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-rw-r--r--test/unit/data/composite/control-flow/exposeConstant.js42
-rw-r--r--test/unit/data/composite/control-flow/exposeDependency.js64
-rw-r--r--test/unit/data/composite/control-flow/withResultOfAvailabilityCheck.js195
3 files changed, 301 insertions, 0 deletions
diff --git a/test/unit/data/composite/control-flow/exposeConstant.js b/test/unit/data/composite/control-flow/exposeConstant.js
new file mode 100644
index 00000000..0c75894b
--- /dev/null
+++ b/test/unit/data/composite/control-flow/exposeConstant.js
@@ -0,0 +1,42 @@
+import t from 'tap';
+
+import {compositeFrom, continuationSymbol, input} from '#composite';
+import {exposeConstant} from '#composite/control-flow';
+
+t.test(`exposeConstant: basic behavior`, t => {
+  t.plan(2);
+
+  const composite1 = compositeFrom({
+    compose: false,
+
+    steps: [
+      exposeConstant({
+        value: input.value('foo'),
+      }),
+    ],
+  });
+
+  t.match(composite1, {
+    expose: {
+      dependencies: [],
+    },
+  });
+
+  t.equal(composite1.expose.compute(), 'foo');
+});
+
+t.test(`exposeConstant: validate inputs`, t => {
+  t.plan(2);
+
+  t.throws(
+    () => exposeConstant({}),
+    {message: `Errors in input options passed to exposeConstant`, errors: [
+      {message: `Required these inputs: value`},
+    ]});
+
+  t.throws(
+    () => exposeConstant({value: 'some dependency'}),
+    {message: `Errors in input options passed to exposeConstant`, errors: [
+      {message: `value: Expected input.value() call, got dependency name`},
+    ]});
+});
diff --git a/test/unit/data/composite/control-flow/exposeDependency.js b/test/unit/data/composite/control-flow/exposeDependency.js
new file mode 100644
index 00000000..8f6bfd01
--- /dev/null
+++ b/test/unit/data/composite/control-flow/exposeDependency.js
@@ -0,0 +1,64 @@
+import t from 'tap';
+
+import {compositeFrom, continuationSymbol, input} from '#composite';
+import {exposeDependency} from '#composite/control-flow';
+
+t.test(`exposeDependency: basic behavior`, t => {
+  t.plan(4);
+
+  const composite1 = compositeFrom({
+    compose: false,
+
+    steps: [
+      exposeDependency({dependency: 'foo'}),
+    ],
+  });
+
+  t.match(composite1, {
+    expose: {
+      dependencies: ['foo'],
+    },
+  });
+
+  t.equal(composite1.expose.compute({foo: 'bar'}), 'bar');
+
+  const composite2 = compositeFrom({
+    compose: false,
+
+    steps: [
+      {
+        dependencies: ['foo'],
+        compute: (continuation, {foo}) =>
+          continuation({'#bar': foo.toUpperCase()}),
+      },
+
+      exposeDependency({dependency: '#bar'}),
+    ],
+  });
+
+  t.match(composite2, {
+    expose: {
+      dependencies: ['foo'],
+    },
+  });
+
+  t.equal(composite2.expose.compute({foo: 'bar'}), 'BAR');
+});
+
+t.test(`exposeDependency: validate inputs`, t => {
+  t.plan(2);
+
+  t.throws(
+    () => exposeDependency({}),
+    {message: `Errors in input options passed to exposeDependency`, errors: [
+      {message: `Required these inputs: dependency`},
+    ]});
+
+  t.throws(
+    () => exposeDependency({
+      dependency: input.value('some static value'),
+    }),
+    {message: `Errors in input options passed to exposeDependency`, errors: [
+      {message: `dependency: Expected dependency name, got input.value() call`},
+    ]});
+});
diff --git a/test/unit/data/composite/control-flow/withResultOfAvailabilityCheck.js b/test/unit/data/composite/control-flow/withResultOfAvailabilityCheck.js
new file mode 100644
index 00000000..2bcabb4f
--- /dev/null
+++ b/test/unit/data/composite/control-flow/withResultOfAvailabilityCheck.js
@@ -0,0 +1,195 @@
+import t from 'tap';
+
+import {compositeFrom, continuationSymbol, input} from '#composite';
+import {withResultOfAvailabilityCheck} from '#composite/control-flow';
+
+const composite = compositeFrom({
+  compose: false,
+
+  steps: [
+    withResultOfAvailabilityCheck({
+      from: 'from',
+      mode: 'mode',
+    }).outputs({
+      ['#availability']: '#result',
+    }),
+
+    {
+      dependencies: ['#result'],
+      compute: ({'#result': result}) => result,
+    },
+  ],
+});
+
+t.test(`withResultOfAvailabilityCheck: basic behavior`, t => {
+  t.plan(1);
+
+  t.match(composite, {
+    expose: {
+      dependencies: ['from', 'mode'],
+    },
+  });
+});
+
+const quickCompare = (t, expect, {from, mode}) =>
+  t.equal(composite.expose.compute({from, mode}), expect);
+
+const quickThrows = (t, {from, mode}) =>
+  t.throws(() => composite.expose.compute({from, mode}));
+
+t.test(`withResultOfAvailabilityCheck: mode = null`, t => {
+  t.plan(11);
+
+  quickCompare(t, true,  {mode: 'null', from: 'truthy string'});
+  quickCompare(t, true,  {mode: 'null', from: 123});
+  quickCompare(t, true,  {mode: 'null', from: true});
+
+  quickCompare(t, true,  {mode: 'null', from: ''});
+  quickCompare(t, true,  {mode: 'null', from: 0});
