automapper_validation/eval/
evaluator.rs

1//! Core condition evaluation traits.
2
3use super::context::EvaluationContext;
4
5/// Three-valued result of evaluating a single condition.
6///
7/// Unlike the C# implementation which uses `bool`, we use three-valued logic
8/// to support partial evaluation when external conditions are unavailable.
9#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
10pub enum ConditionResult {
11    /// The condition is satisfied.
12    True,
13    /// The condition is not satisfied.
14    False,
15    /// The condition cannot be determined (e.g., external condition without a provider).
16    Unknown,
17}
18
19impl ConditionResult {
20    /// Returns `true` if this is `ConditionResult::True`.
21    pub fn is_true(self) -> bool {
22        matches!(self, ConditionResult::True)
23    }
24
25    /// Returns `true` if this is `ConditionResult::False`.
26    pub fn is_false(self) -> bool {
27        matches!(self, ConditionResult::False)
28    }
29
30    /// Returns `true` if this is `ConditionResult::Unknown`.
31    pub fn is_unknown(self) -> bool {
32        matches!(self, ConditionResult::Unknown)
33    }
34
35    /// Three-valued AND: `False` if either is, `True` if both are, else `Unknown`.
36    pub fn and(self, other: ConditionResult) -> ConditionResult {
37        match (self, other) {
38            (ConditionResult::False, _) | (_, ConditionResult::False) => ConditionResult::False,
39            (ConditionResult::True, ConditionResult::True) => ConditionResult::True,
40            _ => ConditionResult::Unknown,
41        }
42    }
43
44    /// Three-valued OR: `True` if either is, `False` if both are, else `Unknown`.
45    pub fn or(self, other: ConditionResult) -> ConditionResult {
46        match (self, other) {
47            (ConditionResult::True, _) | (_, ConditionResult::True) => ConditionResult::True,
48            (ConditionResult::False, ConditionResult::False) => ConditionResult::False,
49            _ => ConditionResult::Unknown,
50        }
51    }
52
53    /// Three-valued NOT.
54    pub fn negate(self) -> ConditionResult {
55        match self {
56            ConditionResult::True => ConditionResult::False,
57            ConditionResult::False => ConditionResult::True,
58            ConditionResult::Unknown => ConditionResult::Unknown,
59        }
60    }
61
62    /// Converts to `Option<bool>`: True -> Some(true), False -> Some(false), Unknown -> None.
63    pub fn to_option(self) -> Option<bool> {
64        match self {
65            ConditionResult::True => Some(true),
66            ConditionResult::False => Some(false),
67            ConditionResult::Unknown => None,
68        }
69    }
70}
71
72impl From<bool> for ConditionResult {
73    fn from(value: bool) -> Self {
74        if value {
75            ConditionResult::True
76        } else {
77            ConditionResult::False
78        }
79    }
80}
81
82impl std::fmt::Display for ConditionResult {
83    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
84        match self {
85            ConditionResult::True => write!(f, "True"),
86            ConditionResult::False => write!(f, "False"),
87            ConditionResult::Unknown => write!(f, "Unknown"),
88        }
89    }
90}
91
92/// Evaluates individual AHB conditions by number.
93///
94/// Implementations are typically generated from AHB XML schemas (one per
95/// message type and format version). Each condition number maps to a
96/// specific business rule check.
97pub trait ConditionEvaluator: Send + Sync {
98    /// Evaluate a single condition by number.
99    ///
100    /// Returns `ConditionResult::Unknown` for unrecognized condition numbers
101    /// or conditions that require unavailable external context.
102    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult;
103
104    /// Returns `true` if the given condition requires external context
105    /// (i.e., cannot be determined from the EDIFACT message alone).
106    fn is_external(&self, condition: u32) -> bool;
107
108    /// Returns `true` if this evaluator has an implementation for the given
109    /// condition number (whether internal or external). Conditions that fall
110    /// through to the `_ => Unknown` wildcard return `false`.
111    ///
112    /// This allows distinguishing "implemented but returned Unknown because
113    /// the relevant data isn't present in the message" from "not implemented
114    /// at all".
115    fn is_known(&self, _condition: u32) -> bool {
116        false
117    }
118
119    /// Returns the message type this evaluator handles (e.g., "UTILMD").
120    fn message_type(&self) -> &str;
121
122    /// Returns the format version this evaluator handles (e.g., "FV2510").
