual = Enumerable.from(array1)        .groupJoin(array2, " i => i", " i => i",            function (outer, collection)            {                return {                    outer: outer,                    collection: collection.toArray()                }            })        .toArray();    let expected = [{ outer: 3, collection: [] },                    { outer: 3, collection: [] },                    { outer: 4, collection: [4] },                    { outer: 5, collection: [5] },                    { outer: 6, collection: [6, 6]}];    deepEqual(actual, expected);
    actual = Enumerable.from(array1)        .groupJoin(array2, " i => i", " i => i",            function (outer, collection)            {                return {                    outer: outer,                    collection: collection.toArray()                }            },            function (key) { return key % 2 == 0; })        .toArray();    expected = [{ outer: 3, collection: [5] },                { outer: 3, collection: [5] },                { outer: 4, collection: [2, 4, 6, 6] },                { outer: 5, collection: [5] },                { outer: 6, collection: [2, 4, 6, 6]}];    deepEqual(actual, expected);});
test("leftJoin", function (){    var math = { yamada: 100, tanaka: 80, yoshida: 94 };    var english = { yamada: 73, tanaka: 99 };    let actual = Enumerable.from(math)        .leftJoin(english, "outer=>outer.key", "inner=>inner.key",            (o,i) => ({Name:o.key,Math:o.value,English:i == null ? null : i.value}))        .toArray();    let expected = [{ Name: "yamada", Math: 100, English: 73 },                    { Name: "tanaka", Math: 80, English: 99 },                    { Name: "yoshida", Math: 94, English: null}];    deepEqual(actual, expected);
    actual = Enumerable.from(math)        .leftJoin(english, "outer=>outer", "inner=>inner",        (o,i) => ({Name:o.key,Math:o.value,English:i == null ? null : i.value}),         "$.key")        .toArray();    expected = [{ Name: "yamada", Math: 100, English: 73 },                { Name: "tanaka", Math: 80, English: 99 },                { Name: "yoshida", Math: 94, English: null}];    deepEqual(actual, expected);});