feat(dossier): pending resolution state

spec/models/concern/dossier_resolvable_concern_spec.rb

@@ -0,0 +1,28 @@
+describe DossierResolvableConcern do
+  describe "#pending_resolution?" do
+    let(:dossier) { create(:dossier, :en_construction) }
+
+    context "when dossier has no resolution" do
+      it { expect(dossier.pending_resolution?).to be_falsey }
+    end
+
+    context "when dossier has a pending resolution" do
+      before { create(:dossier_resolution, dossier:) }
+
+      it { expect(dossier.pending_resolution?).to be_truthy }
+    end
+
+    context "when dossier has a resolved resolution" do
+      before { create(:dossier_resolution, :resolved, dossier:) }
+
+      it { expect(dossier.pending_resolution?).to be_falsey }
+    end
+
+    context "when dossier is not en_construction" do
+      let(:dossier) { create(:dossier, :en_instruction) }
+      before { create(:dossier_resolution, dossier:) }
+
+      it { expect(dossier.pending_resolution?).to be_falsey }
+    end
+  end
+end