123    fn format_version(&self) -> &str;
124}
125
126impl<T: ConditionEvaluator + ?Sized> ConditionEvaluator for std::sync::Arc<T> {
127    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult {
128        (**self).evaluate(condition, ctx)
129    }
130
131    fn is_external(&self, condition: u32) -> bool {
132        (**self).is_external(condition)
133    }
134
135    fn is_known(&self, condition: u32) -> bool {
136        (**self).is_known(condition)
137    }
138
139    fn message_type(&self) -> &str {
140        (**self).message_type()
141    }
142
143    fn format_version(&self) -> &str {
144        (**self).format_version()
145    }
146}
147
148/// Provider for external conditions that depend on context outside the EDIFACT message.
149///
150/// External conditions are things like:
151/// - [1] "Wenn Aufteilung vorhanden" (message splitting status)
152/// - [14] "Wenn Datum bekannt" (whether a date is known)
153/// - [30] "Wenn Antwort auf Aktivierung" (response to activation)
154///
155/// These cannot be determined from the EDIFACT content alone and require
156/// business context from the calling system.
157pub trait ExternalConditionProvider: Send + Sync {
158    /// Evaluate an external condition by name.
159    ///
160    /// The `condition_name` corresponds to the speaking name from the
161    /// generated external conditions constants (e.g., "MessageSplitting",
162    /// "DateKnown").
163    fn evaluate(&self, condition_name: &str) -> ConditionResult;
164}
165
166/// A no-op external condition provider that returns `Unknown` for everything.
167///
168/// Useful when no external context is available — conditions will propagate
169/// as `Unknown` through the expression evaluator.
170pub struct NoOpExternalProvider;
171
172impl ExternalConditionProvider for NoOpExternalProvider {
173    fn evaluate(&self, _condition_name: &str) -> ConditionResult {
174        ConditionResult::Unknown
175    }
176}
177
178/// The number of a message type's bare "Wenn vorhanden" condition, if it has one.
179///
180/// The condition is self-referential: its value is whether the element or
181/// group it annotates is present. `Soll [166]` on a group means "send it if
182/// you have it", which only the sender knows, so an absent group annotated
183/// with it is never missing. The generated evaluators answer it with `True`
184/// ("the rule applies wherever it is evaluated"), which is right for a present
185/// element and wrong for an absent one — see [`AbsentTarget`].
186///
187/// The numbers are stable across every format version in
188/// `xml-migs-and-ahbs/` (FV2410–FV2610); keyed by [`ConditionEvaluator::message_type`]
189/// rather than by evaluator so aliased and regenerated evaluators need no edit.
190pub fn presence_condition(message_type: &str) -> Option<u32> {
191    match message_type {
192        "UTILMD_Strom" | "UTILMD_Gas" => Some(166),
193        "INVOIC" => Some(22),
194        "ORDERS" => Some(12),
195        _ => None,
196    }
197}
198
199/// Every condition of a message type that answers "does the annotated thing
200/// exist?", which an absent element or group answers with no.
201///
202/// The [`presence_condition`], plus conditions that ask for one repetition per
203/// real-world object the message cannot see. UTILMD_Strom [2003] ("Einmal für
204/// jede ruhende Marktlokation, die der Marktlokation »Kundenanlage« …
205/// untergeordnet ist", FV2504–FV2610, absent in Gas) is `Soll` on the ruhende
206/// Marktlokation: zero ruhende MaLos means zero groups, and only the sender
207/// knows how many exist. The generated evaluators cannot decide it and answer
208/// `Unknown`, which reported every message without a ruhende MaLo.
209pub fn presence_conditions(message_type: &str) -> &'static [u32] {
210    match message_type {
211        "UTILMD_Strom" => &[166, 2003],
212        "UTILMD_Gas" => &[166],
213        "INVOIC" => &[22],
214        "ORDERS" => &[12],
215        _ => &[],
216    }
217}
218
219/// The condition of a message type that allows a group or segment once per
220/// transaction, and the transaction group: UTILMD's `[2061]` "Segment bzw.
221/// Segmentgruppe ist genau einmal je SG4 IDE (Vorgang) anzugeben" (Strom and
222/// Gas, FV2504–FV2610). The conditions evaluate it as `True` wherever there is
223/// a transaction, so what it limits — the count — is checked on its own; see
224/// [`binds_once`].
