diff --git a/common/core/web/input-processor/package-lock.json b/common/core/web/input-processor/package-lock.json
index 96e255d10f..10eeaa2f9a 100644
--- a/common/core/web/input-processor/package-lock.json
+++ b/common/core/web/input-processor/package-lock.json
@@ -229,6 +229,12 @@
 				}
 			}
 		},
+		"mocha-teamcity-reporter": {
+			"version": "3.0.0",
+			"resolved": "https://registry.npmjs.org/mocha-teamcity-reporter/-/mocha-teamcity-reporter-3.0.0.tgz",
+			"integrity": "sha512-FyGgmtFfW2nDwEZU3mrjQShAAK/zhGivwY4HCsqoDoyeS8vV8HGdq1Dn2P+SFaIoCeXTQ0Z+5xVRyikYaKrW5w==",
+			"dev": true
+		},
 		"ms": {
 			"version": "2.0.0",
 			"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
diff --git a/common/core/web/input-processor/package.json b/common/core/web/input-processor/package.json
index f774ca3389..cd0dc7ecb1 100644
--- a/common/core/web/input-processor/package.json
+++ b/common/core/web/input-processor/package.json
@@ -18,15 +18,20 @@
   },
   "homepage": "https://github.com/keymanapp/keyman#readme",
   "devDependencies": {
+    "@keymanapp/lexical-model-compiler": "^14.0.183",
     "@keymanapp/resources-gosh": "^14.0.183",
+    "@types/node": "^11.9.4",
     "chai": "^4.2.0",
     "mocha": "^5.2.0",
+    "mocha-teamcity-reporter": "^3.0.0",
+    "ts-node": "^8.0.2",
     "typescript": "^3.8.3"
   },
   "scripts": {
     "lerna": "cd ../ && npm run lerna --",
     "tsc": "tsc",
-    "test": "gosh ./unit_tests/test.sh"
+    "test": "gosh ./test.sh",
+    "mocha": "mocha"
   },
   "dependencies": {
     "@keymanapp/keyboard-processor": "^14.0.183",
@@ -34,8 +39,6 @@
     "@keymanapp/models-types": "^14.0.183",
     "@keymanapp/web-environment": "^14.0.183",
     "@keymanapp/web-utils": "^14.0.183",
-    "@types/node": "^11.9.4",
-    "eventemitter3": "^4.0.0",
-    "ts-node": "^8.0.2"
+    "eventemitter3": "^4.0.0"
   }
 }
diff --git a/common/core/web/input-processor/src/text/inputProcessor.ts b/common/core/web/input-processor/src/text/inputProcessor.ts
index 20eadd1b24..c4adc7a146 100644
--- a/common/core/web/input-processor/src/text/inputProcessor.ts
+++ b/common/core/web/input-processor/src/text/inputProcessor.ts
@@ -188,4 +188,15 @@ namespace com.keyman.text {
       this.languageProcessor.invalidateContext();
     }
   }
-}
\ No newline at end of file
+}
+
+(function () {
+  let ns = com.keyman.text;
+
+  // Let the InputProcessor be available both in the browser and in Node.
+  if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
+    module.exports = ns.InputProcessor;
+    //@ts-ignore
+    ns.InputProcessor.com = com; // Export the root namespace so that all InputProcessor classes are accessible by unit tests.
+  }
+}());
\ No newline at end of file
diff --git a/common/core/web/input-processor/src/text/prediction/languageProcessor.ts b/common/core/web/input-processor/src/text/prediction/languageProcessor.ts
index d61693d275..0645788e22 100644
--- a/common/core/web/input-processor/src/text/prediction/languageProcessor.ts
+++ b/common/core/web/input-processor/src/text/prediction/languageProcessor.ts
@@ -17,9 +17,15 @@ namespace com.keyman.text.prediction {
     languages: string[];
 
     /**
-     * The path/URL to the file that defines the model.
+     * The path/URL to the file that defines the model.  If both `path` and `raw` are specified,
+     * `path` takes precedence.
      */
     path: string;
+
+    /**
+     * The raw JS script defining the model.  Only used if `path` is not specified.  
+     */
+    code: string;
   }
 
