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misc: Eliminate use of assert!((...).is_ok())

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Asserting on .is_ok()/.is_err() leads to hard to debug failures (as if
the test fails, it will only say "assertion failed: false". We replace
these with `.unwrap()`, which also prints the exact error variant that
was unexpectedly encountered (we can to this these days thanks to
efforts to implement Display and Debug for our error types). If the
assert!((...).is_ok()) was followed by an .unwrap() anyway, we just drop
the assert.

Inspired by and quoted from @roypat.

Signed-off-by: Ruoqing He <heruoqing@iscas.ac.cn>
This commit is contained in:
Ruoqing He
2024-09-30 19:07:39 +00:00
committed by Rob Bradford
parent 83bcf2a1ff
commit 297236a7c0
25 changed files with 244 additions and 281 deletions
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vmm/src/vm.rs
+27 -27
View File
@@ -2850,43 +2850,43 @@ mod tests {
match state {
VmState::Created => {
// Check the transitions from Created
assert!(state.valid_transition(VmState::Created).is_err());
assert!(state.valid_transition(VmState::Running).is_ok());
assert!(state.valid_transition(VmState::Shutdown).is_ok());
assert!(state.valid_transition(VmState::Paused).is_ok());
assert!(state.valid_transition(VmState::BreakPoint).is_ok());
state.valid_transition(VmState::Created).unwrap_err();
state.valid_transition(VmState::Running).unwrap();
state.valid_transition(VmState::Shutdown).unwrap();
state.valid_transition(VmState::Paused).unwrap();
state.valid_transition(VmState::BreakPoint).unwrap();
}
VmState::Running => {
// Check the transitions from Running
assert!(state.valid_transition(VmState::Created).is_err());
assert!(state.valid_transition(VmState::Running).is_err());
assert!(state.valid_transition(VmState::Shutdown).is_ok());
assert!(state.valid_transition(VmState::Paused).is_ok());
assert!(state.valid_transition(VmState::BreakPoint).is_ok());
state.valid_transition(VmState::Created).unwrap_err();
state.valid_transition(VmState::Running).unwrap_err();
state.valid_transition(VmState::Shutdown).unwrap();
state.valid_transition(VmState::Paused).unwrap();
state.valid_transition(VmState::BreakPoint).unwrap();
}
VmState::Shutdown => {
// Check the transitions from Shutdown
assert!(state.valid_transition(VmState::Created).is_err());
assert!(state.valid_transition(VmState::Running).is_ok());
assert!(state.valid_transition(VmState::Shutdown).is_err());
assert!(state.valid_transition(VmState::Paused).is_err());
assert!(state.valid_transition(VmState::BreakPoint).is_err());
state.valid_transition(VmState::Created).unwrap_err();
state.valid_transition(VmState::Running).unwrap();
state.valid_transition(VmState::Shutdown).unwrap_err();
state.valid_transition(VmState::Paused).unwrap_err();
state.valid_transition(VmState::BreakPoint).unwrap_err();
}
VmState::Paused => {
// Check the transitions from Paused
assert!(state.valid_transition(VmState::Created).is_err());
assert!(state.valid_transition(VmState::Running).is_ok());
assert!(state.valid_transition(VmState::Shutdown).is_ok());
assert!(state.valid_transition(VmState::Paused).is_err());
assert!(state.valid_transition(VmState::BreakPoint).is_err());
state.valid_transition(VmState::Created).unwrap_err();
state.valid_transition(VmState::Running).unwrap();
state.valid_transition(VmState::Shutdown).unwrap();
state.valid_transition(VmState::Paused).unwrap_err();
state.valid_transition(VmState::BreakPoint).unwrap_err();
}
VmState::BreakPoint => {
// Check the transitions from Breakpoint
assert!(state.valid_transition(VmState::Created).is_ok());
assert!(state.valid_transition(VmState::Running).is_ok());
assert!(state.valid_transition(VmState::Shutdown).is_err());
assert!(state.valid_transition(VmState::Paused).is_err());
assert!(state.valid_transition(VmState::BreakPoint).is_err());
state.valid_transition(VmState::Created).unwrap();
state.valid_transition(VmState::Running).unwrap();
state.valid_transition(VmState::Shutdown).unwrap_err();
state.valid_transition(VmState::Paused).unwrap_err();
state.valid_transition(VmState::BreakPoint).unwrap_err();
}
}
}
@@ -3169,7 +3169,7 @@ mod tests {
let gic = vm
.create_vgic(Gic::create_default_config(1))
.expect("Cannot create gic");
assert!(create_fdt(
create_fdt(
&mem,
"console=tty0",
vec![0],
@@ -3182,7 +3182,7 @@ mod tests {
None,
true,
)
.is_ok())
.unwrap();
}
}