diff --git a/client/dom/dom-tree.spec.js b/client/dom/dom-tree.spec.js
index 13f56f6d..64a28b29 100644
--- a/client/dom/dom-tree.spec.js
+++ b/client/dom/dom-tree.spec.js
@@ -1,7 +1,16 @@
-import test from 'supertape';
+import {test, stub} from 'supertape';
 import {create} from 'auto-globals';
 import {tryCatch} from 'try-catch';
-import {isContainClass} from './dom-tree.js';
+import {
+    isContainClass,
+    getByTag,
+    getById,
+    getByClass,
+    getByDataName,
+    getByClassAll,
+    hide,
+    show,
+} from './dom-tree.js';
 
 test('dom: isContainClass: no element', (t) => {
     const [e] = tryCatch(isContainClass);
@@ -38,3 +47,93 @@ test('dom: isContainClass: contains: array', (t) => {
     t.calledWith(contains, [className], 'should call contains');
     t.end();
 });
+
+test('dom: getByTag', (t) => {
+    const getElementsByTagName = stub();
+    const element = {getElementsByTagName};
+    
+    getByTag('div', element);
+    
+    t.calledWith(getElementsByTagName, ['div'], 'should call getElementsByTagName');
+    t.end();
+});
+
+test('dom: getById', (t) => {
+    const querySelector = stub();
+    const element = {querySelector};
+    
+    getById('my-id', element);
+    
+    t.calledWith(querySelector, ['#my-id'], 'should call querySelector with id selector');
+    t.end();
+});
+
+test('dom: getByClassAll', (t) => {
+    const getElementsByClassName = stub();
+    const element = {getElementsByClassName};
+    
+    getByClassAll('my-class', element);
+    
+    t.calledWith(getElementsByClassName, ['my-class'], 'should call getElementsByClassName');
+    t.end();
+});
+
+test('dom: getByClass: calls getByClassAll', (t) => {
+    const element = {
+        getElementsByClassName: stub().returns(['first']),
+    };
+    
+    const result = getByClass('my-class', element);
+    
+    t.equal(result, 'first', 'should return first element from class list');
+    t.end();
+});
+
+test('dom: getByDataName', (t) => {
+    const querySelector = stub();
+    const element = {querySelector};
+    
+    getByDataName('hello', element);
+    
+    t.calledWith(querySelector, ['[data-name="hello"]'], 'should call querySelector with data-name selector');
+    t.end();
+});
+
+test('dom: hide', (t) => {
+    const add = stub();
+    const element = {
+        classList: {add},
+    };
+    
+    hide(element);
+    
+    t.calledWith(add, ['hidden'], 'should add hidden class');
+    t.end();
+});
+
+test('dom: show', (t) => {
+    const remove = stub();
+    const element = {
+        classList: {remove},
+    };
+    
+    show(element);
+    
+    t.calledWith(remove, ['hidden'], 'should remove hidden class');
+    t.end();
+});
+
+test('dom: getByClassAll: without element uses document', (t) => {
+    const getElementsByClassName = stub();
+    const prevDocument = globalThis.document;
+    
+    globalThis.document = {getElementsByClassName};
+    
+    getByClassAll('my-class');
+    
+    globalThis.document = prevDocument;
+    
+    t.calledWith(getElementsByClassName, ['my-class'], 'should fallback to document when no element');
+    t.end();
+});
+
diff --git a/client/modules/config/input.spec.js b/client/modules/config/input.spec.js
index 537c1632..a2ddcda2 100644
--- a/client/modules/config/input.spec.js
+++ b/client/modules/config/input.spec.js
@@ -1,5 +1,5 @@
-import {test} from 'supertape';
-import {convert} from './input.js';
+import {test, stub} from 'supertape';
+import {convert, getName, getValue, setValue} from './input.js';
 