   /**
@@ -127,11 +133,12 @@ namespace com.keyman.text.prediction {
         throw new Error("Null reference not allowed.");
       }
 
-      let file = model.path;
+      let specType: 'file'|'raw' = model.path ? 'file' : 'raw';
+      let source = specType == 'file' ? model.path : model.code;
       let lp = this;
 
       // We should wait until the model is successfully loaded before setting our state values.
-      return this.lmEngine.loadModel(file).then(function(config: Configuration) { 
+      return this.lmEngine.loadModel(source, specType).then(function(config: Configuration) { 
         lp.currentModel = model;
         lp.configuration = config;
 
@@ -359,7 +366,7 @@ namespace com.keyman.text.prediction {
         this._mayPredict = false;
         return false;
       }
-      return this.activeModel && this._mayPredict;
+      return (this.activeModel || false) && this._mayPredict;
     }
 
     public canEnable(): boolean {
diff --git a/common/core/web/input-processor/test.sh b/common/core/web/input-processor/test.sh
new file mode 100755
index 0000000000..d24fb3df27
--- /dev/null
+++ b/common/core/web/input-processor/test.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+
+# We should work within the script's directory, not the one we were called in.
+cd $(dirname "$BASH_SOURCE")
+
+WORKING_DIRECTORY=`pwd`
+
+# Include useful testing resource functions
+## START STANDARD BUILD SCRIPT INCLUDE
+# adjust relative paths as necessary
+THIS_SCRIPT="$(greadlink -f "${BASH_SOURCE[0]}" 2>/dev/null || readlink -f "${BASH_SOURCE[0]}")"
+. "$(dirname "$THIS_SCRIPT")/../../../../resources/build/build-utils.sh"
+. "$KEYMAN_ROOT/resources/shellHelperFunctions.sh"
+## END STANDARD BUILD SCRIPT INCLUDE
+
+# A simple utility script to facilitate unit-testing for the LM Layer.
+# It's rigged to be callable by NPM to facilitate testing during development when in other folders.
+
+display_usage ( ) {
+  echo "test.sh [-skip-package-install|-S] [-CI] [ -? | -h | -help]"
+  echo "  -CI                    to perform continuous-integration friendly tests and reporting formatted for TeamCity"
+  echo "  -? | -h | -help        to display this help information"
+  echo "  -skip-package-install  to bypass refreshing dependencies.  Useful when called by scripts that pre-fetch"
+  echo "  (or -S)"
+  echo ""
+  exit 0
+}
+
+# Defaults
+FLAGS=
+CI_REPORTING=0
+FETCH_DEPS=true
+
+# Parse args
+while [[ $# -gt 0 ]] ; do
+  key="$1"
+  case $key in
+    -h|-help|-\?)
+      display_usage
+      exit
+      ;;
+    -CI)
+      CI_REPORTING=1
+      ;;
+    -skip-package-install|-S)
+      FETCH_DEPS=false
+      ;;
+  esac
+  shift # past argument
+done
+
+if [ $FETCH_DEPS = true ]; then
+  verify_npm_setup
+fi
+
+# Ensures that the lexical model compiler has been built locally.
+echo "${TERM_HEADING}Preparing Lexical Model Compiler for test use${NORMAL}"
+pushd $WORKING_DIRECTORY/node_modules/@keymanapp/lexical-model-compiler
+npm run build
+popd
+
+test-headless ( ) {
+  if (( CI_REPORTING )); then
+    FLAGS="$FLAGS --reporter mocha-teamcity-reporter"
+  fi
+
+  npm run mocha -- --recursive $FLAGS ./tests/cases/
+}
+
+if [ $FETCH_DEPS = true ]; then
+  # First, run tests on the keyboard processor.
+  pushd $WORKING_DIRECTORY/node_modules/@keymanapp/keyboard-processor
+  ./test.sh -skip-package-install || fail "Tests failed by dependencies; aborting integration tests."
+  popd
+fi
+
+# Now we run our local tests.
+echo "${TERM_HEADING}Running Input Processor test suite${NORMAL}"
+test-headless || fail "Input Processor tests failed!"
