Add test for CLI tsconfig support (#823)

This helps confirm that the code change from #822 is safe, which it seems to be.
Previously, this code path was untested, but now that there are CLI integration
tests, it's not so bad to write a new one for this case.

integration-test/integration-tests.ts

@@ -127,9 +127,13 @@ describe("integration tests", () => {
       process.chdir(testDir);
       const testConfig = await readJSONFileContents("./test.json");
       await rm("./dist-actual", {recursive: true, force: true});
-      await execPromise(
-        `${__dirname}/../bin/sucrase ./src --out-dir ./dist-actual ${testConfig.cliOptions}`,
-      );
+      if (testConfig.disableAutomaticInputOutputDirs) {
+        await execPromise(`${__dirname}/../bin/sucrase ${testConfig.cliOptions}`);
+      } else {
+        await execPromise(
+          `${__dirname}/../bin/sucrase ./src --out-dir ./dist-actual ${testConfig.cliOptions}`,
+        );
+      }
       await assertDirectoriesEqual(resolve("./dist-actual"), resolve("./dist-expected"));
     });
   }

integration-test/test-cases/cli-cases/respects-tsconfig/test.json

@@ -0,0 +1,4 @@
+{
+  "cliOptions": "--project .",
+  "disableAutomaticInputOutputDirs": true
+}

integration-test/test-cases/cli-cases/respects-tsconfig/tsconfig.json

@@ -0,0 +1,6 @@
+{
+  "include": ["src/*[!-test].ts"],
+  "compilerOptions": {
+    "outDir": "dist-actual"
+  }
+}