test: Add tests for command line usage (#204)

package.json

@@ -8,7 +8,7 @@
     "coverage": "nyc report --reporter=html && open coverage/index.html",
     "lint": "prettier --check '{lib,test}/**/*.js' 'docs/*.md' 'tweets/README.md' README.md package.json",
     "lint:fix": "prettier --write '{lib,test}/**/*.js' 'docs/*.md' 'tweets/README.md' README.md package.json",
-    "test": "tap --branches=50 --functions=50 --lines=50 --statements=50 test/*/test.js",
+    "test": "tap --branches=70 --functions=100 --lines=80 --statements=80 test/*/test.js",
     "posttest": "npm run -s lint"
   },
   "keywords": [],

test/command-line-has-invalid-tweet/test.js

@@ -0,0 +1,27 @@
+/**
+ * This test checks the ability to invoke a tweet using the `--file` command line flag
+ * but provides a missing filename so generates an error.
+ */
+
+const nock = require("nock");
+const tap = require("tap");
+
+// MOCK
+process.chdir(__dirname);
+process.argv = [
+  "node",
+  "lib/index.js",
+  "--file",
+  "tweets/does-not-exist.tweet",
+];
+
+process.on("exit", (code) => {
+  tap.equal(code, 1);
+  tap.same(nock.pendingMocks(), []);
+
+  // above code exits with 1 (error), but tap expects 0.
+  // Tap adds the "process.exitCode" property for that purpose.
+  process.exitCode = 0;
+});
+
+require("../../lib");

test/command-line-has-no-tweet/test.js

@@ -0,0 +1,22 @@
+/**
+ * This test checks the ability to invoke a tweet using the `--file` command line flag
+ * but provides no actual filename so generates an error.
+ */
+
+const nock = require("nock");
+const tap = require("tap");
+
+// MOCK
+process.chdir(__dirname);
+process.argv = ["node", "lib/index.js", "--file"];
+
+process.on("exit", (code) => {
+  tap.equal(code, 1);
+  tap.same(nock.pendingMocks(), []);
+
+  // above code exits with 1 (error), but tap expects 0.
+  // Tap adds the "process.exitCode" property for that purpose.
+  process.exitCode = 0;
+});
+
+require("../../lib");

test/command-line-has-tweet-with-front-matter-media-in-directory/custom/tweets/hello-world.tweet

@@ -0,0 +1,7 @@
+---
+media:
+  - file: blahaj.png
+    alt: Blahaj!
+---
+
+Cuddly :)

test/command-line-has-tweet-with-front-matter-media-in-directory/test.js

@@ -0,0 +1,74 @@
+/**
+ * This test checks the ability to invoke a tweet using the `--file` command line flag
+ * which is in a custom directory and has front matter that includes media.
+ */
+
+const nock = require("nock");
+const tap = require("tap");
+
+// MOCK
+nock("https://api.twitter.com")
+  .post("/1.1/statuses/update.json", (body) => {
+    tap.equal(body.status, "Cuddly :)\n");
+    tap.equal(body.media_ids, "0000000000000000002");
+    return true;
+  })
+  .reply(201, {
+    id_str: "0000000000000000001",
+    user: {
+      screen_name: "gr2m",
+    },
+  });
+
+nock("https://upload.twitter.com")
+  .post("/1.1/media/upload.json", (body) => {
+    tap.equal(body.command, "INIT");
+    tap.equal(body.total_bytes, "107352");
+    tap.equal(body.media_type, "image/png");
+    return true;
+  })
+  .reply(201, {
+    media_id_string: "0000000000000000002",
+  })
+
+  .post("/1.1/media/upload.json", () => {
+    // TODO: Body just seems to be a string here, not an object.
+    // tap.equal(body.command, "APPEND");
+    // tap.equal(body.media_id, "0000000000000000002");
+    // tap.equal(body.media_type, "");
+    // tap.equal(body.media, "");
+    // tap.equal(body.segment_index, 0);
+    return true;
+  })
+  .reply(201)
+
+  .post("/1.1/media/upload.json", (body) => {
+    tap.equal(body.command, "FINALIZE");
+    tap.equal(body.media_id, "0000000000000000002");
+    return true;
+  })
+  .reply(201);
+
+// TODO: Support alt text (twitter library does not support JSON payloads)
+//       https://github.com/desmondmorris/node-twitter/issues/347
+// .post("/1.1/media/metadata/create.json", (body) => {
+//   tap.equal(body.media_id, "0000000000000000002");
+//   tap.equal(body.alt_text.text, "Blahaj!");
+//   return true;
+// })
+// .reply(201);
+
+process.chdir(__dirname);
+process.argv = [
+  "node",
+  "lib/index.js",
+  "--file",
+  "custom/tweets/hello-world.tweet",
+];
+
+process.on("exit", (code) => {
+  tap.equal(code, 0);
+  tap.same(nock.pendingMocks(), []);
+});
+
+require("../../lib");

