Add tests! =]

test/unit/util_variable.js

@@ -0,0 +1,83 @@
+const tap = require('tap');
+const Target = require('../../src/engine/target');
+const Runtime = require('../../src/engine/runtime');
+const VariableUtil = require('../../src/util/variable-util');
+
+let target1;
+let target2;
+
+tap.beforeEach(() => {
+    const runtime = new Runtime();
+    target1 = new Target(runtime);
+    target1.blocks.createBlock({
+        id: 'a block',
+        fields: {
+            VARIABLE: {
+                id: 'id1',
+                value: 'foo'
+            }
+        }
+    });
+    target1.blocks.createBlock({
+        id: 'another block',
+        fields: {
+            TEXT: {
+                value: 'not a variable'
+            }
+        }
+    });
+
+    target2 = new Target(runtime);
+    target2.blocks.createBlock({
+        id: 'a different block',
+        fields: {
+            VARIABLE: {
+                id: 'id2',
+                value: 'bar'
+            }
+        }
+    });
+    target2.blocks.createBlock({
+        id: 'another var block',
+        fields: {
+            VARIABLE: {
+                id: 'id1',
+                value: 'foo'
+            }
+        }
+    });
+
+    return Promise.resolve(null);
+});
+
+const test = tap.test;
+
+test('get all var refs', t => {
+    const allVarRefs = VariableUtil.getAllVarRefsForTargets([target1, target2]);
+    t.equal(Object.keys(allVarRefs).length, 2);
+    t.equal(allVarRefs.id1.length, 2);
+    t.equal(allVarRefs.id2.length, 1);
+    t.equal(allVarRefs['not a variable'], undefined);
+
+    t.end();
+});
+
+test('merge variable ids', t => {
+    // Redo the id for the variable with 'id1'
+    VariableUtil.updateVariableIdentifiers(target1.blocks.getAllVariableAndListReferences().id1, 'renamed id');
+    const varField = target1.blocks.getBlock('a block').fields.VARIABLE;
+    t.equals(varField.id, 'renamed id');
+    t.equals(varField.value, 'foo');
+
+    t.end();
+});
+
+test('merge variable ids but with new name too', t => {
+    // Redo the id for the variable with 'id1'
+    VariableUtil.updateVariableIdentifiers(target1.blocks.getAllVariableAndListReferences().id1, 'renamed id', 'baz');
+    const varField = target1.blocks.getBlock('a block').fields.VARIABLE;
+    t.equals(varField.id, 'renamed id');
+    t.equals(varField.value, 'baz');
+
+    t.end();
+});