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cc9011c1ae
Co-authored-by: vimtor <36263538+vimtor@users.noreply.github.com> Co-authored-by: vimtor <vn4varro@gmail.com>
44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
import { expect, test } from "bun:test"
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import { splitAddedPatch } from "../../src/util/diff"
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test("splits a complete new-file patch into independently numbered chunks", () => {
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const patch = `diff --git a/new.txt b/new.txt
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new file mode 100644
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--- /dev/null
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+++ b/new.txt
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@@ -0,0 +1,5 @@
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+one
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+++value beginning with plus signs
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+three
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+four
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+five`
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const chunks = splitAddedPatch(patch, 2)!
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expect(chunks.map((chunk) => chunk.rows)).toEqual([2, 2, 1])
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expect(chunks.map((chunk) => chunk.patch.match(/@@ -0,0 \+(\d+),(\d+) @@/)?.slice(1))).toEqual([
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["1", "2"],
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["3", "2"],
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["5", "1"],
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])
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expect(chunks.flatMap((chunk) => chunk.lines)).toEqual([
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"+one",
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"+++value beginning with plus signs",
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"+three",
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"+four",
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"+five",
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])
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expect(chunks.every((chunk) => chunk.patch.startsWith("diff --git a/new.txt b/new.txt"))).toBe(true)
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})
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test("retains a missing-final-newline marker only on the last chunk", () => {
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const patch = `--- /dev/null\n+++ b/new.txt\n@@ -0,0 +1,3 @@\n+one\n+two\n+three\n\\ No newline at end of file\n`
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const chunks = splitAddedPatch(patch, 2)!
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expect(chunks).toHaveLength(2)
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expect(chunks[0].patch).not.toContain("No newline")
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expect(chunks[1].patch).toContain("+three\n\\ No newline at end of file")
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})
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test("does not split partial or mixed patches", () => {
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expect(splitAddedPatch("@@ -1 +1 @@\n-before\n+after", 2)).toBeUndefined()
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expect(splitAddedPatch("@@ -0,0 +1,3 @@\n+one\n+two", 2)).toBeUndefined()
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expect(splitAddedPatch("@@ -0,0 +1,2 @@\n+one\n two", 2)).toBeUndefined()
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})
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