feat!: initial commit

Signed-off-by: João Augusto Costa Branco Marado Torres <torres.dev@disroot.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/src/lib/git/log.test.ts b/src/lib/git/log.test.ts
new file mode 100644
index 0000000..09acb1c
--- /dev/null
+++ b/src/lib/git/log.test.ts
@@ -0,0 +1,71 @@
+import { describe, it } from "@std/testing/bdd";
+import { assertEquals, assertExists } from "@std/assert";
+import {
+  assertSpyCall,
+  assertSpyCalls,
+  returnsNext,
+  stub,
+} from "@std/testing/mock";
+import { getLastCommitForOneOfFiles } from "./log.ts";
+import {
+  emptyCommandOutput,
+  gitDiffTreeCommandOutput,
+  gitDir,
+  gitLogPrettyCommandOutput,
+  gitRevParseCommandOutput,
+} from "../../../tests/fixtures/test_data.ts";
+
+describe("getLastCommitForOneOfFiles", () => {
+  it("returns parsed commit with signature and file info", async () => {
+    const outputs = [
+      gitLogPrettyCommandOutput,
+      gitDiffTreeCommandOutput,
+      gitRevParseCommandOutput,
+    ];
+    using logStub = stub(
+      Deno.Command.prototype,
+      "output",
+      returnsNext(outputs),
+    );
+
+    const file = new URL("file.ts", gitDir);
+    const result = await getLastCommitForOneOfFiles(file);
+
+    assertExists(result);
+    assertEquals(result.hash.short, "abcdef1");
+    assertEquals(result.hash.long, "abcdef1234567890abcdef1234567890abcdef12");
+
+    assertEquals(result.author.name, "Alice");
+    assertEquals(result.committer.email, "bob@example.com");
+
+    assertEquals(result.files.length, 1);
+    assertEquals(result.files[0], {
+      path: file,
+      status: "modified",
+    });
+
+    assertEquals(result.signature?.type, "gpg");
+    assertEquals(result.signature?.signer, "bob@example.com");
+
+    for (let i = 0; i < outputs.length; i++) {
+      assertSpyCall(logStub, i, { args: [], returned: outputs[i] });
+    }
+    assertSpyCalls(logStub, outputs.length);
+  });
+
+  it("returns undefined for empty commit output", async () => {
+    using logStub = stub(
+      Deno.Command.prototype,
+      "output",
+      returnsNext([emptyCommandOutput]),
+    );
+
+    const result = await getLastCommitForOneOfFiles(
+      [new URL("nonexistent.ts", gitDir)],
+    );
+
+    assertEquals(result, undefined);
+    assertSpyCall(logStub, 0, { args: [], returned: emptyCommandOutput });
+    assertSpyCalls(logStub, 1);
+  });
+});