feat(expect): add more methods

src/Expectation.php

@@ -53,7 +53,17 @@ final class Expectation
     }
 
     /**
-     * Assert that value is false.
+     * Assert the value is empty.
+     */
+    public function toBeEmpty()
+    {
+        Assert::assertEmpty($this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert the value is false.
      */
     public function toBeFalse()
     {
@@ -63,7 +73,7 @@ final class Expectation
     }
 
     /**
-     * Assert that value is greater than expected one.
+     * Assert the value is greater than expected one.
      *
      * @param int|float $value
      */
@@ -123,9 +133,29 @@ final class Expectation
     }
 
     /**
-     * Assert that needles is a substring of value.
+     * Assert the value contains only variables of type.
      *
-     * @param string $needle
+     * @param string|mixed $type
+     */
+    public function toContainOnly($type)
+    {
+        Assert::assertContainsOnly($type, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert the value contains only instances of $instance.
+     */
+    public function toContainOnlyInstancesOf(string $instance)
+    {
+        Assert::assertContainsOnlyInstancesOf($instance, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert that needles is a substring of value.
      */
     public function toContainString(string $needle)
     {
@@ -137,8 +167,6 @@ final class Expectation
     /**
      * Assert that needles is a substring of value, ignoring the
      * difference in casing.
-     *
-     * @param string $needle
      */
     public function toContainStringIgnoringCase(string $needle)
     {
@@ -147,6 +175,102 @@ final class Expectation
         return $this;
     }
 
+    /**
+     * Assert that $count matches the number of elements of $value.
+     */
+    public function toCount(int $count)
+    {
+        Assert::assertCount($count, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that two variables have the same value.
+     *
+     * @param mixed $value
+     */
+    public function toEqual($value)
+    {
+        Assert::assertEquals($value, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that two variables are equals, ignoring the casing
+     * for the comparison.
+     *
+     * @param mixed $value
+     */
+    public function toEqualIgnoringCase($value)
+    {
+        Assert::assertEqualsIgnoringCase($value, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Asserts that two variables have the same value.
+     * The contents of $expected and $actual are canonicalized before
+     * they are compared. For instance, when the two variables $value and
+     * $this->value are arrays, then these arrays are sorted before they are
+     * compared. When $value and $this->value are objects,
+     * each object is converted to an array containing all private,
+     * protected and public attributes.
+     *
+     * @param mixed $value
+     */
+    public function toEqualCanonicalizing($value)
+    {
+        Assert::assertEqualsCanonicalizing($value, $this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert that the absolute difference between $value and $this->value
+     * is greather thatn $delta.
+     *
+     * @param mixed $value
+     */
+    public function toEqualWithDelta($value, float $delta)
+    {
+        Assert::assertEqualsWithDelta($value, $this->value, $delta);
+
+        return $this;
+    }
+
+    /**
+     * Assert that the value is a directory.
+     */
+    public function toBeExistingDirectory()
+    {
+        Assert::assertDirectoryExists($this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert that the value is a directory and is readable.
+     */
+    public function toBeReadableDirectory()
+    {
+        Assert::assertDirectoryIsReadable($this->value);
+
+        return $this;
+    }
+
+    /**
+     * Assert that the value is a directory and is writable.
+     */
+    public function toBeWritableDirectory()
+    {
+        Assert::assertDirectoryIsWritable($this->value);
+
+        return $this;
+    }
+
     /**
      * Dynamically calls methods on the class without any arguments.
      *

tests/.snapshots/success.txt

@@ -5,6 +5,96 @@
    PASS  Tests\Expect\ToBe
   ✓ strict comparisons
   ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\thatDirectoryExists
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\thatDirectoryIsReadable
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeEmpty
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeFalse
+  ✓ strict comparisons
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeGreatherThan
+  ✓ passes
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeGreatherThanOrEqual
+  ✓ passes
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeLessThan
+  ✓ passes
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toBeLessThanOrEqual
+  ✓ passes
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toContain
+  ✓ passes
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toContainOnly
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toContainOnlyInstancesOf
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toContainString
+  ✓ is case sensitive
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toContainStringIgnoringCase
+  ✓ ignore difference in casing
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toCount
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toEqual
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toEqualCanonicalizing
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toEqualIgnoringCase
+  ✓ pass
+  ✓ failures
+  ✓ not failures
+
+   PASS  Tests\Expect\toEqualWithDelta
+  ✓ pass
+  ✓ failures
   ✓ not failures
 
    PASS  Tests\Features\AfterAll
@@ -172,5 +262,5 @@
    WARN  Tests\Visual\Success
   - visual snapshot of test suite on success
 