225pub fn once_per_transaction(message_type: &str) -> Option<(u32, &'static str)> {
226    match message_type {
227        "UTILMD_Strom" | "UTILMD_Gas" => Some((2061, "SG4")),
228        _ => None,
229    }
230}
231
232/// A transaction (Vorgang) of a message type: the top-level group it repeats
233/// as, and where that group's entry segment carries the transaction's
234/// reference, which an APERAK names in SG5 RFF+TN DE1154.
235#[derive(Debug, Clone, Copy, PartialEq, Eq)]
236pub struct Vorgang {
237    /// The group (`SG4`).
238    pub group: &'static str,
239    /// Its entry segment (`IDE`).
240    pub tag: &'static str,
241    /// The reference's element and component in that segment.
242    pub element: usize,
243    pub component: usize,
244}
245
246/// The transactions of a message type, as the APERAK MIG lists them (SG5
247/// RFF+TN DE1154, FV2504–FV2610):
248///
249/// - IFTSTA: SG4 EQD DE8260, or SG14 CNI DE1490 — each Prüfidentifikator has
250///   one of the two;
251/// - INSRPT: SG3 DOC DE1004;
252/// - UTILMD: SG4 IDE DE7402;
253/// - UTILTS: SG5 IDE DE7402.
254///
255/// Every other message type has none. `message_type` is a variant
256/// (`UTILMD_Strom`) or a message type (`UTILMD`).
257pub fn transactions(message_type: &str) -> &'static [Vorgang] {
258    const IDE_SG4: Vorgang = Vorgang {
259        group: "SG4",
260        tag: "IDE",
261        element: 1,
262        component: 0,
263    };
264    const IDE_SG5: Vorgang = Vorgang {
265        group: "SG5",
266        tag: "IDE",
267        element: 1,
268        component: 0,
269    };
270    const DOC: Vorgang = Vorgang {
271        group: "SG3",
272        tag: "DOC",
273        element: 1,
274        component: 0,
275    };
276    const EQD: Vorgang = Vorgang {
277        group: "SG4",
278        tag: "EQD",
279        element: 1,
280        component: 0,
281    };
282    const CNI: Vorgang = Vorgang {
283        group: "SG14",
284        tag: "CNI",
285        element: 0,
286        component: 0,
287    };
288    match message_type.split('_').next().unwrap_or_default() {
289        "UTILMD" => &[IDE_SG4],
290        "UTILTS" => &[IDE_SG5],
291        "INSRPT" => &[DOC],
292        "IFTSTA" => &[EQD, CNI],
293        _ => &[],
294    }
295}
296
297/// Whether `group_id` is a transaction group of `message_type`, whose
298/// conditions the AHB states per transaction. The validator evaluates each
299/// repetition against the message as that transaction sees it
300/// (`mig_assembly::transaction_view`, #337).
301pub fn is_transaction_group(message_type: &str, group_id: &str) -> bool {
302    transactions(message_type)
303        .iter()
304        .any(|v| v.group == group_id)
305}
306
307/// Whether `status` limits what it annotates to once per transaction: the
308/// condition `once` is a conjunct of every line (`Muss [483] ∧ [2061]`). Where
309/// it sits in one branch only (`Soll [165] ∧ (([2061] ∧ [583]) ∨ [584])`), the
310/// other branch allows more.
311pub fn binds_once(status: &str, once: u32) -> bool {
312    fn conjunct(expr: &crate::expr::ConditionExpr, once: u32) -> bool {
313        match expr {
314            crate::expr::ConditionExpr::Ref(id) => *id == once,
315            crate::expr::ConditionExpr::And(exprs) => exprs.iter().any(|e| conjunct(e, once)),
316            _ => false,
317        }
318    }
319    let lines: Vec<&str> = status
320        .lines()
321        .map(str::trim)
322        .filter(|l| !l.is_empty())
323        .collect();
324    !lines.is_empty()
325        && lines.iter().all(|line| {
326            matches!(
327                crate::expr::ConditionParser::parse(line),
328                Ok(Some(expr)) if conjunct(&expr, once)
329            )
330        })
331}
332
333/// Evaluates conditions for an element or group that is known to be absent.
334///
335/// Identical to the wrapped evaluator except that the message type's
336/// [`presence_conditions`] are `False`: whatever the condition annotates is not
337/// there. Use it wherever a status is evaluated to decide whether something
338/// missing is required.
