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lollekoPerryvw
lolleko
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Perryvw
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Improves lua tests & Tests for "for loops" (#21)
* Moved Test functionality to util module & Added tests for loops * Added test "forin[Array]" & Fixed fail from previous PR Previous PR changed for in ipairs/pairs to \"pairs\" instead of pairs * Added Json lib for lua <-> js communication * Removed json decode from json lib
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-124
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10 files changed

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‎.gitignore‎

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@@ -1,6 +1,7 @@
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*.js
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node_modules/
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*.lua
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!json.lua
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!dist/*.js
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!dist/lualib/*.lua
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‎dist/Transpiler.js‎

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@@ -246,11 +246,11 @@ var LuaTranspiler = /** @class */ (function () {
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var identifier = variable.name;
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// Transpile expression
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var expression = this.transpileExpression(node.expression);
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// Use ipairs for array types, pairs otherwise
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var isArray = TSHelper_1.TSHelper.isArrayType(this.checker.getTypeAtLocation(node.expression));
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var pairs = isArray ? "ipairs" : "pairs";
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if (TSHelper_1.TSHelper.isArrayType(this.checker.getTypeAtLocation(node.expression))) {
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throw new TranspileError("Iterating over arrays with 'for in' is not allowed.", node);
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}
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// Make header
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var result = this.indent + ("for " + identifier.escapedText + ", _ in " + pairs + "(" + expression + ") do\n");
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var result = this.indent + ("for " + identifier.escapedText + ", _ in pairs(" + expression + ") do\n");
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// For body
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this.pushIndent();
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result += this.transpileStatement(node.statement);
@@ -561,6 +561,8 @@ var LuaTranspiler = /** @class */ (function () {
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return "TS_slice(" + caller + ", " + params + ")";
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case "splice":
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return "TS_splice(" + caller + ", " + params + ")";
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case "join":
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return "table.concat(" + caller + ", " + params + ")";
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default:
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throw new TranspileError("Unsupported array function: " + expression.name.escapedText, node);
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}

‎package-lock.json‎

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‎package.json‎

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@@ -9,6 +9,7 @@
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"coverage": "nyc --reporter=lcov npm test && nyc report"
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},
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"devDependencies": {
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"deep-equal": "^1.0.1",
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"nyc": "^11.4.1"
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}
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}

‎src/Transpiler.ts‎

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@@ -274,7 +274,7 @@ export class LuaTranspiler {
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}
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// Make header
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let result = this.indent + `for ${identifier.escapedText}, _ in "pairs"(${expression}) do\n`;
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let result = this.indent + `for ${identifier.escapedText}, _ in pairs(${expression}) do\n`;
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// For body
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this.pushIndent();

‎test/integration/lua/loops.spec.ts‎

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@@ -0,0 +1,83 @@
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import { Expect, Test, TestCase } from "alsatian";
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import * as util from "../../src/util"
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const deepEqual = require('deep-equal')
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export class LuaLoopTests {
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@TestCase([0, 1, 2, 3], [1, 2, 3, 4])
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@Test("for")
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public for<T>(inp: T[], expected: T[]) {
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// Transpile
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let lua = util.transpileString(
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`let arrTest = ${JSON.stringify(inp)};
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for (let i = 0; i < arrTest.length; ++i) {
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arrTest[i] = arrTest[i] + 1;
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}
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return JSONStringify(arrTest);`
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, util.dummyTypes.Array
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);
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// Execute
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let result = util.executeLua(lua);
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// Assert
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Expect(result).toBe(JSON.stringify(expected));
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}
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@TestCase({ ['test1']: 0, ['test2']: 1, ['test3']: 2 }, { ['test1']: 1, ['test2']: 2, ['test3']: 3 })
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@Test("forin[Object]")
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public forinObject<T>(inp: any, expected: any) {
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// Transpile
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let lua = util.transpileString(
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`let objTest = ${JSON.stringify(inp)};
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for (let key in objTest) {
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objTest[key] = objTest[key] + 1;
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}
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return JSONStringify(objTest);`
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, util.dummyTypes.Object
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);
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// Execute
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let result = util.executeLua(lua);
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// Assert
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Expect(deepEqual(JSON.parse(result), expected)).toBe(true);
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}
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@TestCase([1,2,3])
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@Test("forin[Array]")
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public forinArray<T>(inp: T[]) {
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// Transpile & Assert
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Expect(() => {
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let lua = util.transpileString(
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`let arrTest = ${JSON.stringify(inp)};
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for (let key in arrTest) {
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arrTest[key]++;
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}`
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, util.dummyTypes.Array
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);
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}).toThrowError(Error, "Iterating over arrays with 'for in' is not allowed.");
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}
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@TestCase([0,1,2], [1,2,3])
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@Test("forof")
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public forof<T>(inp: any, expected: any) {
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// Transpile
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let lua = util.transpileString(
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`let objTest = ${JSON.stringify(inp)};
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let arrResultTest = {};
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for (let value of objTest) {
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arrResultTest.push(value + 1)
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}
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return JSONStringify(arrResultTest);`
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, util.dummyTypes.Array
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);
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// Execute
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let result = util.executeLua(lua);
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// Assert
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Expect(result).toBe(JSON.stringify(expected));
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}
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}

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