Enforce documentation of additional tests

exercises/practice/rail-fence-cipher/.meta/additional-tests.json

@@ -2,6 +2,10 @@
   {
     "uuid": "46dc5c50-5538-401d-93a5-41102680d068",
     "description": "encode wide characters",
+    "comments": [
+      "Unicode tests are not suitable to be upstreamed.",
+      "Handling unicode is tedious in many languages."
+    ],
     "property": "encode",
     "input": {
       "msg": "古池蛙飛び込む水の音",

exercises/practice/reverse-string/.meta/additional-tests.json

@@ -2,6 +2,10 @@
   {
     "uuid": "01ebf55b-bebb-414e-9dec-06f7bb0bee3c",
     "description": "wide characters",
+    "comments": [
+      "Unicode tests are not suitable to be upstreamed.",
+      "Handling unicode is tedious in many languages."
+    ],
     "property": "reverse",
     "input": {
       "value": "子猫"
@@ -11,6 +15,10 @@
   {
     "uuid": "01ebf55b-bebb-414e-9dec-06f7bb0bee3c",
     "description": "grapheme clusters",
+    "comments": [
+      "Unicode tests are not suitable to be upstreamed.",
+      "Handling unicode is tedious in many languages."
+    ],
     "property": "grapheme",
     "input": {
       "value": "uüu"

exercises/practice/rna-transcription/.meta/additional-tests.json

@@ -2,6 +2,10 @@
   {
     "uuid": "6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7",
     "description": "Invalid DNA input",
+    "comments": [
+      "Upstream does not focus on error handling,",
+      "but this is a big focus for Rust."
+    ],
     "property": "invalidDna",
     "input": {
       "dna": "U"
@@ -11,6 +15,10 @@
   {
     "uuid": "6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7",
     "description": "Invalid DNA input at offset",
+    "comments": [
+      "Upstream does not focus on error handling,",
+      "but this is a big focus for Rust."
+    ],
     "property": "invalidDna",
     "input": {
       "dna": "ACGTUXXCTTAA"
@@ -20,6 +28,10 @@
   {
     "uuid": "6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7",
     "description": "Invalid RNA input",
+    "comments": [
+      "Upstream does not focus on error handling,",
+      "but this is a big focus for Rust."
+    ],
     "property": "invalidRna",
     "input": {
       "dna": "T"
@@ -29,6 +41,10 @@
   {
     "uuid": "6eedbb5c-12cb-4c8b-9f51-f8320b4dc2e7",
     "description": "Invalid RNA input at offset",
+    "comments": [
+      "Upstream does not focus on error handling,",
+      "but this is a big focus for Rust."
+    ],
     "property": "invalidRna",
     "input": {
       "dna": "ACGTUXXCTTAA"

exercises/practice/say/.meta/additional-tests.json

@@ -2,6 +2,11 @@
     {
         "uuid": "ecafab60-89f2-4680-9286-56b423e8a7b9",
         "description": "max i64",
+        "comments": [
+            "Idiomatic Rust emphasizes the principle",
+            "'Make invalid states impossible to represent'.",
+            "So it is appropriate to test the entire range of possible inputs."
+        ],
         "property": "say",
         "input": {
             "number": 9223372036854775807
@@ -11,6 +16,11 @@
     {
         "uuid": "88808dac-dffb-46a6-95d4-68d5271a9c38",
         "description": "max u64",
+        "comments": [
+            "Idiomatic Rust emphasizes the principle",
+            "'Make invalid states impossible to represent'.",
+            "So it is appropriate to test the entire range of possible inputs."
+        ],
         "property": "say",
         "input": {
             "number": 18446744073709551615

exercises/practice/scrabble-score/.meta/additional-tests.json

@@ -2,6 +2,10 @@
   {
     "uuid": "9e0faee7-dc23-460b-afec-17c7145ae564",
     "description": "non english scrabble letters do not score",
+    "comments": [
+      "Unicode tests are not suitable to be upstreamed.",
+      "Handling unicode is tedious in many languages."
+    ],
     "property": "score",
     "input": {
       "word": "piñata"
@@ -11,6 +15,10 @@
   {
     "uuid": "3099e8fd-0077-4520-be33-54bb9a1c0dc7",
     "description": "german letters do not score",
+    "comments": [
+      "Unicode tests are not suitable to be upstreamed.",
+      "Handling unicode is tedious in many languages."
+    ],
     "property": "score",
     "input": {
       "word": "STRAßE"

rust-tooling/ci-tests/Cargo.toml

@@ -10,6 +10,7 @@ description = "Tests to be run in CI to make sure the repo is in good shape"
 # Be considerate when adding dependencies to keep compile times reasonable.
 [dependencies]
 convert_case = "0.6.0"
+glob = "0.3.1"
 ignore = "0.4.20"
 models = { version = "0.1.0", path = "../models" }
 serde_json = "1.0.108"

rust-tooling/ci-tests/tests/additional_tests_are_documented.rs

@@ -0,0 +1,22 @@
+use glob::glob;
+use models::problem_spec::SingleTestCase;
+use utils::fs::cd_into_repo_root;
+
+#[test]
+fn additional_tests_are_documented() {
+    cd_into_repo_root();
+    for entry in glob("exercises/*/*/.meta/additional-tests.json").unwrap() {
+        let path = entry.unwrap();
+        let f = std::fs::File::open(&path).unwrap();
+        let reader = std::io::BufReader::new(f);
+        let test_cases: Vec<SingleTestCase> = serde_json::from_reader(reader).unwrap();
+
+        for case in test_cases {
+            assert!(
+                !case.comments.unwrap_or_default().is_empty(),
+                "missing documentation for additional tests in {}",
+                path.display()
+            );
+        }
+    }
+}