diff --git a/tests/ansible/hosts/transport_config.hosts b/tests/ansible/hosts/transport_config.hosts
index c98d4f41..76998e26 100644
--- a/tests/ansible/hosts/transport_config.hosts
+++ b/tests/ansible/hosts/transport_config.hosts
@@ -31,3 +31,7 @@ tc-become-set
 # become_method()
 tc-become-method-unset
 tc-become-method-su ansible_become_method=su
+
+# become_user()
+tc-become-user-unset
+tc-become-user-set ansible_become_user=ansi-become-user
diff --git a/tests/ansible/integration/transport_config/all.yml b/tests/ansible/integration/transport_config/all.yml
index 908f6735..47409b19 100644
--- a/tests/ansible/integration/transport_config/all.yml
+++ b/tests/ansible/integration/transport_config/all.yml
@@ -1,5 +1,6 @@
 - include: become.yml
 - include: become_method.yml
+- include: become_user.yml
 - include: password.yml
 - include: python_path.yml
 - include: remote_addr.yml
diff --git a/tests/ansible/integration/transport_config/become_user.yml b/tests/ansible/integration/transport_config/become_user.yml
new file mode 100644
index 00000000..43cbca2a
--- /dev/null
+++ b/tests/ansible/integration/transport_config/become_user.yml
@@ -0,0 +1,106 @@
+# Each case is followed by mitogen_via= case to test hostvars user.
+
+
+# No become-user set, defaults to "root"
+- name: integration/transport_config/become-user.yml
+  hosts: tc-become-user-unset
+  become: true
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 2
+      - out.result[0].method == "ssh"
+      - out.result[1].method == "sudo"
+      - out.result[1].kwargs.username == "root"
+
+# Not set, unbecoming mitogen_via=
+- hosts: tc-become-user-unset
+  become: true
+  vars: {mitogen_via: tc-become-user-set}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 3
+      - out.result[0].method == "ssh"
+      - out.result[1].method == "ssh"
+      - out.result[2].method == "sudo"
+      - out.result[2].kwargs.username == "root"
+
+# Not set, becoming mitogen_via=
+- hosts: tc-become-user-unset
+  become: true
+  vars: {mitogen_via: viauser@tc-become-user-set}
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 4
+      - out.result[0].method == "ssh"
+      - out.result[1].method == "sudo"
+      - out.result[1].kwargs.username == "viauser"
+      - out.result[2].method == "ssh"
+      - out.result[3].method == "sudo"
+      - out.result[3].kwargs.username == "root"
+
+
+# ansible_become_user= set.
+- hosts: tc-become-user-set
+  become: true
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 2
+      - out.result[0].method == "ssh"
+      - out.result[1].method == "sudo"
+      - out.result[1].kwargs.username == "ansi-become-user"
+
+
+# ansible_become_user=, unbecoming via=
+- hosts: tc-become-user-set
+  vars: {mitogen_via: tc-become-user-unset}
+  become: true
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 3
+      - out.result[0].method == "ssh"
+      - out.result[0].kwargs.hostname == "tc-become-user-unset"
+
+      - out.result[1].method == "ssh"
+      - out.result[1].kwargs.hostname == "tc-become-user-set"
+
+      - out.result[2].method == "sudo"
+      - out.result[2].kwargs.username == "ansi-become-user"
+
+
+# ansible_become_user=, becoming via=
+- hosts: tc-become-user-set
+  vars: {mitogen_via: "doas:doasuser@tc-become-user-unset"}
+  become: true
+  tasks:
+  - include: ../_mitogen_only.yml
+  - {mitogen_get_stack: {}, register: out}
+  - assert:
+      that:
+      - out.result|length == 4
+      - out.result[0].method == "ssh"
+      - out.result[0].kwargs.hostname == "tc-become-user-unset"
+
+      - out.result[1].method == "doas"
+      - out.result[1].kwargs.username == "doasuser"
+
+      - out.result[2].method == "ssh"
+      - out.result[2].kwargs.hostname == "tc-become-user-set"
+
+      - out.result[3].method == "sudo"
+      - out.result[3].kwargs.username == "ansi-become-user"
+