Fluent testing for Kotlin in Japanese

fluent.kt

package io.github.yaraki.superfluent

import org.hamcrest.CoreMatchers.`is`
import org.hamcrest.CoreMatchers.equalTo
import org.hamcrest.MatcherAssert.assertThat
import org.hamcrest.Matchers.greaterThan
import org.junit.Test

class Sample {

    @Test
    fun a() {
        assertThat(2 * 3, `is`(6))
        6 と (2 * 3) が 等しい

        assertThat("abc", `is`(equalTo("abc")))
        "abc" と "abc" が 等しい

        assertThat(2, `is`(greaterThan(1)))
        1 より 2 が 大きい
    }

}

inline infix fun <reified E> E.と(other: E) = Pair(this, other)
inline infix fun <reified E> Pair<E, E>.が(predicate: (Pair<E, E>) -> Unit) {
    predicate(this)
}

val 等しい = fun(params: Pair<Any, Any>) {
    assertThat(params.first, `is`(equalTo(params.second)))
}

class Comparison<E : Comparable<E>>(val a: E, val b: E)

inline infix fun <reified E : Comparable<E>> E.より(other: E) = Comparison(this, other)
inline infix fun <reified E : Comparable<E>> Comparison<E>.が(predicate: (Comparison<E>) -> Unit) {
    predicate(this)
}

val 大きい = fun(params: Comparison<Int>) {
    assertThat(params.b, `is`(greaterThan(params.a)))
}