chushihua

node_modules/bfj-node4/test/unit/jsonstream.js

@@ -0,0 +1,95 @@
+'use strict'
+
+const assert = require('chai').assert
+const spooks = require('spooks')
+
+const modulePath = '../../src/jsonstream'
+
+suite('jsonstream:', () => {
+  let log
+
+  setup(() => {
+    log = {}
+  })
+
+  test('require does not throw', () => {
+    assert.doesNotThrow(() => {
+      require(modulePath)
+    })
+  })
+
+  test('require returns function', () => {
+    assert.isFunction(require(modulePath))
+  })
+
+  suite('require:', () => {
+    let Stream
+
+    setup(() => {
+      Stream = require(modulePath)
+    })
+
+    test('Stream expects one argument', () => {
+      assert.lengthOf(Stream, 1)
+    })
+
+    test('calling Stream with function argument doesNotThrow', () => {
+      assert.doesNotThrow(() => {
+        Stream(() => {})
+      })
+    })
+
+    test('calling Stream with object argument throws', () => {
+      assert.throws(() => {
+        Stream({ read: () => {} })
+      })
+    })
+
+    test('calling Stream with new returns Stream instance', () => {
+      assert.instanceOf(new Stream(() => {}), Stream)
+    })
+
+    test('calling Stream with new returns Readable instance', () => {
+      assert.instanceOf(new Stream(() => {}), require('stream').Readable)
+    })
+
+    test('calling Stream without new returns Stream instance', () => {
+      assert.instanceOf(Stream(() => {}), Stream)
+    })
+
+    suite('instantiate:', () => {
+      let jsonstream
+
+      setup(() => {
+        jsonstream = new Stream(spooks.fn({ name: 'read', log: log }))
+      })
+
+      test('jsonstream has _read method', () => {
+        assert.isFunction(jsonstream._read)
+      })
+
+      test('_read expects no arguments', () => {
+        assert.lengthOf(jsonstream._read, 0)
+      })
+
+      test('read was not called', () => {
+        assert.strictEqual(log.counts.read, 0)
+      })
+
+      suite('jsonstream._read:', () => {
+        setup(() => {
+          jsonstream._read()
+        })
+
+        test('read was called once', () => {
+          assert.strictEqual(log.counts.read, 1)
+          assert.isUndefined(log.these.read[0])
+        })
+
+        test('read was called correctly', () => {
+          assert.lengthOf(log.args.read[0], 0)
+        })
+      })
+    })
+  })
+})