diff --git a/common/core/web/input-processor/tests/cases/inputProcessor.js b/common/core/web/input-processor/tests/cases/inputProcessor.js
new file mode 100644
index 0000000000..d054d4a620
--- /dev/null
+++ b/common/core/web/input-processor/tests/cases/inputProcessor.js
@@ -0,0 +1,45 @@
+var assert = require('chai').assert;
+var fs = require("fs");
+var vm = require("vm");
+
+let InputProcessor = require('../../dist');
+
+// Required initialization setup.
+global.com = InputProcessor.com; // exports all keyboard-processor namespacing.
+global.keyman = {}; // So that keyboard-based checks against the global `keyman` succeed.
+                    // 10.0+ dependent keyboards, like khmer_angkor, will otherwise fail to load.
+
+// Initialize supplementary plane string extensions
+String.kmwEnableSupplementaryPlane(false);    
+
+// Test the KeyboardProcessor interface.
+describe('InputProcessor', function() {
+  describe('[[constructor]]', function () {
+    it('should initialize without errors', function () {
+      let core = new InputProcessor();
+      assert.isNotNull(core);
+    });
+
+    it('has expected default values after initialization', function () {
+      let core = new InputProcessor();
+
+      assert.isOk(core.keyboardProcessor);
+      assert.isOk(core.languageProcessor);
+      assert.isOk(core.keyboardInterface);
+      assert.isUndefined(core.activeKeyboard); // No keyboard should be loaded yet.
+      assert.isUndefined(core.activeModel);    // Same for the model.
+
+      // These checks are lifted from the keyboard-processor init checks found in
+      // common/core/web/keyboard-processor/tests/cases/basic-init.js.
+      assert.equal('us', core.keyboardProcessor.baseLayout, 'KeyboardProcessor has unexpected base layout')
+      assert.isNotNull(global.KeymanWeb, 'KeymanWeb global was not automatically installed');
+      assert.equal('default', core.keyboardProcessor.layerId, 'Default layer is not set to "default"');
+      assert.isUndefined(core.keyboardProcessor.activeKeyboard, 'Initialized with already-active keyboard');
+
+      // Lifted from languageProcessor.js - the core should not be changing these with its init.
+      assert.isUndefined(core.languageProcessor.activeModel);
+      assert.isFalse(core.languageProcessor.isActive);
+      assert.isTrue(core.languageProcessor.mayPredict);
+    });
+  });
+});
\ No newline at end of file
diff --git a/common/core/web/input-processor/tests/cases/languageProcessor.js b/common/core/web/input-processor/tests/cases/languageProcessor.js
new file mode 100644
index 0000000000..0fdfa5aa66
--- /dev/null
+++ b/common/core/web/input-processor/tests/cases/languageProcessor.js
@@ -0,0 +1,106 @@
+var assert = require('chai').assert;
+var fs = require("fs");
+var vm = require("vm");
+
+/*
+ * Unit tests for the Dummy prediction model.
+ */
+
+var LexicalModelCompiler = require('@keymanapp/lexical-model-compiler/dist/lexical-model-compiler/lexical-model-compiler').default;
+var path = require('path');
+
+let InputProcessor = require('../../dist');
+
+// Required initialization setup.
+global.com = InputProcessor.com; // exports all keyboard-processor namespacing.
+global.keyman = {}; // So that keyboard-based checks against the global `keyman` succeed.
+                    // 10.0+ dependent keyboards, like khmer_angkor, will otherwise fail to load.
+
+// Initialize supplementary plane string extensions
+String.kmwEnableSupplementaryPlane(false); 
+
+let LanguageProcessor = com.keyman.text.prediction.LanguageProcessor;
+
+// Test the KeyboardProcessor interface.
+describe('LanguageProcessor', function() {
