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import { stringify } from "yaml";
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export interface TapWriter {
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version(): void;
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plan(n: number): void;
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fail(e: any): void;
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ok(msg: string): void;
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skip(msg: string): void;
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bailOut(msg: string): void;
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comment(msg: string): void;
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yaml(data: any): void;
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end(): void;
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}
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enum TapState {
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Init,
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VersionWritten,
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Ready,
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ReadyWithoutPlan,
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End
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}
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export abstract class AbstractTapWriter implements TapWriter {
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private _state = TapState.Init;
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private _version = 13;
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private _testIndex = 1;
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private _moveVersion() {
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switch (this._state) {
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case TapState.Init:
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this._state = TapState.VersionWritten;
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break;
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default:
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throw new Error("Invalid operation");
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}
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}
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private _movePlan() {
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switch (this._state) {
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case TapState.Init:
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case TapState.VersionWritten:
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this._state = TapState.Ready;
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break;
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case TapState.ReadyWithoutPlan:
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this._state = TapState.End;
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break;
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default:
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throw new Error("Invalid operation");
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}
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}
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private _moveTestResult() {
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switch (this._state) {
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case TapState.Init:
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case TapState.VersionWritten:
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this._state = TapState.ReadyWithoutPlan;
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break;
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case TapState.Ready:
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case TapState.ReadyWithoutPlan:
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break;
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default:
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throw new Error("Invalid operation");
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}
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}
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private _moveEnd() {
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switch (this._state) {
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case TapState.End:
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throw new Error("Invalid operation");
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default:
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this._state = TapState.End;
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}
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}
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private _moveDiag() {
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switch (this._state) {
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case TapState.Init:
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case TapState.VersionWritten:
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this._state = TapState.ReadyWithoutPlan;
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break;
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case TapState.Ready:
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case TapState.ReadyWithoutPlan:
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break;
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default:
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throw new Error("Invalid operation");
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}
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}
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version() {
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this._moveVersion();
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this._writeLine(`TAP version ${this._version}`);
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}
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plan(n: number) {
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this._movePlan();
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this._writeLine(`1..${n}`);
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}
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fail(e: any) {
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this._moveTestResult();
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this._writeText(`not ok ${this._testIndex} ${e}`);
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this._testIndex++;
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}
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ok(msg: string) {
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this._moveTestResult();
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this._writeText(`ok ${this._testIndex} ${msg}`);
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this._testIndex++;
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}
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skip(msg: string) {
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this._moveTestResult();
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this._writeText(`ok ${this._testIndex} # SKIPPED: ${msg}`);
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this._testIndex++;
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}
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bailOut(msg: string) {
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this._moveEnd();
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this._writeText(`Bail out! ${msg}`);
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}
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comment(msg: string) {
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this._moveDiag();
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this._writeText(`# ${msg}`);
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}
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yaml(data: any) {
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this._moveDiag();
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this._writeLine(" ---");
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stringify(data).split("\r\n?").forEach(line => this._writeLine(" " + line));
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this._writeLine(" ...");
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}
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end() {
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this._moveEnd();
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}
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private _writeText(text: string) {
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text.split("\r\n?").forEach((line, i) => this._writeLine(i ? "# " + line : line));
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}
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abstract _writeLine(text: string): void;
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}
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