339pub struct AbsentTarget<'a, E: ConditionEvaluator + ?Sized>(pub &'a E);
340
341impl<E: ConditionEvaluator + ?Sized> ConditionEvaluator for AbsentTarget<'_, E> {
342    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult {
343        if presence_conditions(self.0.message_type()).contains(&condition) {
344            return ConditionResult::False;
345        }
346        self.0.evaluate(condition, ctx)
347    }
348
349    fn is_external(&self, condition: u32) -> bool {
350        self.0.is_external(condition)
351    }
352
353    fn is_known(&self, condition: u32) -> bool {
354        self.0.is_known(condition)
355    }
356
357    fn message_type(&self) -> &str {
358        self.0.message_type()
359    }
360
361    fn format_version(&self) -> &str {
362        self.0.format_version()
363    }
364}
365
366/// Evaluates conditions for an element or group that is known to be present,
367/// to decide whether it is allowed there.
368///
369/// The message type's [`presence_conditions`] are `True`: whatever the
370/// condition annotates is there. Only the AHB's conditions proper (`[1]` to
371/// `[499]`) decide; notes (`[500]`–`[899]`), formats (`[900]`–`[999]`) and
372/// repetition rules (`[2000]` and up: "genau einmal je SG8 …") say nothing about
373/// whether something may be sent, and are `Unknown` — so `[197] ∧ [2308]` is
374/// false when `[197]` is, and `[2317] ⊻ [2318]` is never.
375pub struct PresentTarget<'a, E: ConditionEvaluator + ?Sized>(pub &'a E);
376
377impl<E: ConditionEvaluator + ?Sized> ConditionEvaluator for PresentTarget<'_, E> {
378    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult {
379        if presence_conditions(self.0.message_type()).contains(&condition) {
380            return ConditionResult::True;
381        }
382        if !(1..500).contains(&condition) {
383            return ConditionResult::Unknown;
384        }
385        self.0.evaluate(condition, ctx)
386    }
387
388    fn is_external(&self, condition: u32) -> bool {
389        self.0.is_external(condition)
390    }
391
392    fn is_known(&self, condition: u32) -> bool {
393        self.0.is_known(condition)
394    }
395
396    fn message_type(&self) -> &str {
397        self.0.message_type()
398    }
399
400    fn format_version(&self) -> &str {
401        self.0.format_version()
402    }
403}
404
405/// Whether something present under `status` is not allowed where `ctx` is: a
406/// `Muss`/`X` status with a condition that evaluates to false through
407/// [`PresentTarget`]. `Soll`/`Kann`, an unconditional status, an undecidable
408/// condition, a package (`[19P1..1]`, judged by its own check) and a status of
409/// several lines refuse nothing.
410pub fn refuses_presence<E: ConditionEvaluator + ?Sized>(
411    status: &str,
412    evaluator: &E,
413    ctx: &EvaluationContext,
414    ub_definitions: &std::collections::BTreeMap<String, crate::expr::ConditionExpr>,
415) -> bool {
416    refuses(status, &PresentTarget(evaluator), ctx, ub_definitions)
417}
418
419/// The repetition conditions of a message type whose evaluators count what
420/// they limit in the group they name, so that a false one means "sent too
421/// often there": ORDERS `[2005]` / `[2006]`, "Pro SG29 LIN ist die SG34
422/// RFF+Z09 (Gerätenummer) genau einmal / bis zu dreimal anzugeben". Most
423/// `[2000]`+ evaluators still count over the whole message; a condition joins
424/// this list once its evaluator is verified to count per instance.
425pub fn counted_repetitions(message_type: &str) -> &'static [u32] {
426    match message_type {
427        "ORDERS" => &[2005, 2006],
428        _ => &[],
429    }
430}
431
432/// The repetition conditions of a message type that set how often a segment
433/// is sent in its group instance where they apply, as `(condition, min,
434/// max)`: UTILMD Strom `[2317]` "… CAV+MIW/MPW/MUW vorhanden, ist das Segment
435/// mindestens zweimal anzugeben" and `[2318]` "… CAV+MBW vorhanden, … genau
436/// einmal" on the Wandler's CAV+Z30. Their evaluators say whether one applies
437/// there (which also makes the segment required); the count is judged by
438/// [`breaks_repetition_limit`].