+  describe('[[constructor]]', function () {
+    it('should initialize without errors', function () {
+      let lp = new LanguageProcessor();
+      assert.isNotNull(lp);
+    });
+
+    it('has expected default values after initialization', function () {
+      let languageProcessor = new LanguageProcessor();
+
+      // These checks are lifted from the keyboard-processor init checks found in
+      // common/core/web/keyboard-processor/tests/cases/basic-init.js.
+      assert.isUndefined(languageProcessor.lmEngine);
+      assert.isUndefined(languageProcessor.activeModel);
+      assert.isFalse(languageProcessor.isActive);
+      assert.isTrue(languageProcessor.mayPredict);
+
+      // Some aspects of initialization must wait until after construction and overall
+      // load of the core.  See /web/source/kmwbase.ts, in the final IIFE.
+      languageProcessor.init();
+      assert.isOk(languageProcessor.lmEngine);
+    });
+  });
+
+  describe('.predict', function() {
+    let compiler = new LexicalModelCompiler();
+    const MODEL_ID = 'example.qaa.trivial';
+    const PATH = path.join(__dirname, '../../node_modules/@keymanapp/lexical-model-compiler/tests/fixtures', MODEL_ID);
+  
+    describe('using angle brackets for quotes', function() {
+      let modelCode = compiler.generateLexicalModelCode(MODEL_ID, {
+        format: 'trie-1.0',
+        sources: ['wordlist.tsv'],
+        punctuation: {
+          quotesForKeepSuggestion: { open: `«`, close: `»`},
+          insertAfterWord: " " , // OGHAM SPACE MARK
+        }
+      }, PATH);
+
+      let modelSpec = {
+        id: MODEL_ID,
+        languages: ['en'],
+        code: modelCode
+      };
+
+      it("successfully loads the model", function(done) {
+        let languageProcessor = new LanguageProcessor();
+        languageProcessor.init();
+
+        languageProcessor.loadModel(modelSpec).then(function() {
+          assert.isOk(languageProcessor.activeModel); // is only set after a successful load.
+          done();
+        }, function(reason) {
+          assert.fail("Model did not load correctly: " + reason);
+        });
+      });
+
+      it("generates the expected prediction set", function(done) {
+        let languageProcessor = new LanguageProcessor();
+        languageProcessor.init();
+
+        let contextSource = new com.keyman.text.Mock("li", 2);
+        let transcription = contextSource.buildTranscriptionFrom(contextSource, null, null);
+
+        languageProcessor.loadModel(modelSpec).then(function() {
+          languageProcessor.predict(transcription).then(function(suggestions) {
+            assert.isOk(suggestions);
+            assert.equal(suggestions[0].displayAs, '«li»');
+            // Is not actually inserting what is expected at the moment.
+            //assert.equal(suggestions[0].transform.insert, ' ');
+            assert.equal(suggestions[1].displayAs, 'like');
+            assert.equal(suggestions[1].transform.insert, 'like ');
+            done();
+          }).catch(done);
+        }).catch(function() {
+          assert.fail("Unexpected model load failure");
+          done();
+        });
+      });
+    });
+  });
+});
\ No newline at end of file
diff --git a/common/core/web/keyboard-processor/src/text/keyboardProcessor.ts b/common/core/web/keyboard-processor/src/text/keyboardProcessor.ts
index 8f30d25101..0d414841db 100644
--- a/common/core/web/keyboard-processor/src/text/keyboardProcessor.ts
+++ b/common/core/web/keyboard-processor/src/text/keyboardProcessor.ts
@@ -674,7 +674,7 @@ namespace com.keyman.text {
 (function () {
   let ns = com.keyman.text;
 
