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/*
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 * preview-initial-path.test.ts
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 *
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 * Tests that previewInitialPath computes the correct browse URL path
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 * for different project types. Regression test for #14298.
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 *
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 * Copyright (C) 2026 Posit Software, PBC
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 */
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import { unitTest } from "../test.ts";
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import { assertEquals } from "testing/asserts";
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import { join } from "../../src/deno_ral/path.ts";
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import { previewInitialPath } from "../../src/command/preview/preview.ts";
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import { createMockProjectContext } from "./project/utils.ts";
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// deno-lint-ignore require-await
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unitTest("previewInitialPath - single file returns empty path (#14298)", async () => {
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  const project = createMockProjectContext({ isSingleFile: true });
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  const outputFile = join(project.dir, "hello.html");
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  const result = previewInitialPath(outputFile, project);
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  assertEquals(result, "", "Single-file preview should use root path, not filename");
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  project.cleanup();
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});
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// deno-lint-ignore require-await
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unitTest("previewInitialPath - project file returns relative path", async () => {
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  const project = createMockProjectContext();
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  const outputFile = join(project.dir, "chapter.html");
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  const result = previewInitialPath(outputFile, project);
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  assertEquals(result, "chapter.html", "Project preview should include relative path");
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  project.cleanup();
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});
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// deno-lint-ignore require-await
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unitTest("previewInitialPath - project subdir returns relative path", async () => {
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  const project = createMockProjectContext();
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  const outputFile = join(project.dir, "pages", "about.html");
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  const result = previewInitialPath(outputFile, project);
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  assertEquals(result, "pages/about.html", "Project preview should include subdirectory path");
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  project.cleanup();
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});
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// deno-lint-ignore require-await
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unitTest("previewInitialPath - undefined project returns empty path", async () => {
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  const result = previewInitialPath("/tmp/hello.html", undefined);
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  assertEquals(result, "", "No project should use root path");
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});
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