fix smart conflict

2024-07-27 19:09:42 +08:00
parent 254231e4bd
commit ae4e67f3b4
2 changed files with 236 additions and 6 deletions
@@ -1,5 +1,9 @@
 import { deepStrictEqual, rejects, throws } from "assert";
-import { getFileRenameForDup } from "../src/conflictLogic";
+import {
+  getFileRenameForDup,
+  threeWayMerge,
+  twoWayMerge,
+} from "../src/conflictLogic";

 describe("New name is generated", () => {
  it("should throw for empty file", async () => {
@@ -69,3 +73,224 @@ describe("New name is generated", () => {
    );
  });
 });
+
+describe("Two way merge", () => {
+  it("should correctly merge from zero files", async () => {
+    const a = "aaa";
+    const b = "bbb";
+    const res = twoWayMerge(a, b);
+    const expected = `\`<<<<<<<\`
+aaa
+\`=======\`
+bbb
+\`>>>>>>>\``;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge from common lines", async () => {
+    const a = `
+Something is cool. 中文1
+Other thing is cooler. 哈哈！
+`;
+    const b = `
+Anything is cool. 中文2
+Other thing is cooler. 哈哈！
+`;
+    const res = twoWayMerge(a, b);
+    // console.log(res);
+    const expected = `
+\`<<<<<<<\`
+Something is cool. 中文1
+\`=======\`
+Anything is cool. 中文2
+\`>>>>>>>\`
+Other thing is cooler. 哈哈！
+`;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should merge by lines", async () => {
+    const a = `
+Something is cool. 中文1
+`;
+    const b = `
+Something is cooler. 中文2
+`;
+    const res = twoWayMerge(a, b);
+    // console.log(res);
+    const expected = `
+\`<<<<<<<\`
+Something is cool. 中文1
+\`=======\`
+Something is cooler. 中文2
+\`>>>>>>>\`
+`;
+    deepStrictEqual(expected, res);
+  });
+});
+
+describe("Three way merge", () => {
+  it("should correctly merge from zero files", async () => {
+    const orig = "";
+    const a = "aaa";
+    const b = "bbb";
+    const res = threeWayMerge(a, b, orig);
+    const expected = `\`<<<<<<<\`
+aaa
+\`=======\`
+bbb
+\`>>>>>>>\``;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge after adding lines on both sides", async () => {
+    const orig = `
+* [ ] A1
+* [ ] A2
+* [ ] A3
+`;
+    const a = `
+* [ ] A1
+* [ ] new line after A1
+* [ ] A2
+* [ ] A3
+`;
+    const b = `
+* [ ] A1
+* [ ] A2
+* [ ] New line after A2
+* [ ] A3
+`;
+    const res = threeWayMerge(a, b, orig);
+    // console.log(res);
+    const expected = `
+* [ ] A1
+* [ ] new line after A1
+* [ ] A2
+* [ ] New line after A2
+* [ ] A3
+`;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge after adding lines on both sides (again)", async () => {
+    const orig = `
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+* [ ] A3
+`;
+    const a = `
+* [ ] 中文
+* [ ] new line after 中文
+* [ ] にほんご／にっぽんご
+* [ ] A3
+`;
+    const b = `
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+* [ ] New line after にほんご／にっぽんご
+* [ ] A3
+`;
+    const res = threeWayMerge(a, b, orig);
+    // console.log(res);
+    const expected = `
+* [ ] 中文
+* [ ] new line after 中文
+* [ ] にほんご／にっぽんご
+* [ ] New line after にほんご／にっぽんご
+* [ ] A3
+`;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge after deleting lines on both sides", async () => {
+    const orig = `
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+* [ ] A3
+* [ ] A4
+`;
+    const a = `
+* [ ] にほんご／にっぽんご
+* [ ] A3
+* [ ] A4
+`;
+    const b = `
+* [ ] 中文
+* [ ] A3
+* [ ] A4
+`;
+    const res = threeWayMerge(a, b, orig);
+    // console.log(res);
+    const expected = `
+\`<<<<<<<\`
+* [ ] にほんご／にっぽんご
+\`=======\`
+* [ ] 中文
+\`>>>>>>>\`
+* [ ] A3
+* [ ] A4
+`;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge after adding on one side and deleting on other side", async () => {
+    const orig = `
+* [ ] 中文
+* [ ] A3
+* [ ] A4
+`;
+    const a = `
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+* [ ] A3
+* [ ] A4
+`;
+    const b = `
+* [ ] A3
+* [ ] A4
+`;
+    const res = threeWayMerge(a, b, orig);
+    // console.log(res);
+    const expected = `
+\`<<<<<<<\`
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+\`=======\`
+\`>>>>>>>\`
+* [ ] A3
+* [ ] A4
+`;
+    deepStrictEqual(expected, res);
+  });
+
+  it("should correctly merge after adding on one side and deleting on other side (again)", async () => {
+    const orig = `
+* [ ] 中文
+* [ ] A3
+* [ ] A4
+`;
+    const a = `
+* [ ] A3
+* [ ] A4
+`;
+    const b = `
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+* [ ] A3
+* [ ] A4
+`;
+    const res = threeWayMerge(a, b, orig);
+    // console.log(res);
+    const expected = `
+\`<<<<<<<\`
+\`=======\`
+* [ ] 中文
+* [ ] にほんご／にっぽんご
+\`>>>>>>>\`
+* [ ] A3
+* [ ] A4
+`;
+    deepStrictEqual(expected, res);
+  });
+});