#29 Add unit tests to new loadConfig function

README.md

@@ -132,7 +132,7 @@ deno run --env --allow-net --allow-env --allow-read main.ts
 ### Run tests
 
 ```sh
-deno test
+deno test --allow-read
 ```
 
 ### Local Helm Chart

fixtures/invalid.yaml

@@ -0,0 +1,3 @@
+Here is some garbage data
+It is not valid yaml
+{ it: is: not: even: close: to: valid: yaml }

fixtures/missing-field.yaml

@@ -0,0 +1,5 @@
+ssh-keys:
+  - name: no key
+    user: demery
+    tags:
+      - oak

fixtures/missing-key.yaml

@@ -0,0 +1 @@
+some_key: some_value

fixtures/valid.yaml

@@ -0,0 +1,12 @@
+ssh-keys:
+  - name: key-one
+    key: "ssh-rsa my-key-one"
+    user: joeblogs
+    tags:
+      - foo
+  - name: pgp-yubikey
+    key: "ssh-rsa my-key-two"
+    user: joeblogs
+    tags:
+      - foo
+      - bar

src/load_config.test.ts

@@ -0,0 +1,79 @@
+import {
+    assertEquals,
+    assertRejects,
+} from "https://deno.land/[email protected]/testing/asserts.ts";
+import loadConfig from "./load_config.ts";
+import { ZodError } from "../deps.ts";
+
+Deno.test("loadConfig: must throw error if file is not found", async () => {
+    await assertRejects(
+        async () => {
+            await loadConfig("non-existent-file.yaml");
+        },
+        Deno.errors.NotFound,
+        "No such file or directory",
+    );
+});
+
+Deno.test("loadConfig: must throw syntax error if file is not valid yaml", async () => {
+    await assertRejects(
+        async () => {
+            await loadConfig("./fixtures/invalid.yaml");
+        },
+        SyntaxError,
+        "end of the stream or a document separator is expected",
+    );
+});
+
+Deno.test("loadConfig: must throw zod error if file is not valid config", async () => {
+    await assertRejects(
+        async () => {
+            await loadConfig("./fixtures/missing-key.yaml");
+        },
+        ZodError,
+        `"code": "invalid_type"`,
+    );
+
+    await assertRejects(
+        async () => {
+            await loadConfig("./fixtures/missing-field.yaml");
+        },
+        ZodError,
+        `{
+    "code": "invalid_type",
+    "expected": "string",
+    "received": "undefined",
+    "path": [
+      "ssh-keys",
+      0,
+      "key"
+    ],
+    "message": "Required"
+  }`,
+    );
+});
+
+Deno.test("loadConfig: must load valid config", async () => {
+    const config = await loadConfig("./fixtures/valid.yaml");
+    assertEquals(config, {
+        "ssh-keys": [
+            {
+                key: "ssh-rsa my-key-one",
+                name: "key-one",
+                tags: [
+                    "foo",
+                ],
+                user: "joeblogs",
+            },
+            {
+                key: "ssh-rsa my-key-two",
+                name: "pgp-yubikey",
+                tags: [
+                    "foo",
+                    "bar",
+                ],
+                user: "joeblogs",
+            },
+        ],
+    });
+});