Add test mechanism

bin/flow2avro

@@ -1,5 +1,7 @@
 #!/usr/bin/env node
 
+'use strict';
+
 const fs = require('fs');
 
 const argv = require('optimist')

package.json

@@ -25,7 +25,10 @@
     "babylon": "^6.18.0",
     "optimist": "^0.6.1"
   },
+  "devDependencies": {
+      "jsondiffpatch": "^0.2.5"
+  },
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "tests/do"
   }
 }

tests/do

@@ -0,0 +1,30 @@
+#!/usr/bin/env node
+
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const jsondiffpatch = require('jsondiffpatch');
+
+const generate = require('..');
+
+const runner = path.basename(__filename);
+
+const list = fs.readdirSync(__dirname)
+    .filter(fname => fname !== runner)
+    .map(fname => path.relative('.', path.join(__dirname, fname)));
+
+for (const fpath of list) {
+    const code = fs.readFileSync(fpath, 'utf8');
+
+    const actual = generate(code);
+    const expected = eval(code.split('// ###')[1]);
+
+    const delta = jsondiffpatch.diff(actual, expected);
+
+    console.log(`${fpath}...`);
+
+    if (delta) {
+        jsondiffpatch.console.log(delta);
+    }
+}

tests/primitives.js

@@ -0,0 +1,54 @@
+type Type = {
+    a: string,
+    b: number,
+    c: boolean,
+    d: null,
+};
+
+interface Interface {
+    a: string;
+    b: number;
+    c: boolean;
+    d: null;
+};
+
+class Class {
+    a: string;
+    b: number;
+    c: boolean;
+    d: null;
+}
+
+// ###
+({
+    Type: {
+        type: 'record',
+        name: 'Type',
+        fields: [
+            {name: 'a', type: 'string'},
+            {name: 'b', type: 'double'},
+            {name: 'c', type: 'boolean'},
+            {name: 'd', type: 'null'},
+        ],
+    },
+    Interface: {
+        type: 'record',
+        name: 'Interface',
+        fields: [
+            {name: 'a', type: 'string'},
+            {name: 'b', type: 'double'},
+            {name: 'c', type: 'boolean'},
+            {name: 'd', type: 'null'},
+        ],
+    },
+    Class: {
+        type: 'record',
+        name: 'Class',
+        fields: [
+            {name: 'a', type: 'string'},
+            {name: 'b', type: 'double'},
+            {name: 'c', type: 'boolean'},
+            {name: 'd', type: 'null'},
+        ],
+    },
+});