Update conans/test/unittests/tools/scm/test_git_get_commit.py

- Test that submodules work as subfolders

conans/test/unittests/tools/scm/test_git_get_commit.py

@@ -35,11 +35,17 @@ def test_change_branch_in_root_commit():
 def test_multi_folder_repo():
     c = TestClient()
     conanfile = MockConanfile({})
-    c.save({"lib_a/conanfile.py": ""})
+    c.save({"conanfile.py": ""})
     c.run_command("git init .")
     c.run_command('git config user.name myname')
     c.run_command('git config user.email myname@mycompany.com')
     c.run_command("git add .")
+    c.run_command('git commit -m "Initial commit"')
+    c.run_command('git clone . source_subfolder')
+    c.run_command('git submodule add ../ source_subfolder')
+    c.run_command('git commit -m "submodule commit"')
+    c.save({"lib_a/conanfile.py": ""})
+    c.run_command("git add .")
     c.run_command('git commit -m "lib_a commit"')
     c.save({"lib_b/conanfile.py": ""})
     c.run_command("git add .")
@@ -61,11 +67,15 @@ def test_multi_folder_repo():
     git = Git(conanfile, folder=os.path.join(c.current_folder, "lib_c"))
     commit_libC = git.get_commit()
 
+    # Git object for submodule
+    git = Git(conanfile, folder=os.path.join(c.current_folder, "source_subfolder"))
+    commit_sub = git.get_commit()
+
     git = Git(conanfile, folder=c.current_folder)
     commit_root = git.get_commit()
 
     # All different
-    assert len({commit_libA, commit_libB, commit_libC, commit_root}) == 4
+    assert len({commit_libA, commit_libB, commit_libC, commit_sub, commit_root}) == 5
 
     c.run_command("git rev-parse HEAD")
     commit_real = str(c.out).splitlines()[0]
@@ -78,12 +88,20 @@ def test_multi_folder_repo():
     git = Git(conanfile, folder="./lib_b")
     rel_commit_libB = git.get_commit()
 
+    git = Git(conanfile, folder="source_subfolder")
+    rel_commit_sub1 = git.get_commit()
+
+    git = Git(conanfile, folder="./source_subfolder")
+    rel_commit_sub2 = git.get_commit()
+
     # this is folder default
     git = Git(conanfile, folder=".")
     rel_commit_root = git.get_commit()
 
     assert rel_commit_libA == commit_libA
     assert rel_commit_libB == commit_libB
+    assert rel_commit_sub1 == commit_sub
+    assert rel_commit_sub2 == commit_sub
     assert rel_commit_root == commit_root
 
     # New commit in A