Change "arch" into "platform" because it's more accurate.

Signed-off-by: Tom Chauveau <tom.chauveau@epitech.eu>

tests/core/platform-config/platform-config.cue

@@ -0,0 +1,58 @@
+package main
+
+import (
+	"alpha.dagger.io/dagger/op"
+	"alpha.dagger.io/dagger"
+)
+
+targetArch: dagger.#Input & {string}
+
+TestFetch: #up: [
+	op.#FetchContainer & {
+		ref: "docker.io/alpine"
+	},
+
+	op.#Exec & {
+		args: ["/bin/sh", "-c", "echo $(uname -a) >> /platform.txt"]
+		always: true
+	},
+
+	op.#Exec & {
+		args: ["/bin/sh", "-c", """
+			cat /platform.txt | grep "$TARGET_ARCH"
+			"""]
+		env: TARGET_ARCH: targetArch
+	},
+]
+
+TestBuild: #up: [
+	op.#DockerBuild & {
+		dockerfile: """
+				FROM alpine
+				
+				RUN echo $(uname -a) > /platform.txt
+			"""
+	},
+
+	op.#Exec & {
+		args: ["/bin/sh", "-c", """
+			cat /platform.txt | grep "$TARGET_ARCH"
+			"""]
+		env: TARGET_ARCH: targetArch
+	},
+]
+
+TestLoad: #up: [
+	op.#Load & {
+		from: TestBuild
+	},
+
+	// Compare arch
+	op.#Exec & {
+		args: ["/bin/sh", "-c", "diff /build/platform.txt /fetch/platform.txt"]
+		mount: {
+			"/build": from: TestBuild
+			"/fetch": from: TestFetch
+		}
+	},
+]