439pub fn repetition_limits(message_type: &str) -> &'static [(u32, usize, Option<usize>)] {
440    match message_type {
441        "UTILMD_Strom" => &[(2317, 2, None), (2318, 1, Some(1))],
442        _ => &[],
443    }
444}
445
446/// Whether `count` segments under `status` break a [`repetition_limits`]
447/// condition the status names and that applies where `ctx` is.
448pub fn breaks_repetition_limit<E: ConditionEvaluator + ?Sized>(
449    status: &str,
450    evaluator: &E,
451    ctx: &EvaluationContext,
452    count: usize,
453) -> bool {
454    repetition_limits(evaluator.message_type())
455        .iter()
456        .filter(|(id, _, _)| status.contains(&format!("[{id}]")))
457        .any(|&(id, min, max)| {
458            evaluator.evaluate(id, ctx) == ConditionResult::True
459                && (count < min || max.is_some_and(|max| count > max))
460        })
461}
462
463/// [`PresentTarget`], except that the message type's
464/// [`counted_repetitions`] are evaluated.
465struct CountTarget<'a, E: ConditionEvaluator + ?Sized>(&'a E);
466
467impl<E: ConditionEvaluator + ?Sized> ConditionEvaluator for CountTarget<'_, E> {
468    fn evaluate(&self, condition: u32, ctx: &EvaluationContext) -> ConditionResult {
469        if counted_repetitions(self.0.message_type()).contains(&condition) {
470            return self.0.evaluate(condition, ctx);
471        }
472        PresentTarget(self.0).evaluate(condition, ctx)
473    }
474
475    fn is_external(&self, condition: u32) -> bool {
476        self.0.is_external(condition)
477    }
478
479    fn is_known(&self, condition: u32) -> bool {
480        self.0.is_known(condition)
481    }
482
483    fn message_type(&self) -> &str {
484        self.0.message_type()
485    }
486
487    fn format_version(&self) -> &str {
488        self.0.format_version()
489    }
490}
491
492/// Whether something present under `status` is sent more often than it allows
493/// where `ctx` is: [`refuses_presence`] does not refuse it, but does once the
494/// message type's [`counted_repetitions`] are evaluated. ORDERS 17009's SG34
495/// `Muss ([102] ∧ [2006]) ⊻ ([103] ∧ [2005])` holds for the second RFF+Z09
496/// of a Zähleinrichtung as far as presence goes; `[2005]` refuses it.
497pub fn refuses_count<E: ConditionEvaluator + ?Sized>(
498    status: &str,
499    evaluator: &E,
500    ctx: &EvaluationContext,
501    ub_definitions: &std::collections::BTreeMap<String, crate::expr::ConditionExpr>,
502) -> bool {
503    let counted = counted_repetitions(evaluator.message_type());
504    let names_one = status.split('[').skip(1).any(|term| {
505        term.split(']')
506            .next()
507            .and_then(|id| id.parse::<u32>().ok())
508            .is_some_and(|id| counted.contains(&id))
509    });
510    names_one
511        && !refuses_presence(status, evaluator, ctx, ub_definitions)
512        && refuses(status, &CountTarget(evaluator), ctx, ub_definitions)
513}
514
515/// Whether a `Muss`/`X` `status` evaluates to false through `target`; see
516/// [`refuses_presence`] for what refuses nothing.