-  // Let LMLayer be available both in the browser and in Node.
+  // Let the Keyboard Processor be available both in the browser and in Node.
   if (typeof module !== 'undefined' && typeof module.exports !== 'undefined') {
     module.exports = ns.KeyboardProcessor;
     //@ts-ignore
diff --git a/common/core/web/keyboard-processor/test.sh b/common/core/web/keyboard-processor/test.sh
index 56ac3e09f2..61ec245675 100755
--- a/common/core/web/keyboard-processor/test.sh
+++ b/common/core/web/keyboard-processor/test.sh
@@ -64,5 +64,6 @@ pushd "$KEYMAN_ROOT/common/core/web/tools/recorder/src"
 popd
 
 # Run headless (browserless) tests.
+echo "${TERM_HEADING}Running Keyboard Processor test suite${NORMAL}"
 test-headless || fail "Keyboard Processor tests failed!"
 
diff --git a/common/core/web/tests/resources/json/models/angle-punct-dummy.json b/common/core/web/tests/resources/json/models/angle-punct-dummy.json
new file mode 100644
index 0000000000..34b3beeb58
--- /dev/null
+++ b/common/core/web/tests/resources/json/models/angle-punct-dummy.json
@@ -0,0 +1,5 @@
+{
+  "id": "angle-punct-dummy",
+  "languages": ["en"],
+  "filename":"resources/models/angle-punct-dummy.js"
+}
\ No newline at end of file
diff --git a/common/core/web/tests/resources/json/models/quote-punct-dummy.json b/common/core/web/tests/resources/json/models/quote-punct-dummy.json
new file mode 100644
index 0000000000..c6aa45ff09
--- /dev/null
+++ b/common/core/web/tests/resources/json/models/quote-punct-dummy.json
@@ -0,0 +1,5 @@
+{
+  "id": "quote-punct-dummy",
+  "languages": ["en"],
+  "filename":"resources/models/quote-punct-dummy.js"
+}
\ No newline at end of file
diff --git a/common/predictive-text/index.ts b/common/predictive-text/index.ts
index 2d5ef53f5b..e8d438d50e 100644
--- a/common/predictive-text/index.ts
+++ b/common/predictive-text/index.ts
@@ -94,15 +94,25 @@ namespace com.keyman.text.prediction {
     /**
      * Initializes the LMLayer worker with a path to the desired model file.
      */
-    loadModel(modelFilePath: string): Promise<Configuration> {
+    loadModel(modelSource: string, loadType: 'file' | 'raw' = 'file'): Promise<Configuration> {
       return new Promise((resolve, _reject) => {
         // Sets up so the promise is resolved in the onMessage() callback, when it receives
         // the 'ready' message.
         this._declareLMLayerReady = resolve;
 
+        let modelSourceSpec: any = {
+          type: loadType
+        };
+
+        if(loadType == 'file') {
+          modelSourceSpec.file = modelSource;
+        } else {
+          modelSourceSpec.code = modelSource;
+        }
+
         this._worker.postMessage({
           message: 'load',
-          model: modelFilePath
+          source: modelSourceSpec
         });
       });
     }
diff --git a/common/predictive-text/unit_tests/headless/top-level-lmlayer.js b/common/predictive-text/unit_tests/headless/top-level-lmlayer.js
index f340044a19..a4645e7e27 100644
--- a/common/predictive-text/unit_tests/headless/top-level-lmlayer.js
+++ b/common/predictive-text/unit_tests/headless/top-level-lmlayer.js
@@ -49,7 +49,11 @@ describe('LMLayer', function() {
         }
 
         assert.propertyVal(data, 'message', 'load');
-        assert.isString(data.model);
+        assert.property(data, 'source');
+        assert.propertyVal(data.source, 'type', 'file');
+        assert.notProperty(data.source, 'code');
+        assert.property(data.source, 'file');
+        assert.isString(data.source.file);
       
         callAsynchronously(() => fakeWorker.onmessage({
           data: {
diff --git a/common/predictive-text/unit_tests/headless/worker-dummy-integration.js b/common/predictive-text/unit_tests/headless/worker-dummy-integration.js
index 6f6c34d860..19043e86bf 100644
--- a/common/predictive-text/unit_tests/headless/worker-dummy-integration.js
+++ b/common/predictive-text/unit_tests/headless/worker-dummy-integration.js
@@ -1,4 +1,5 @@
 var assert = require('chai').assert;
+var fs = require('fs');
 let LMLayer = require('../../build/headless');
 