test/command-line-has-tweet-with-front-matter-media/test.js

@@ -0,0 +1,69 @@
+/**
+ * This test checks the ability to invoke a tweet using the `--file` command line flag
+ * which has front matter that includes media.
+ */
+
+const nock = require("nock");
+const tap = require("tap");
+
+// MOCK
+nock("https://api.twitter.com")
+  .post("/1.1/statuses/update.json", (body) => {
+    tap.equal(body.status, "Cuddly :)\n");
+    tap.equal(body.media_ids, "0000000000000000002");
+    return true;
+  })
+  .reply(201, {
+    id_str: "0000000000000000001",
+    user: {
+      screen_name: "gr2m",
+    },
+  });
+
+nock("https://upload.twitter.com")
+  .post("/1.1/media/upload.json", (body) => {
+    tap.equal(body.command, "INIT");
+    tap.equal(body.total_bytes, "107352");
+    tap.equal(body.media_type, "image/png");
+    return true;
+  })
+  .reply(201, {
+    media_id_string: "0000000000000000002",
+  })
+
+  .post("/1.1/media/upload.json", () => {
+    // TODO: Body just seems to be a string here, not an object.
+    // tap.equal(body.command, "APPEND");
+    // tap.equal(body.media_id, "0000000000000000002");
+    // tap.equal(body.media_type, "");
+    // tap.equal(body.media, "");
+    // tap.equal(body.segment_index, 0);
+    return true;
+  })
+  .reply(201)
+
+  .post("/1.1/media/upload.json", (body) => {
+    tap.equal(body.command, "FINALIZE");
+    tap.equal(body.media_id, "0000000000000000002");
+    return true;
+  })
+  .reply(201);
+
+// TODO: Support alt text (twitter library does not support JSON payloads)
+//       https://github.com/desmondmorris/node-twitter/issues/347
+// .post("/1.1/media/metadata/create.json", (body) => {
+//   tap.equal(body.media_id, "0000000000000000002");
+//   tap.equal(body.alt_text.text, "Blahaj!");
+//   return true;
+// })
+// .reply(201);
+
+process.chdir(__dirname);
+process.argv = ["node", "lib/index.js", "--file", "tweets/hello-world.tweet"];
+
+process.on("exit", (code) => {
+  tap.equal(code, 0);
+  tap.same(nock.pendingMocks(), []);
+});
+
+require("../../lib");

test/command-line-has-tweet-with-front-matter-media/tweets/hello-world.tweet

@@ -0,0 +1,7 @@
+---
+media:
+  - file: blahaj.png
+    alt: Blahaj!
+---
+
+Cuddly :)

test/command-line-has-tweet/test.js

@@ -0,0 +1,29 @@
+/**
+ * This test checks the ability to invoke a tweet using the `--file` command line flag.
+ */
+
+const nock = require("nock");
+const tap = require("tap");
+
+// MOCK
+nock("https://api.twitter.com")
+  .post("/1.1/statuses/update.json", (body) => {
+    tap.equal(body.status, "Hello, world!\n");
+    return true;
+  })
+  .reply(201, {
+    id_str: "0000000000000000001",
+    user: {
+      screen_name: "gr2m",
+    },
+  });
+
+process.chdir(__dirname);
+process.argv = ["node", "lib/index.js", "--file", "tweets/hello-world.tweet"];
+
+process.on("exit", (code) => {
+  tap.equal(code, 0);
+  tap.same(nock.pendingMocks(), []);
+});
+
+require("../../lib");

test/command-line-has-tweet/tweets/hello-world.tweet

@@ -0,0 +1 @@
+Hello, world!