tests: add init tests (#1064)

Author: ken-matsui

tests/04-init.sh

@@ -0,0 +1,43 @@
+#!/bin/sh
+
+WHEREAMI=$(dirname "$(realpath "$0")")
+export CABIN_TERM_COLOR='never'
+
+test_description='Test the init command'
+
+. $WHEREAMI/sharness.sh
+
+test_expect_success 'cabin init' '
+    OUT=$(mktemp -d) &&
+    test_when_finished "rm -rf $OUT" &&
+    mkdir $OUT/pkg &&
+    cd $OUT/pkg &&
+    "$WHEREAMI"/../build/cabin init 2>actual &&
+    cat >expected <<-EOF &&
+     Created binary (application) \`pkg\` package
+EOF
+    test_cmp expected actual &&
+    test -f cabin.toml
+'
+
+test_expect_success 'cabin init existing' '
+    OUT=$(mktemp -d) &&
+    test_when_finished "rm -rf $OUT" &&
+    mkdir $OUT/pkg &&
+    cd $OUT/pkg &&
+    "$WHEREAMI"/../build/cabin init 2>actual &&
+    cat >expected <<-EOF &&
+     Created binary (application) \`pkg\` package
+EOF
+    test_cmp expected actual &&
+    test -f cabin.toml
+    test_must_fail "$WHEREAMI"/../build/cabin init 2>actual &&
+    cat >expected <<-EOF &&
+Error: cannot initialize an existing cabin package
+Error: '\''cabin init'\'' failed with exit code \`1\`
+EOF
+    test_cmp expected actual &&
+    test -f cabin.toml
+'
+
+test_done