 /*
@@ -11,7 +12,7 @@ let LMLayer = require('../../build/headless');
  */
 describe('LMLayer using dummy model', function () {
   describe('Prediction', function () {
-    it('will predict future suggestions', function () {
+    it('will predict future suggestions (loaded from file)', function () {
       var lmLayer = new LMLayer(capabilities());
 
       var stripIDs = function(suggestions) {
@@ -49,6 +50,47 @@ describe('LMLayer using dummy model', function () {
         return Promise.resolve();
       });
     });
+
+    it('will predict future suggestions (loaded from raw source)', function () {
+      var lmLayer = new LMLayer(capabilities());
+
+      var stripIDs = function(suggestions) {
+        suggestions.forEach(function(suggestion) {
+          delete suggestion.id;
+        });
+      };
+
+      // We're running headlessly, so the path can be relative to the npm root directory.
+      let modelCode = fs.readFileSync("./unit_tests/in_browser/resources/models/simple-dummy.js").toString();
+
+      // We're testing many as asynchronous messages in a row.
+      // this would be cleaner using async/await syntax.
+      // Not done yet, as this test case is a slightly-edited copy of the in-browser version.
+      return lmLayer.loadModel(
+        modelCode, 'raw'
+      ).then(function (actualConfiguration) {
+        return Promise.resolve();
+      }).then(function () {
+        return lmLayer.predict(zeroTransform(), emptyContext());
+      }).then(function (suggestions) {
+        stripIDs(suggestions);
+        assert.deepEqual(suggestions, iGotDistractedByHazel()[0]);
+        return lmLayer.predict(zeroTransform(), emptyContext());
+      }).then(function (suggestions) {
+        stripIDs(suggestions);
+        assert.deepEqual(suggestions, iGotDistractedByHazel()[1]);
+        return lmLayer.predict(zeroTransform(), emptyContext());
+      }).then(function (suggestions) {
+        stripIDs(suggestions);
+        assert.deepEqual(suggestions, iGotDistractedByHazel()[2]);
+        return lmLayer.predict(zeroTransform(), emptyContext());
+      }).then(function (suggestions) {
+        stripIDs(suggestions);
+        assert.deepEqual(suggestions, iGotDistractedByHazel()[3]);
+        lmLayer.shutdown();
+        return Promise.resolve();
+      });
+    });
   });
 
   describe('Wordbreaking', function () {
diff --git a/common/predictive-text/unit_tests/headless/worker-initialization.js b/common/predictive-text/unit_tests/headless/worker-initialization.js
index d5d9b55b1d..bb436ffccc 100644
--- a/common/predictive-text/unit_tests/headless/worker-initialization.js
+++ b/common/predictive-text/unit_tests/headless/worker-initialization.js
@@ -1,5 +1,6 @@
 var assert = require('chai').assert;
 var sinon = require('sinon');
+var fs = require('fs');
 
 let LMLayerWorker = require('../../build/intermediate');
 
@@ -25,7 +26,10 @@ describe('LMLayerWorker', function() {
       // Sending it the `load` message should notify us that it's loaded!
       worker.onMessage(createMessageEventWithData({
         message: 'load',
-        model: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        }
       }));
       assert(fakePostMessage.calledOnce);
     });
@@ -69,7 +73,10 @@ describe('LMLayerWorker', function() {
       // Send a message; we should get something back.
       worker.onMessage(createMessageEventWithData({
         message: 'load',
-        model: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        }
       }));
 
       // It called the postMessage() in its global scope. 
@@ -128,7 +135,7 @@ describe('LMLayerWorker', function() {
       }, /invalid message/i);
     });
 
-    it('should send back a "ready" message', function () {
+    it('should send back a "ready" message when given a file', function () {
       var fakePostMessage = sinon.fake();
       var context = {
         postMessage: fakePostMessage
@@ -140,7 +147,10 @@ describe('LMLayerWorker', function() {
 
       worker.onMessage(createMessageEventWithData({
         message: 'load',
-        model: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        }
       }));
 
       assert(fakePostMessage.calledOnceWith(sinon.match({
@@ -148,6 +158,31 @@ describe('LMLayerWorker', function() {
       })));
     });
 