517fn refuses<E: ConditionEvaluator>(
518    status: &str,
519    target: &E,
520    ctx: &EvaluationContext,
521    ub_definitions: &std::collections::BTreeMap<String, crate::expr::ConditionExpr>,
522) -> bool {
523    let status = status.trim();
524    let package = status.split('[').skip(1).any(|term| {
525        term.trim_start_matches(|c: char| c.is_ascii_digit())
526            .starts_with('P')
527    });
528    if status.contains('\n') || !status.contains('[') || package {
529        return false;
530    }
531    let keyword = &status[..status
532        .find(|c: char| !c.is_alphabetic())
533        .unwrap_or(status.len())];
534    if !matches!(keyword, "Muss" | "X") {
535        return false;
536    }
537    super::ConditionExprEvaluator::new(target).evaluate_status_with_ub(status, ctx, ub_definitions)
538        == ConditionResult::False
539}
540
541#[cfg(test)]
542mod tests {
543    use super::*;
544
545    struct AlwaysTrue(&'static str);
546
547    impl ConditionEvaluator for AlwaysTrue {
548        fn evaluate(&self, _: u32, _: &EvaluationContext) -> ConditionResult {
549            ConditionResult::True
550        }
551        fn is_external(&self, _: u32) -> bool {
552            false
553        }
554        fn message_type(&self) -> &str {
555            self.0
556        }
557        fn format_version(&self) -> &str {
558            "FV2604"
559        }
560    }
561
562    #[test]
563    fn once_per_transaction_binds_where_every_line_has_it() {
564        assert!(binds_once("Muss [483] ∧ [2061]", 2061));
565        assert!(binds_once("Muss [2061]", 2061));
566        assert!(binds_once(
567            "Muss ([77] ∧ [78]) ∧ [347] ∧ [2061]\r\nKann [2061]",
568            2061
569        ));
570        assert!(!binds_once("Soll [165] ∧ (([2061] ∧ [583]) ∨ [584])", 2061));
571        assert!(!binds_once(
572            "Muss ([32] ∧ [2061] ∧ [651]) ⊻ ([200] ∧ [601])",
573            2061
574        ));
575        assert!(!binds_once("Muss [483]", 2061));
576        assert!(!binds_once("", 2061));
577    }
578
579    #[test]
580    fn absent_target_answers_only_the_presence_condition_with_false() {
581        let external = NoOpExternalProvider;
582        let ctx = EvaluationContext::new("55043", &external, &[]);
583        let inner = AlwaysTrue("UTILMD_Strom");
584        let absent = AbsentTarget(&inner);
585        assert_eq!(absent.evaluate(166, &ctx), ConditionResult::False);
586        assert_eq!(absent.evaluate(674, &ctx), ConditionResult::True);
587        // [2003]: one group per ruhende Marktlokation the sender knows of.
588        assert_eq!(absent.evaluate(2003, &ctx), ConditionResult::False);
589
590        // [166] of another message type is an unrelated condition.
591        let invoic = AlwaysTrue("INVOIC");
592        assert_eq!(
593            AbsentTarget(&invoic).evaluate(166, &ctx),
594            ConditionResult::True
595        );
596        assert_eq!(
597            AbsentTarget(&invoic).evaluate(22, &ctx),
598            ConditionResult::False
599        );
600    }
601
602    #[test]
603    fn test_condition_result_is_methods() {
604        assert!(ConditionResult::True.is_true());
605        assert!(!ConditionResult::True.is_false());
606        assert!(!ConditionResult::True.is_unknown());
607
608        assert!(!ConditionResult::False.is_true());
609        assert!(ConditionResult::False.is_false());
610
611        assert!(ConditionResult::Unknown.is_unknown());
612    }
613
614    #[test]
615    fn three_valued_and_or_not() {
616        use ConditionResult::{False as F, True as T, Unknown as U};
617        assert_eq!(T.and(T), T);
618        assert_eq!(T.and(U), U);
619        assert_eq!(U.and(F), F);
620        assert_eq!(F.or(F), F);
621        assert_eq!(F.or(U), U);
622        assert_eq!(U.or(T), T);
623        assert_eq!(U.negate(), U);
624        assert_eq!(T.negate(), F);
625    }
626
627    #[test]
628    fn test_condition_result_to_option() {
629        assert_eq!(ConditionResult::True.to_option(), Some(true));
630        assert_eq!(ConditionResult::False.to_option(), Some(false));
631        assert_eq!(ConditionResult::Unknown.to_option(), None);
632    }
633
634    #[test]
635    fn test_condition_result_from_bool() {
636        assert_eq!(ConditionResult::from(true), ConditionResult::True);
637        assert_eq!(ConditionResult::from(false), ConditionResult::False);
638    }
639
640    #[test]
641    fn test_condition_result_display() {
642        assert_eq!(format!("{}", ConditionResult::True), "True");
643        assert_eq!(format!("{}", ConditionResult::False), "False");
644        assert_eq!(format!("{}", ConditionResult::Unknown), "Unknown");
645    }
646
647    #[test]
648    fn test_noop_external_provider() {
649        let provider = NoOpExternalProvider;
650        assert_eq!(
651            provider.evaluate("MessageSplitting"),
652            ConditionResult::Unknown
653        );
654        assert_eq!(provider.evaluate("anything"), ConditionResult::Unknown);
655    }
656}
automapper_validation/eval/evaluator.rs

automapper_validation/eval/
evaluator.rs