-  Tests:  6 skipped, 99 passed
+  Tests:  6 skipped, 153 passed
-  Time:   3.62s
+  Time:   4.35s

tests/Expect/thatDirectoryExists.php

@@ -0,0 +1,17 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    $temp = sys_get_temp_dir();
+
+    expect($temp)->toBeExistingDirectory();
+});
+
+test('failures', function () {
+    expect('/random/path/whatever')->toBeExistingDirectory();
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect('.')->not->toBeExistingDirectory();
+})->throws(ExpectationFailedException::class);

tests/Expect/thatDirectoryIsReadable.php

@@ -0,0 +1,15 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect(sys_get_temp_dir())->toBeWritableDirectory();
+});
+
+test('failures', function () {
+    expect('/random/path/whatever')->toBeWritableDirectory();
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect(sys_get_temp_dir())->not->toBeWritableDirectory();
+})->throws(ExpectationFailedException::class);

tests/Expect/toBeEmpty.php

@@ -0,0 +1,18 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect([])->toBeEmpty();
+    expect(null)->toBeEmpty();
+});
+
+test('failures', function () {
+    expect([1, 2])->toBeEmpty();
+    expect(' ')->toBeEmpty();
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect([])->not->toBeEmpty();
+    expect(null)->not->toBeEmpty();
+})->throws(ExpectationFailedException::class);

tests/Expect/toContainOnly.php

@@ -0,0 +1,17 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect([1, 2, 3])->toContainOnly('int');
+    expect(['hello', 'world'])->toContainOnly('string');
+});
+
+test('failures', function () {
+    expect([1, 2, '3'])->toContainOnly('string');
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect([1, 2, 3])->not->toContainOnly('int');
+    expect(['hello', 'world'])->not->toContainOnly('string');
+})->throws(ExpectationFailedException::class);

tests/Expect/toContainOnlyInstancesOf.php

@@ -0,0 +1,23 @@
+<?php
+
+use Pest\Actions\AddsTests;
+use Pest\Expectation;
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    $expected = [new Expectation('whatever')];
+
+    expect($expected)->toContainOnlyInstancesOf(Expectation::class);
+});
+
+test('failures', function () {
+    $expected = [new Expectation('whatever')];
+
+    expect($expected)->toContainOnlyInstancesOf(AddsTests::class);
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    $expected = [new Expectation('whatever')];
+
+    expect($expected)->not->toContainOnlyInstancesOf(Expectation::class);
+})->throws(ExpectationFailedException::class);

tests/Expect/toCount.php

@@ -0,0 +1,15 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect([1, 2, 3])->toCount(3);
+});
+
+test('failures', function () {
+    expect([1, 2, 3])->toCount(4);
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect([1, 2, 3])->not->toCount(3);
+})->throws(ExpectationFailedException::class);

tests/Expect/toEqual.php

@@ -0,0 +1,15 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect('00123')->toEqual(123);
+});
+
+test('failures', function () {
+    expect(['a', 'b', 'c'])->toEqual(['a', 'b']);
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect('042')->not->toEqual(42);
+})->throws(ExpectationFailedException::class);

tests/Expect/toEqualCanonicalizing.php

@@ -0,0 +1,16 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect('00123')->toEqualCanonicalizing(123);
+    expect(['a', 'b', 'c'])->toEqualCanonicalizing(['c', 'a', 'b']);
+});
+
+test('failures', function () {
+    expect(['a', 'b', 'c'])->toEqualCanonicalizing(['a', 'b']);
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect('042')->not->toEqualCanonicalizing(42);
+})->throws(ExpectationFailedException::class);

tests/Expect/toEqualIgnoringCase.php

@@ -0,0 +1,15 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect('hello')->toEqualIgnoringCase('HELLO');
+});
+
+test('failures', function () {
+    expect('hello')->toEqualIgnoringCase('BAR');
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect('HELLO')->not->toEqualIgnoringCase('HelLo');
+})->throws(ExpectationFailedException::class);

tests/Expect/toEqualWithDelta.php

@@ -0,0 +1,15 @@
+<?php
+
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function () {
+    expect(1.0)->toEqualWithDelta(1.3, .4);
+});
+
+test('failures', function () {
+    expect(1.0)->toEqualWithDelta(1.5, .1);
+})->throws(ExpectationFailedException::class);
+
+test('not failures', function () {
+    expect(1.0)->not->toEqualWithDelta(1.6, .7);
+})->throws(ExpectationFailedException::class);