+    it('should send back a "ready" message when given raw code', function () {
+      var fakePostMessage = sinon.fake();
+      var context = {
+        postMessage: fakePostMessage
+      };
+      context.importScripts = importScriptsWith(context);
+
+      var worker = LMLayerWorker.install(context);
+      configWorker(worker);
+
+      let modelCode = fs.readFileSync("./unit_tests/in_browser/resources/models/simple-dummy.js").toString();
+
+      worker.onMessage(createMessageEventWithData({
+        message: 'load',
+        source: {
+          type: 'raw',
+          code: modelCode
+        }
+      }));
+
+      assert(fakePostMessage.calledOnceWith(sinon.match({
+        message: 'ready'
+      })), 'mocked callback was not called');
+    });
+
     it('should send back configuration', function () {
       var fakePostMessage = sinon.fake();
       var context = {
@@ -162,7 +197,10 @@ describe('LMLayerWorker', function() {
       var maxCodeUnits = 64;
       worker.onMessage(createMessageEventWithData({
         message: 'load',
-        model: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        }
       }));
 
       sinon.assert.calledWithMatch(fakePostMessage, {
diff --git a/common/predictive-text/unit_tests/headless/worker-predict.js b/common/predictive-text/unit_tests/headless/worker-predict.js
index c9d7eb42d7..4b22f57512 100644
--- a/common/predictive-text/unit_tests/headless/worker-predict.js
+++ b/common/predictive-text/unit_tests/headless/worker-predict.js
@@ -39,7 +39,10 @@ describe('LMLayerWorker', function () {
       
       worker.onMessage(createMessageEventWithData({
         message: 'load',
-        model: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: "./unit_tests/in_browser/resources/models/simple-dummy.js"
+        }
       }));
       sinon.assert.calledWithMatch(fakePostMessage.lastCall, {
         message: 'ready',
diff --git a/common/predictive-text/unit_tests/in_browser/cases/worker.js b/common/predictive-text/unit_tests/in_browser/cases/worker.js
index 253155db37..795adc3d06 100644
--- a/common/predictive-text/unit_tests/in_browser/cases/worker.js
+++ b/common/predictive-text/unit_tests/in_browser/cases/worker.js
@@ -30,7 +30,10 @@ describe('LMLayerWorker', function () {
       worker.postMessage({
         message: 'load',
         // Since the worker's based in a blob, it's not on the 'same domain'.  We need to absolute-path the model file.
-        model: document.location.protocol + '//' + document.location.host + "/resources/models/simple-dummy.js"
+        source: {
+          type: 'file',
+          file: document.location.protocol + '//' + document.location.host + "/resources/models/simple-dummy.js"
+        }
       });
     });
   });
diff --git a/common/predictive-text/worker/index.ts b/common/predictive-text/worker/index.ts
index 158aa488ba..f55e289f06 100644
--- a/common/predictive-text/worker/index.ts
+++ b/common/predictive-text/worker/index.ts
@@ -80,11 +80,13 @@ class LMLayerWorker {
    */
   private _importScripts: ImportScripts;
 
+  private self: any;
+
   private _platformCapabilities: Capabilities;
 
   private _hostURL: string;
 
-  private _currentModelSource: string;
+  private _currentModelSource: ModelSourceSpec;
 
   constructor(options = {
     importScripts: null,
@@ -130,14 +132,23 @@ class LMLayerWorker {
     let im = event.data as IncomingMessage;
     if(im.message == 'load') {
       let data = im as LoadMessage;
-      if(data.model == this._currentModelSource) {
+      let duplicated = false;
+      if(this._currentModelSource && data.source.type == this._currentModelSource.type) {
+        if(data.source.type == 'file' && data.source.file == (this._currentModelSource as ModelFile).file) {
+          duplicated = true;
+        } else if(data.source.type == 'raw' && data.source.code == (this._currentModelSource as ModelEval).code) {
+          duplicated = true;
+        }
+      }
+
+      if(duplicated) {
         // Some JS implementations don't allow web workers access to the console.
         if(typeof console !== 'undefined') {
           console.warn("Duplicate model load message detected - squashing!");
         }
         return;
       } else {
-        this._currentModelSource = data.model;
+        this._currentModelSource = data.source;
       }
     } else if(im.message == 'unload') {
       this._currentModelSource = null;
@@ -256,6 +267,7 @@ class LMLayerWorker {
    * description and capabilities.
    */
   private transitionToLoadingState() {
+    let _this = this;
     this.state = {
       name: 'modelless',
       handleMessage: (payload) => {
@@ -265,7 +277,20 @@ class LMLayerWorker {
         }
 