+  quickCompare(t, true,  {mode: 'null', from: -1});
+  quickCompare(t, true,  {mode: 'null', from: false});
+
+  quickCompare(t, true,  {mode: 'null', from: [1, 2, 3]});
+  quickCompare(t, true,  {mode: 'null', from: []});
+
+  quickCompare(t, false, {mode: 'null', from: null});
+  quickCompare(t, false, {mode: 'null', from: undefined});
+});
+
+t.test(`withResultOfAvailabilityCheck: mode = empty`, t => {
+  t.plan(11);
+
+  quickThrows(t, {mode: 'empty', from: 'truthy string'});
+  quickThrows(t, {mode: 'empty', from: 123});
+  quickThrows(t, {mode: 'empty', from: true});
+
+  quickThrows(t, {mode: 'empty', from: ''});
+  quickThrows(t, {mode: 'empty', from: 0});
+  quickThrows(t, {mode: 'empty', from: -1});
+  quickThrows(t, {mode: 'empty', from: false});
+
+  quickCompare(t, true,  {mode: 'empty', from: [1, 2, 3]});
+  quickCompare(t, false, {mode: 'empty', from: []});
+
+  quickCompare(t, false, {mode: 'empty', from: null});
+  quickCompare(t, false, {mode: 'empty', from: undefined});
+});
+
+t.test(`withResultOfAvailabilityCheck: mode = falsy`, t => {
+  t.plan(11);
+
+  quickCompare(t, true,  {mode: 'falsy', from: 'truthy string'});
+  quickCompare(t, true,  {mode: 'falsy', from: 123});
+  quickCompare(t, true,  {mode: 'falsy', from: true});
+
+  quickCompare(t, false, {mode: 'falsy', from: ''});
+  quickCompare(t, false, {mode: 'falsy', from: 0});
+  quickCompare(t, true,  {mode: 'falsy', from: -1});
+  quickCompare(t, false, {mode: 'falsy', from: false});
+
+  quickCompare(t, true,  {mode: 'falsy', from: [1, 2, 3]});
+  quickCompare(t, false, {mode: 'falsy', from: []});
+
+  quickCompare(t, false, {mode: 'falsy', from: null});
+  quickCompare(t, false, {mode: 'falsy', from: undefined});
+});
+
+t.test(`withResultOfAvailabilityCheck: mode = index`, t => {
+  t.plan(11);
+
+  quickCompare(t, false, {mode: 'index', from: 'truthy string'});
+  quickCompare(t, true,  {mode: 'index', from: 123});
+  quickCompare(t, false, {mode: 'index', from: true});
+
+  quickCompare(t, false, {mode: 'index', from: ''});
+  quickCompare(t, true,  {mode: 'index', from: 0});
+  quickCompare(t, false, {mode: 'index', from: -1});
+  quickCompare(t, false, {mode: 'index', from: false});
+
+  quickCompare(t, false, {mode: 'index', from: [1, 2, 3]});
+  quickCompare(t, false, {mode: 'index', from: []});
+
+  quickCompare(t, false, {mode: 'index', from: null});
+  quickCompare(t, false, {mode: 'index', from: undefined});
+});
+
+t.test(`withResultOfAvailabilityCheck: default mode`, t => {
+  t.plan(1);
+
+  const template = withResultOfAvailabilityCheck({
+    from: 'foo',
+  });
+
+  t.match(template.toDescription(), {
+    inputMapping: {
+      from: input.dependency('foo'),
+      mode: input.value('null'),
+    },
+  });
+});
+
+t.test(`withResultOfAvailabilityCheck: validate static inputs`, t => {
+  t.plan(5);
+
+  t.throws(
+    () => withResultOfAvailabilityCheck({}),
+    {message: `Errors in input options passed to withResultOfAvailabilityCheck`, errors: [
+      {message: `Required these inputs: from`},
+    ]});
+
+  t.doesNotThrow(() =>
+    withResultOfAvailabilityCheck({
+      from: 'dependency1',
+      mode: 'dependency2',
+    }));
+
+  t.doesNotThrow(() =>
+    withResultOfAvailabilityCheck({
+      from: input.value('some static value'),
+      mode: input.value('null'),
+    }));
+
+  t.throws(
+    () => withResultOfAvailabilityCheck({
+      from: 'foo',
+      mode: input.value('invalid'),
+    }),
+    {message: `Errors in input options passed to withResultOfAvailabilityCheck`, errors: [
+      {message: `mode: Expected one of null empty falsy index, got invalid`},
+    ]});
+
+  t.throws(() =>
+    withResultOfAvailabilityCheck({
+      from: input.value(null),
+      mode: input.value(null),
+    }),
+    {message: `Errors in input options passed to withResultOfAvailabilityCheck`, errors: [
+      {message: `mode: Expected a value, got null`},
+    ]});
+});
+
+t.test(`withResultOfAvailabilityCheck: validate dynamic inputs`, t => {
+  t.plan(2);
+
+  t.throws(
+    () => composite.expose.compute({
+      from: 'apple',
+      mode: 'banana',
+    }),
+    {message: `Error computing composition`, cause:
+      {message: `Error computing composition withResultOfAvailabilityCheck`, cause:
+        {message: `Errors in input values provided to withResultOfAvailabilityCheck`, errors: [
+          {message: `mode: Expected one of null empty falsy index, got banana`},
+        ]}}});
+
+  t.throws(
+    () => composite.expose.compute({
+      from: null,
+      mode: null,
+    }),
+    {message: `Error computing composition`, cause:
+      {message: `Error computing composition withResultOfAvailabilityCheck`, cause:
+        {message: `Errors in input values provided to withResultOfAvailabilityCheck`, errors: [
+          {message: `mode: Expected a value, got null`},
+        ]}}});
+});