 test('cloudcmd: client: config: input: convert', (t) => {
     const result = convert({
@@ -13,3 +13,106 @@ test('cloudcmd: client: config: input: convert', (t) => {
     t.deepEqual(result, expected);
     t.end();
 });
+
+test('cloudcmd: client: config: input: convert: bool', (t) => {
+    const result = convert({
+        auth: true,
+    });
+    
+    const expected = {
+        auth: ' checked',
+    };
+    
+    t.deepEqual(result, expected);
+    t.end();
+});
+
+test('cloudcmd: client: config: input: convert: bool false', (t) => {
+    const result = convert({
+        auth: false,
+    });
+    
+    const expected = {
+        auth: '',
+    };
+    
+    t.deepEqual(result, expected);
+    t.end();
+});
+
+test('cloudcmd: client: config: input: getName', (t) => {
+    const getAttribute = stub().returns('js-hello');
+    const element = {getAttribute};
+    
+    const result = getName(element);
+    
+    t.equal(result, 'hello', 'should strip js- prefix');
+    t.end();
+});
+
+test('cloudcmd: client: config: input: getValue: checkbox', (t) => {
+    const querySelector = stub().returns({
+        type: 'checkbox',
+        checked: true,
+    });
+    const element = {querySelector};
+    
+    const result = getValue('auth', element);
+    
+    t.ok(result, 'should return checked value');
+    t.end();
+});
+
+test('cloudcmd: client: config: input: getValue: number', (t) => {
+    const querySelector = stub().returns({
+        type: 'number',
+        value: '42',
+    });
+    const element = {querySelector};
+    
+    const result = getValue('port', element);
+    
+    t.equal(result, 42, 'should return number');
+    t.end();
+});
+
+test('cloudcmd: client: config: input: getValue: default', (t) => {
+    const querySelector = stub().returns({
+        type: 'text',
+        value: 'hello',
+    });
+    const element = {querySelector};
+    
+    const result = getValue('name', element);
+    
+    t.equal(result, 'hello', 'should return value as is');
+    t.end();
+});
+
+test('cloudcmd: client: config: input: setValue: checkbox', (t) => {
+    const el = {
+        type: 'checkbox',
+        checked: false,
+    };
+    const querySelector = stub().returns(el);
+    const element = {querySelector};
+    
+    setValue('auth', true, element);
+    
+    t.ok(el.checked, 'should set checked');
+    t.end();
+});
+
+test('cloudcmd: client: config: input: setValue: default', (t) => {
+    const el = {
+        type: 'text',
+        value: 'old',
+    };
+    const querySelector = stub().returns(el);
+    const element = {querySelector};
+    
+    setValue('name', 'new', element);
+    
+    t.equal(el.value, 'new', 'should set value');
+    t.end();
+});
diff --git a/client/sw/register.spec.js b/client/sw/register.spec.js
index 47420ba7..52699f0b 100644
--- a/client/sw/register.spec.js
+++ b/client/sw/register.spec.js
@@ -65,7 +65,7 @@ test('sw: register: registerSW: http', async (t, {location, navigator}) => {
 
 test('sw: register: registerSW: https self-signed', async (t, {location, navigator}) => {
     Object.assign(location, {
-        protocol: 'https',
+        protocol: 'https:',
         hostname: 'self-signed.badssl.com',
     });
     
diff --git a/server/distribute/log.spec.js b/server/distribute/log.spec.js
index be50dcc3..a3b03f68 100644
--- a/server/distribute/log.spec.js
+++ b/server/distribute/log.spec.js
@@ -32,3 +32,34 @@ test('distribute: log: config', (t) => {
 }, {
     checkAssertionsCount: false,
 });
+
+
+test('distribute: log: stringToRGB', (t) => {
+    const result = log.stringToRGB('abc');
+    
+    t.deepEqual(result, [97, 3, 294], 'should return [charCode, length, crc]');
+    t.end();
+});
+
+test('distribute: log: makeColor', (t) => {
+    const result = log.makeColor('hello');
+    
+    t.ok(result.includes('hello'), 'should return colored string containing the input');
+    t.end();
+});
+
+
+test('distribute: log: getDescription', (t) => {
+    const message = 'some error';
+    const result = log.getDescription({
+        message,
+    });
+    
+    t.equal(result, message, 'should return message from error object');
+    t.end();
+});
+
+test('distribute: log: connectedStr', (t) => {
+    t.ok(log.connectedStr, 'should have connectedStr');
+    t.end();
+});
diff --git a/server/env.spec.js b/server/env.spec.js
index d8065b2c..760e7739 100644
--- a/server/env.spec.js
+++ b/server/env.spec.js
@@ -54,3 +54,17 @@ test('cloudcmd: server: env: bool: number: 0', (t) => {
     t.notOk(result);
     t.end();
 });
+
+test('cloudcmd: server: env: bool: zero uppercase', (t) => {
+    const {CLOUDCMD_TERMINAL} = process.env;
+    
+    process.env.CLOUDCMD_TERMINAL = '0';
+    
+    const result = env.bool('terminal');
+    
+    process.env.CLOUDCMD_TERMINAL = CLOUDCMD_TERMINAL;
+    
+    t.notOk(result);
+    t.end();
+});
+
diff --git a/server/themes.spec.js b/server/themes.spec.js
index 1fc95ec8..8d761a3c 100644
--- a/server/themes.spec.js
+++ b/server/themes.spec.js
@@ -30,3 +30,22 @@ test('themes: no args', (t) => {
     t.match(themes.light, css);
     t.end();
 });
+
+test('themes: production', (t) => {
+    const themes = getThemes({
+        isDev: false,
+    });
+    
+    t.ok(themes.dark, 'should have dark theme');
+    t.end();
+});
+
+test('themes: production: light', (t) => {
+    const themes = getThemes({
+        isDev: false,
+    });
+    
+    t.ok(themes.light, 'should have light theme');
+    t.end();
+});
+