         // TODO: validate configuration?
-        this.loadModelFile(payload.model);
+        if(payload.source.type == 'file') {
+          _this.loadModelFile(payload.source.file);
+        } else {
+          // Creates a closure capturing all top-level names that the model must be able to reference.
+          // `eval` runs by scope rules; our virtualized worker needs a special scope for this to work.
+          //
+          // Reference: https://stackoverflow.com/a/40108685
+          // Note that we don't need `this`, but we do need the namespaces seen below. 
+          let code = payload.source.code;
+          let evalInContext = function(LMLayerWorker, models, correction, wordBreakers) {
+            eval(code);
+          }
+          evalInContext(_this, models, correction, wordBreakers);
+        }
       }
     };
   }
@@ -353,6 +378,7 @@ class LMLayerWorker {
   static install(scope: DedicatedWorkerGlobalScope): LMLayerWorker {
     let worker = new LMLayerWorker({ postMessage: scope.postMessage, importScripts: scope.importScripts.bind(scope) });
     scope.onmessage = worker.onMessage.bind(worker);
+    worker.self = scope;
 
     // Ensures that the worker instance is accessible for loaded model scripts.
     // Assists unit-testing.
diff --git a/common/predictive-text/worker/worker-interfaces.ts b/common/predictive-text/worker/worker-interfaces.ts
index ba56438d60..986973faaf 100644
--- a/common/predictive-text/worker/worker-interfaces.ts
+++ b/common/predictive-text/worker/worker-interfaces.ts
@@ -54,6 +54,27 @@ interface ConfigMessage {
   capabilities: Capabilities;
 }
 
+interface ModelFile {
+  type: 'file';
+
+  /**
+   * The model should be loaded from a file via importScripts.
+   */
+  file: string;
+}
+
+interface ModelEval {
+  type: 'raw';
+
+  /**
+   * Rather than loading a file, this specifies the contents that would normally be within
+   * a .model.ts file.  Useful for dynamically-compiled models that occur when testing.
+   */
+  code: string;
+}
+
+type ModelSourceSpec = ModelFile | ModelEval;
+
 /**
  * The structure of an initialization message. It should include the model (either in
  * source code or parameter form), as well as the keyboard's capabilities.
@@ -64,7 +85,7 @@ interface LoadMessage {
   /**
    * The model's compiled JS file.
    */
-  model: string;
+  source: ModelSourceSpec;
 }
 
 /**
diff --git a/web/unit_tests/test.sh b/web/unit_tests/test.sh
index 8c9e733e44..c3c72c7dbd 100755
--- a/web/unit_tests/test.sh
+++ b/web/unit_tests/test.sh
@@ -129,9 +129,8 @@ cd ../tools/recorder
 # Run our headless tests first.
 # Since we're using `lerna`, this actually puts us within the projects when run in-repo!
 
-# First:  Keyboard Processor tests.
-echo "${TERM_HEADING}Running Keyboard Processor test suite${NORMAL}"
-pushd $WORKING_DIRECTORY/node_modules/@keymanapp/keyboard-processor
+# First:  Web-core tests.
+pushd $WORKING_DIRECTORY/node_modules/@keymanapp/input-processor
 ./test.sh $HEADLESS_FLAGS || fail "Tests failed by dependencies; aborting integration tests."
 # Once done, now we run the integrated (KeymanWeb) tests.
 popd
diff --git a/windows/src/test/unit-tests/Makefile b/windows/src/test/unit-tests/Makefile
index 86b9790a59..9fdacbeb68 100644
--- a/windows/src/test/unit-tests/Makefile
+++ b/windows/src/test/unit-tests/Makefile
@@ -34,6 +34,12 @@ lexical-model-compiler:
     start /wait ./build.sh -test
 !endif
 
+# Revert any local changes to the original source; these changes can break
+# later sub-builds.
+    cd $(KEYMAN_ROOT)\developer\js
+		git restore package.json
+		git restore package-lock.json
+
 kmcomp-x64-structures:
 	cd $(ROOT)\src\test\unit-tests\group-helper-rsp19902
 	$(MAKE) $(TARGET)