@specifai-net/appsync-template-tester
Version:
Unit test AppSync VTL resolvers, with popular frameworks such as Jest
90 lines • 11.5 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.JavaString = void 0;
const array_1 = require("./array");
class JavaString {
constructor(str) {
this.value = str;
}
concat(str) {
return new JavaString(this.value.concat(str.toString()));
}
contains(str) {
return this.value.indexOf(str.toString()) !== -1;
}
endsWith(suffix) {
return this.value.endsWith(suffix.toString());
}
equals(str) {
return this.value === str.toString();
}
indexOf(val, fromIndex = 0) {
return this.value.indexOf(val.toString(), fromIndex);
}
isEmpty() {
return this.value.length === 0;
}
lastIndexOf(val, fromIndex = Infinity) {
return this.value.lastIndexOf(val.toString(), fromIndex);
}
replace(find, replace) {
return this.replaceAll(find, replace);
}
replaceAll(find, replace) {
const rep = this.value.replace(new RegExp(find, "g"), replace);
return new JavaString(rep);
}
replaceFirst(find, replace) {
const rep = this.value.replace(new RegExp(find), replace);
return new JavaString(rep);
}
matches(regexString) {
const re = new RegExp(regexString.toString());
return this.value.match(re) !== null;
}
split(regexString, limit = undefined) {
// WARNING: this assumes Java and JavaScript regular expressions are identical, according to
// https://en.wikipedia.org/wiki/Comparison_of_regular_expression_engines#Language_features
// this should be the case except for look-behind which is not implemented in JavaScript
// java.util.String.split does not to include the separator in the result. JS does splice any capturing group
// in the regex into the result. To remove the groups from the result we need the count of capturing groups in
// the provided regex, the only way in JS seems to be via a match to an empty string
const testRe = new RegExp(`${regexString.toString()}|`);
const matches = "".match(testRe);
const ngroups = matches ? matches.length : 0; // actually num of groups plus one, ie "" and the (empty) groups
const re = new RegExp(regexString.toString());
const result = this.value
.split(re, limit)
.filter((v, ii) => !(ii % ngroups));
return new array_1.JavaArray(result, (e) => new JavaString(e.toString()));
}
startsWith(prefix, toffset = 0) {
return this.value.startsWith(prefix.toString(), toffset);
}
substring(beginIndex, endIndex = Infinity) {
return this.value.substring(beginIndex, endIndex);
}
toJSON() {
return this.toString();
}
toLowerCase() {
return new JavaString(this.value.toLowerCase());
}
toUpperCase() {
return new JavaString(this.value.toUpperCase());
}
toString() {
return this.value;
}
toIdString() {
return this.value;
}
trim() {
return new JavaString(this.value.trim());
}
length() {
return this.value && this.value.length;
}
}
exports.JavaString = JavaString;
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JS does splice any capturing group\n    // in the regex into the result. To remove the groups from the result we need the count of capturing groups in\n    // the provided regex, the only way in JS seems to be via a match to an empty string\n    const testRe = new RegExp(`${regexString.toString()}|`);\n    const matches = \"\".match(testRe);\n    const ngroups = matches ? matches.length : 0; // actually num of groups plus one, ie \"\" and the (empty) groups\n\n    const re = new RegExp(regexString.toString());\n\n    const result = this.value\n      .split(re, limit)\n      .filter((v, ii) => !(ii % ngroups));\n    return new JavaArray(result, (e: any) => new JavaString(e.toString()));\n  }\n\n  startsWith(prefix: any, toffset = 0) {\n    return this.value.startsWith(prefix.toString(), toffset);\n  }\n\n  substring(beginIndex: any, endIndex = Infinity) {\n    return this.value.substring(beginIndex, endIndex);\n  }\n\n  toJSON() {\n    return this.toString();\n  }\n\n  toLowerCase() {\n    return new JavaString(this.value.toLowerCase());\n  }\n\n  toUpperCase() {\n    return new JavaString(this.value.toUpperCase());\n  }\n\n  toString() {\n    return this.value;\n  }\n\n  toIdString() {\n    return this.value;\n  }\n\n  trim() {\n    return new JavaString(this.value.trim());\n  }\n\n  length() {\n    return this.value && this.value.length;\n  }\n}\n"]}