test: update tests

Author: djcsdy

test/git-utils.spec.ts

@@ -4,7 +4,8 @@ import {TestBed, readFixtures} from "./test-utils";
 import {
     getDiffForFile,
     resolveNearestGitDirectoryParent,
-    getModifiedFilenames
+    getModifiedFilenames,
+    index
 } from "../src/git-utils";
 
 const fixtures = readFixtures();
@@ -47,7 +48,7 @@ describe("git-utils", () => {
                     resolveNearestGitDirectoryParent(tmpFile.directoryPath),
                     tmpFile.path,
                     tmpFile.initialCommitSHA,
-                    tmpFile.updatedCommitSHA
+                    tmpFile.updatedCommitSHA ?? index
                 );
                 expect(diff).toMatchSnapshot();
             });

test/modified-file.spec.ts

@@ -2,7 +2,7 @@ import {TestBed, readFixtures} from "./test-utils";
 
 import {ModifiedFile} from "../src/modified-file";
 import {preciseFormatterPrettier} from "../src/precise-formatters/prettier";
-import {resolveNearestGitDirectoryParent} from "../src/git-utils";
+import {resolveNearestGitDirectoryParent, workingTree} from "../src/git-utils";
 
 const fixtures = readFixtures();
 let testBed: TestBed;
@@ -21,7 +21,7 @@ describe("ModifiedFile", () => {
                     fullPath: tmpFile.path,
                     gitDirectoryParent: resolveNearestGitDirectoryParent(tmpFile.directoryPath),
                     base: tmpFile.initialCommitSHA,
-                    head: tmpFile.updatedCommitSHA,
+                    head: tmpFile.updatedCommitSHA ?? workingTree,
                     selectedFormatter: preciseFormatterPrettier
                 });
                 expect(modifiedFile.isAlreadyFormatted()).toEqual(false);

test/utils.spec.ts

@@ -1,5 +1,5 @@
 import {TestBed, readFixtures} from "./test-utils";
-import {getDiffForFile, resolveNearestGitDirectoryParent} from "../src/git-utils";
+import {getDiffForFile, index, resolveNearestGitDirectoryParent} from "../src/git-utils";
 import {extractLineChangeData, calculateCharacterRangesFromLineChanges} from "../src/utils";
 
 const fixtures = readFixtures();
@@ -39,7 +39,7 @@ describe("utils", () => {
                     resolveNearestGitDirectoryParent(tmpFile.directoryPath),
                     tmpFile.path,
                     tmpFile.initialCommitSHA,
-                    tmpFile.updatedCommitSHA
+                    tmpFile.updatedCommitSHA ?? index
                 );
                 const lineChangeData = extractLineChangeData(diff);
                 expect(lineChangeData).toMatchSnapshot();
@@ -60,7 +60,7 @@ describe("utils", () => {
                     resolveNearestGitDirectoryParent(tmpFile.directoryPath),
                     tmpFile.path,
                     tmpFile.initialCommitSHA,
-                    tmpFile.updatedCommitSHA
+                    tmpFile.updatedCommitSHA ?? index
                 );
                 const lineChangeData = extractLineChangeData(diff);
                 [lf, crlf, cr].forEach(lineSeparator => {